Merge branch 'master' into testing

24 files changed, 1640 insertions, 0 deletions

diff --git a/test/data/dictionaries/invalid-dictionary1/index.json b/test/data/dictionaries/invalid-dictionary1/index.json
new file mode 100644
index 00000000..1be3b360
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary1/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 1",
+    "format": 0,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Invalid format number"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary2/index.json b/test/data/dictionaries/invalid-dictionary2/index.json
new file mode 100644
index 00000000..ba2cc669
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary2/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 2",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Empty entry in kanji bank"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary2/kanji_bank_1.json b/test/data/dictionaries/invalid-dictionary2/kanji_bank_1.json
new file mode 100644
index 00000000..5825bcac
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary2/kanji_bank_1.json
@@ -0,0 +1,3 @@
+[
+    []
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary3/index.json b/test/data/dictionaries/invalid-dictionary3/index.json
new file mode 100644
index 00000000..f23fa3f0
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary3/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 3",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Invalid type entry in kanji meta bank"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary3/kanji_meta_bank_1.json b/test/data/dictionaries/invalid-dictionary3/kanji_meta_bank_1.json
new file mode 100644
index 00000000..9e26dfee
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary3/kanji_meta_bank_1.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary4/index.json b/test/data/dictionaries/invalid-dictionary4/index.json
new file mode 100644
index 00000000..542791d7
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary4/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 4",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Invalid value as part of a tag bank entry"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary4/tag_bank_1.json b/test/data/dictionaries/invalid-dictionary4/tag_bank_1.json
new file mode 100644
index 00000000..4f19b476
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary4/tag_bank_1.json
@@ -0,0 +1,3 @@
+[
+    [{"invalid": true}, "category1", 0, "tag1 notes", 0]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary5/index.json b/test/data/dictionaries/invalid-dictionary5/index.json
new file mode 100644
index 00000000..e0d0f00e
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary5/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 5",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Invalid type as part of a term bank entry"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary5/term_bank_1.json b/test/data/dictionaries/invalid-dictionary5/term_bank_1.json
new file mode 100644
index 00000000..7288a996
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary5/term_bank_1.json
@@ -0,0 +1,3 @@
+[
+    ["打", "だ", "tag1 tag2", "", 2, false, 1, "tag3 tag4 tag5"]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary6/index.json b/test/data/dictionaries/invalid-dictionary6/index.json
new file mode 100644
index 00000000..b91acca3
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary6/index.json
@@ -0,0 +1,7 @@
+{
+    "title": "Invalid Dictionary 6",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true,
+    "description": "Invalid root type for term meta bank"
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/invalid-dictionary6/term_meta_bank_1.json b/test/data/dictionaries/invalid-dictionary6/term_meta_bank_1.json
new file mode 100644
index 00000000..02e4a84d
--- /dev/null
+++ b/test/data/dictionaries/invalid-dictionary6/term_meta_bank_1.json
@@ -0,0 +1 @@
+false
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/index.json b/test/data/dictionaries/valid-dictionary1/index.json
new file mode 100644
index 00000000..3034bf38
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/index.json
@@ -0,0 +1,6 @@
+{
+    "title": "Test Dictionary",
+    "format": 3,
+    "revision": "test",
+    "sequenced": true
+}
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/kanji_bank_1.json b/test/data/dictionaries/valid-dictionary1/kanji_bank_1.json
new file mode 100644
index 00000000..264f94c1
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/kanji_bank_1.json
@@ -0,0 +1,42 @@
+[
+    [
+        "打",
+        "ダ ダアス",
+        "う.つ う.ち- ぶ.つ",
+        "ktag1 ktag2",
+        [
+            "meaning1",
+            "meaning2",
+            "meaning3",
+            "meaning4",
+            "meaning5"
+        ],
+        {
+            "kstat1": "1",
+            "kstat2": "2",
+            "kstat3": "3",
+            "kstat4": "4",
+            "kstat5": "5"
+        }
+    ],
+    [
+        "込",
+        "",
+        "-こ.む こ.む こ.み -こ.み こ.める",
+        "ktag1 ktag2",
+        [
+            "meaning1",
+            "meaning2",
+            "meaning3",
+            "meaning4",
+            "meaning5"
+        ],
+        {
+            "kstat1": "1",
+            "kstat2": "2",
+            "kstat3": "3",
+            "kstat4": "4",
+            "kstat5": "5"
+        }
+    ]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/kanji_meta_bank_1.json b/test/data/dictionaries/valid-dictionary1/kanji_meta_bank_1.json
new file mode 100644
index 00000000..73e75b8a
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/kanji_meta_bank_1.json
@@ -0,0 +1,4 @@
+[
+    ["打", "freq", 1],
+    ["込", "freq", 2]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/tag_bank_1.json b/test/data/dictionaries/valid-dictionary1/tag_bank_1.json
new file mode 100644
index 00000000..109ad395
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/tag_bank_1.json
@@ -0,0 +1,7 @@
+[
+    ["tag1", "category1", 0, "tag1 notes", 0],
+    ["tag2", "category2", 0, "tag2 notes", 0],
+    ["tag3", "category3", 0, "tag3 notes", 0],
+    ["tag4", "category4", 0, "tag4 notes", 0],
+    ["tag5", "category5", 0, "tag5 notes", 0]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/tag_bank_2.json b/test/data/dictionaries/valid-dictionary1/tag_bank_2.json
new file mode 100644
index 00000000..5e7936b3
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/tag_bank_2.json
@@ -0,0 +1,9 @@
+[
+    ["ktag1", "kcategory1", 0, "ktag1 notes", 0],
+    ["ktag2", "kcategory2", 0, "ktag2 notes", 0],
+    ["kstat1", "kcategory3", 0, "kstat1 notes", 0],
+    ["kstat2", "kcategory4", 0, "kstat2 notes", 0],
+    ["kstat3", "kcategory5", 0, "kstat3 notes", 0],
+    ["kstat4", "kcategory6", 0, "kstat4 notes", 0],
+    ["kstat5", "kcategory7", 0, "kstat5 notes", 0]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/term_bank_1.json b/test/data/dictionaries/valid-dictionary1/term_bank_1.json
new file mode 100644
index 00000000..755d9f6a
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/term_bank_1.json
@@ -0,0 +1,34 @@
+[
+    ["打", "だ", "tag1 tag2", "", 2, ["definition1a (打, だ)", "definition1b (打, だ)"], 1, "tag3 tag4 tag5"],
+    ["打", "ダース", "tag1 tag2", "", 1, ["definition1a (打, ダース)", "definition1b (打, ダース)"], 2, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 3, ["definition1a (打つ, うつ)", "definition1b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 4, ["definition2a (打つ, うつ)", "definition2b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 5, ["definition3a (打つ, うつ)", "definition3b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 6, ["definition4a (打つ, うつ)", "definition4b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 7, ["definition5a (打つ, うつ)", "definition5b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 8, ["definition6a (打つ, うつ)", "definition6b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 9, ["definition7a (打つ, うつ)", "definition7b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 10, ["definition8a (打つ, うつ)", "definition8b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 11, ["definition9a (打つ, うつ)", "definition9b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 12, ["definition10a (打つ, うつ)", "definition10b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 13, ["definition11a (打つ, うつ)", "definition11b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 14, ["definition12a (打つ, うつ)", "definition12b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 15, ["definition13a (打つ, うつ)", "definition13b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 16, ["definition14a (打つ, うつ)", "definition14b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "うつ", "tag1 tag2", "v5", 17, ["definition15a (打つ, うつ)", "definition15b (打つ, うつ)"], 3, "tag3 tag4 tag5"],
+    ["打つ", "ぶつ", "tag1 tag2", "v5", 18, ["definition1a (打つ, ぶつ)", "definition1b (打つ, ぶつ)"], 4, "tag3 tag4 tag5"],
+    ["打つ", "ぶつ", "tag1 tag2", "v5", 19, ["definition2a (打つ, ぶつ)", "definition2b (打つ, ぶつ)"], 4, "tag3 tag4 tag5"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 20, ["definition1a (打ち込む, うちこむ)", "definition1b (打ち込む, うちこむ)"], 5, "tag3 tag4 tag5"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 21, ["definition2a (打ち込む, うちこむ)", "definition2b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 22, ["definition3a (打ち込む, うちこむ)", "definition3b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 23, ["definition4a (打ち込む, うちこむ)", "definition4b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 24, ["definition5a (打ち込む, うちこむ)", "definition5b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 25, ["definition6a (打ち込む, うちこむ)", "definition6b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 26, ["definition7a (打ち込む, うちこむ)", "definition7b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 27, ["definition8a (打ち込む, うちこむ)", "definition8b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "うちこむ", "tag1 tag2", "v5", 28, ["definition9a (打ち込む, うちこむ)", "definition9b (打ち込む, うちこむ)"], 5, "tag5 tag6 tag7"],
+    ["打ち込む", "ぶちこむ", "tag1 tag2", "v5", 29, ["definition1a (打ち込む, ぶちこむ)", "definition1b (打ち込む, ぶちこむ)"], 6, "tag3 tag4 tag5"],
+    ["打ち込む", "ぶちこむ", "tag1 tag2", "v5", 30, ["definition2a (打ち込む, ぶちこむ)", "definition2b (打ち込む, ぶちこむ)"], 6, "tag3 tag4 tag5"],
+    ["打ち込む", "ぶちこむ", "tag1 tag2", "v5", 31, ["definition3a (打ち込む, ぶちこむ)", "definition3b (打ち込む, ぶちこむ)"], 6, "tag3 tag4 tag5"],
+    ["打ち込む", "ぶちこむ", "tag1 tag2", "v5", 32, ["definition4a (打ち込む, ぶちこむ)", "definition4b (打ち込む, ぶちこむ)"], 6, "tag3 tag4 tag5"]
+]
\ No newline at end of file
diff --git a/test/data/dictionaries/valid-dictionary1/term_meta_bank_1.json b/test/data/dictionaries/valid-dictionary1/term_meta_bank_1.json
new file mode 100644
index 00000000..78096502
--- /dev/null
+++ b/test/data/dictionaries/valid-dictionary1/term_meta_bank_1.json
@@ -0,0 +1,5 @@
+[
+    ["打", "freq", 1],
+    ["打つ", "freq", 2],
+    ["打ち込む", "freq", 3]
+]
\ No newline at end of file
diff --git a/test/dictionary-validate.js b/test/dictionary-validate.js
new file mode 100644
index 00000000..14eee2ed
--- /dev/null
+++ b/test/dictionary-validate.js
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const fs = require('fs');
+const path = require('path');
+const yomichanTest = require('./yomichan-test');
+
+const JSZip = yomichanTest.JSZip;
+const {JsonSchema} = yomichanTest.requireScript('ext/bg/js/json-schema.js', ['JsonSchema']);
+
+
+function readSchema(relativeFileName) {
+    const fileName = path.join(__dirname, relativeFileName);
+    const source = fs.readFileSync(fileName, {encoding: 'utf8'});
+    return JSON.parse(source);
+}
+
+
+async function validateDictionaryBanks(zip, fileNameFormat, schema) {
+    let index = 1;
+    while (true) {
+        const fileName = fileNameFormat.replace(/\?/, index);
+
+        const file = zip.files[fileName];
+        if (!file) { break; }
+
+        const data = JSON.parse(await file.async('string'));
+        JsonSchema.validate(data, schema);
+
+        ++index;
+    }
+}
+
+async function validateDictionary(archive, schemas) {
+    const indexFile = archive.files['index.json'];
+    if (!indexFile) {
+        throw new Error('No dictionary index found in archive');
+    }
+
+    const index = JSON.parse(await indexFile.async('string'));
+    const version = index.format || index.version;
+
+    JsonSchema.validate(index, schemas.index);
+
+    await validateDictionaryBanks(archive, 'term_bank_?.json', version === 1 ? schemas.termBankV1 : schemas.termBankV3);
+    await validateDictionaryBanks(archive, 'term_meta_bank_?.json', schemas.termMetaBankV3);
+    await validateDictionaryBanks(archive, 'kanji_bank_?.json', version === 1 ? schemas.kanjiBankV1 : schemas.kanjiBankV3);
+    await validateDictionaryBanks(archive, 'kanji_meta_bank_?.json', schemas.kanjiMetaBankV3);
+    await validateDictionaryBanks(archive, 'tag_bank_?.json', schemas.tagBankV3);
+}
+
+function getSchemas() {
+    return {
+        index: readSchema('../ext/bg/data/dictionary-index-schema.json'),
+        kanjiBankV1: readSchema('../ext/bg/data/dictionary-kanji-bank-v1-schema.json'),
+        kanjiBankV3: readSchema('../ext/bg/data/dictionary-kanji-bank-v3-schema.json'),
+        kanjiMetaBankV3: readSchema('../ext/bg/data/dictionary-kanji-meta-bank-v3-schema.json'),
+        tagBankV3: readSchema('../ext/bg/data/dictionary-tag-bank-v3-schema.json'),
+        termBankV1: readSchema('../ext/bg/data/dictionary-term-bank-v1-schema.json'),
+        termBankV3: readSchema('../ext/bg/data/dictionary-term-bank-v3-schema.json'),
+        termMetaBankV3: readSchema('../ext/bg/data/dictionary-term-meta-bank-v3-schema.json')
+    };
+}
+
+
+async function main() {
+    const dictionaryFileNames = process.argv.slice(2);
+    if (dictionaryFileNames.length === 0) {
+        console.log([
+            'Usage:',
+            '  node dictionary-validate <dictionary-file-names>...'
+        ].join('\n'));
+        return;
+    }
+
+    const schemas = getSchemas();
+
+    for (const dictionaryFileName of dictionaryFileNames) {
+        try {
+            console.log(`Validating ${dictionaryFileName}...`);
+            const source = fs.readFileSync(dictionaryFileName);
+            const archive = await JSZip.loadAsync(source);
+            await validateDictionary(archive, schemas);
+            console.log('No issues found');
+        } catch (e) {
+            console.warn(e);
+        }
+    }
+}
+
+
+if (require.main === module) { main(); }
+
+
+module.exports = {
+    getSchemas,
+    validateDictionary
+};
diff --git a/test/schema-validate.js b/test/schema-validate.js
new file mode 100644
index 00000000..a4f2d94c
--- /dev/null
+++ b/test/schema-validate.js
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const fs = require('fs');
+const yomichanTest = require('./yomichan-test');
+
+const {JsonSchema} = yomichanTest.requireScript('ext/bg/js/json-schema.js', ['JsonSchema']);
+
+
+function main() {
+    const args = process.argv.slice(2);
+    if (args.length < 2) {
+        console.log([
+            'Usage:',
+            '  node schema-validate <schema-file-name> <data-file-names>...'
+        ].join('\n'));
+        return;
+    }
+
+    const schemaSource = fs.readFileSync(args[0], {encoding: 'utf8'});
+    const schema = JSON.parse(schemaSource);
+
+    for (const dataFileName of args.slice(1)) {
+        try {
+            console.log(`Validating ${dataFileName}...`);
+            const dataSource = fs.readFileSync(dataFileName, {encoding: 'utf8'});
+            const data = JSON.parse(dataSource);
+            JsonSchema.validate(data, schema);
+            console.log('No issues found');
+        } catch (e) {
+            console.warn(e);
+        }
+    }
+}
+
+
+if (require.main === module) { main(); }
diff --git a/test/test-database.js b/test/test-database.js
new file mode 100644
index 00000000..c2317881
--- /dev/null
+++ b/test/test-database.js
@@ -0,0 +1,935 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const fs = require('fs');
+const url = require('url');
+const path = require('path');
+const assert = require('assert');
+const yomichanTest = require('./yomichan-test');
+require('fake-indexeddb/auto');
+
+const chrome = {
+    runtime: {
+        onMessage: {
+            addListener() { /* NOP */ }
+        },
+        getURL(path2) {
+            return url.pathToFileURL(path.join(__dirname, '..', 'ext', path2.replace(/^\//, '')));
+        }
+    }
+};
+
+class XMLHttpRequest {
+    constructor() {
+        this._eventCallbacks = new Map();
+        this._url = '';
+        this._responseText = null;
+    }
+
+    overrideMimeType() {
+        // NOP
+    }
+
+    addEventListener(eventName, callback) {
+        let callbacks = this._eventCallbacks.get(eventName);
+        if (typeof callbacks === 'undefined') {
+            callbacks = [];
+            this._eventCallbacks.set(eventName, callbacks);
+        }
+        callbacks.push(callback);
+    }
+
+    open(action, url2) {
+        this._url = url2;
+    }
+
+    send() {
+        const filePath = url.fileURLToPath(this._url);
+        Promise.resolve()
+            .then(() => {
+                let source;
+                try {
+                    source = fs.readFileSync(filePath, {encoding: 'utf8'});
+                } catch (e) {
+                    this._trigger('error');
+                    return;
+                }
+                this._responseText = source;
+                this._trigger('load');
+            });
+    }
+
+    get responseText() {
+        return this._responseText;
+    }
+
+    _trigger(eventName, ...args) {
+        const callbacks = this._eventCallbacks.get(eventName);
+        if (typeof callbacks === 'undefined') { return; }
+
+        for (let i = 0, ii = callbacks.length; i < ii; ++i) {
+            callbacks[i](...args);
+        }
+    }
+}
+
+const {JsonSchema} = yomichanTest.requireScript('ext/bg/js/json-schema.js', ['JsonSchema']);
+const {dictFieldSplit, dictTagSanitize} = yomichanTest.requireScript('ext/bg/js/dictionary.js', ['dictFieldSplit', 'dictTagSanitize']);
+const {stringReverse, hasOwn} = yomichanTest.requireScript('ext/mixed/js/core.js', ['stringReverse', 'hasOwn'], {chrome});
+const {requestJson} = yomichanTest.requireScript('ext/bg/js/request.js', ['requestJson'], {XMLHttpRequest});
+
+const databaseGlobals = {
+    chrome,
+    JsonSchema,
+    requestJson,
+    stringReverse,
+    hasOwn,
+    dictFieldSplit,
+    dictTagSanitize,
+    indexedDB: global.indexedDB,
+    JSZip: yomichanTest.JSZip
+};
+databaseGlobals.window = databaseGlobals;
+const {Database} = yomichanTest.requireScript('ext/bg/js/database.js', ['Database'], databaseGlobals);
+
+
+function countTermsWithExpression(terms, expression) {
+    return terms.reduce((i, v) => (i + (v.expression === expression ? 1 : 0)), 0);
+}
+
+function countTermsWithReading(terms, reading) {
+    return terms.reduce((i, v) => (i + (v.reading === reading ? 1 : 0)), 0);
+}
+
+function countMetasWithMode(metas, mode) {
+    return metas.reduce((i, v) => (i + (v.mode === mode ? 1 : 0)), 0);
+}
+
+function countKanjiWithCharacter(kanji, character) {
+    return kanji.reduce((i, v) => (i + (v.character === character ? 1 : 0)), 0);
+}
+
+
+function clearDatabase(timeout) {
+    return new Promise((resolve, reject) => {
+        let timer = setTimeout(() => {
+            timer = null;
+            reject(new Error(`clearDatabase failed to resolve after ${timeout}ms`));
+        }, timeout);
+
+        (async () => {
+            const indexedDB = global.indexedDB;
+            for (const {name} of await indexedDB.databases()) {
+                await new Promise((resolve2, reject2) => {
+                    const request = indexedDB.deleteDatabase(name);
+                    request.onerror = (e) => reject2(e);
+                    request.onsuccess = () => resolve2();
+                });
+            }
+            if (timer !== null) {
+                clearTimeout(timer);
+            }
+            resolve();
+        })();
+    });
+}
+
+
+async function testDatabase1() {
+    // Load dictionary data
+    const testDictionary = yomichanTest.createTestDictionaryArchive('valid-dictionary1');
+    const testDictionarySource = await testDictionary.generateAsync({type: 'string'});
+    const testDictionaryIndex = JSON.parse(await testDictionary.files['index.json'].async('string'));
+
+    const title = testDictionaryIndex.title;
+    const titles = new Map([
+        [title, {priority: 0, allowSecondarySearches: false}]
+    ]);
+
+    // Setup iteration data
+    const iterations = [
+        {
+            cleanup: async () => {
+                // Test purge
+                await database.purge();
+                await testDatabaseEmpty1(database);
+            }
+        },
+        {
+            cleanup: async () => {
+                // Test deleteDictionary
+                let progressEvent = false;
+                await database.deleteDictionary(
+                    title,
+                    () => {
+                        progressEvent = true;
+                    },
+                    {rate: 1000}
+                );
+                assert.ok(progressEvent);
+
+                await testDatabaseEmpty1(database);
+            }
+        },
+        {
+            cleanup: async () => {}
+        }
+    ];
+
+    // Setup database
+    const database = new Database();
+    await database.prepare();
+
+    for (const {cleanup} of iterations) {
+        const expectedSummary = {
+            title,
+            revision: 'test',
+            sequenced: true,
+            version: 3,
+            prefixWildcardsSupported: true
+        };
+
+        // Import data
+        let progressEvent = false;
+        const {result, errors} = await database.importDictionary(
+            testDictionarySource,
+            () => {
+                progressEvent = true;
+            },
+            {prefixWildcardsSupported: true}
+        );
+        assert.deepStrictEqual(errors, []);
+        assert.deepStrictEqual(result, expectedSummary);
+        assert.ok(progressEvent);
+
+        // Get info summary
+        const info = await database.getDictionaryInfo();
+        assert.deepStrictEqual(info, [expectedSummary]);
+
+        // Get counts
+        const counts = await database.getDictionaryCounts(
+            info.map((v) => v.title),
+            true
+        );
+        assert.deepStrictEqual(counts, {
+            counts: [{kanji: 2, kanjiMeta: 2, terms: 32, termMeta: 3, tagMeta: 12}],
+            total: {kanji: 2, kanjiMeta: 2, terms: 32, termMeta: 3, tagMeta: 12}
+        });
+
+        // Test find* functions
+        await testFindTermsBulkTest1(database, titles);
+        await testTindTermsExactBulk1(database, titles);
+        await testFindTermsBySequenceBulk1(database, title);
+        await testFindTermMetaBulk1(database, titles);
+        await testFindKanjiBulk1(database, titles);
+        await testFindKanjiMetaBulk1(database, titles);
+        await testFindTagForTitle1(database, title);
+
+        // Cleanup
+        await cleanup();
+    }
+
+    await database.close();
+}
+
+async function testDatabaseEmpty1(database) {
+    const info = await database.getDictionaryInfo();
+    assert.deepStrictEqual(info, []);
+
+    const counts = await database.getDictionaryCounts([], true);
+    assert.deepStrictEqual(counts, {
+        counts: [],
+        total: {kanji: 0, kanjiMeta: 0, terms: 0, termMeta: 0, tagMeta: 0}
+    });
+}
+
+async function testFindTermsBulkTest1(database, titles) {
+    const data = [
+        {
+            inputs: [
+                {
+                    wildcard: null,
+                    termList: ['打', '打つ', '打ち込む']
+                },
+                {
+                    wildcard: null,
+                    termList: ['だ', 'ダース', 'うつ', 'ぶつ', 'うちこむ', 'ぶちこむ']
+                },
+                {
+                    wildcard: 'suffix',
+                    termList: ['打']
+                }
+            ],
+            expectedResults: {
+                total: 32,
+                expressions: [
+                    ['打', 2],
+                    ['打つ', 17],
+                    ['打ち込む', 13]
+                ],
+                readings: [
+                    ['だ', 1],
+                    ['ダース', 1],
+                    ['うつ', 15],
+                    ['ぶつ', 2],
+                    ['うちこむ', 9],
+                    ['ぶちこむ', 4]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    wildcard: null,
+                    termList: ['込む']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        },
+        {
+            inputs: [
+                {
+                    wildcard: 'prefix',
+                    termList: ['込む']
+                }
+            ],
+            expectedResults: {
+                total: 13,
+                expressions: [
+                    ['打ち込む', 13]
+                ],
+                readings: [
+                    ['うちこむ', 9],
+                    ['ぶちこむ', 4]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    wildcard: null,
+                    termList: []
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {termList, wildcard} of inputs) {
+            const results = await database.findTermsBulk(termList, titles, wildcard);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [expression, count] of expectedResults.expressions) {
+                assert.strictEqual(countTermsWithExpression(results, expression), count);
+            }
+            for (const [reading, count] of expectedResults.readings) {
+                assert.strictEqual(countTermsWithReading(results, reading), count);
+            }
+        }
+    }
+}
+
+async function testTindTermsExactBulk1(database, titles) {
+    const data = [
+        {
+            inputs: [
+                {
+                    termList: ['打', '打つ', '打ち込む'],
+                    readingList: ['だ', 'うつ', 'うちこむ']
+                }
+            ],
+            expectedResults: {
+                total: 25,
+                expressions: [
+                    ['打', 1],
+                    ['打つ', 15],
+                    ['打ち込む', 9]
+                ],
+                readings: [
+                    ['だ', 1],
+                    ['うつ', 15],
+                    ['うちこむ', 9]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['打', '打つ', '打ち込む'],
+                    readingList: ['だ?', 'うつ?', 'うちこむ?']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['打つ', '打つ'],
+                    readingList: ['うつ', 'ぶつ']
+                }
+            ],
+            expectedResults: {
+                total: 17,
+                expressions: [
+                    ['打つ', 17]
+                ],
+                readings: [
+                    ['うつ', 15],
+                    ['ぶつ', 2]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['打つ'],
+                    readingList: ['うちこむ']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: [],
+                    readingList: []
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {termList, readingList} of inputs) {
+            const results = await database.findTermsExactBulk(termList, readingList, titles);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [expression, count] of expectedResults.expressions) {
+                assert.strictEqual(countTermsWithExpression(results, expression), count);
+            }
+            for (const [reading, count] of expectedResults.readings) {
+                assert.strictEqual(countTermsWithReading(results, reading), count);
+            }
+        }
+    }
+}
+
+async function testFindTermsBySequenceBulk1(database, mainDictionary) {
+    const data = [
+        {
+            inputs: [
+                {
+                    sequenceList: [1, 2, 3, 4, 5, 6]
+                }
+            ],
+            expectedResults: {
+                total: 32,
+                expressions: [
+                    ['打', 2],
+                    ['打つ', 17],
+                    ['打ち込む', 13]
+                ],
+                readings: [
+                    ['だ', 1],
+                    ['ダース', 1],
+                    ['うつ', 15],
+                    ['ぶつ', 2],
+                    ['うちこむ', 9],
+                    ['ぶちこむ', 4]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [1]
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                expressions: [
+                    ['打', 1]
+                ],
+                readings: [
+                    ['だ', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [2]
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                expressions: [
+                    ['打', 1]
+                ],
+                readings: [
+                    ['ダース', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [3]
+                }
+            ],
+            expectedResults: {
+                total: 15,
+                expressions: [
+                    ['打つ', 15]
+                ],
+                readings: [
+                    ['うつ', 15]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [4]
+                }
+            ],
+            expectedResults: {
+                total: 2,
+                expressions: [
+                    ['打つ', 2]
+                ],
+                readings: [
+                    ['ぶつ', 2]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [5]
+                }
+            ],
+            expectedResults: {
+                total: 9,
+                expressions: [
+                    ['打ち込む', 9]
+                ],
+                readings: [
+                    ['うちこむ', 9]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [6]
+                }
+            ],
+            expectedResults: {
+                total: 4,
+                expressions: [
+                    ['打ち込む', 4]
+                ],
+                readings: [
+                    ['ぶちこむ', 4]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: [-1]
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        },
+        {
+            inputs: [
+                {
+                    sequenceList: []
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                expressions: [],
+                readings: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {sequenceList} of inputs) {
+            const results = await database.findTermsBySequenceBulk(sequenceList, mainDictionary);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [expression, count] of expectedResults.expressions) {
+                assert.strictEqual(countTermsWithExpression(results, expression), count);
+            }
+            for (const [reading, count] of expectedResults.readings) {
+                assert.strictEqual(countTermsWithReading(results, reading), count);
+            }
+        }
+    }
+}
+
+async function testFindTermMetaBulk1(database, titles) {
+    const data = [
+        {
+            inputs: [
+                {
+                    termList: ['打']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                modes: [
+                    ['freq', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['打つ']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                modes: [
+                    ['freq', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['打ち込む']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                modes: [
+                    ['freq', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    termList: ['?']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                modes: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {termList} of inputs) {
+            const results = await database.findTermMetaBulk(termList, titles);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [mode, count] of expectedResults.modes) {
+                assert.strictEqual(countMetasWithMode(results, mode), count);
+            }
+        }
+    }
+}
+
+async function testFindKanjiBulk1(database, titles) {
+    const data = [
+        {
+            inputs: [
+                {
+                    kanjiList: ['打']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                kanji: [
+                    ['打', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    kanjiList: ['込']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                kanji: [
+                    ['込', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    kanjiList: ['?']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                kanji: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {kanjiList} of inputs) {
+            const results = await database.findKanjiBulk(kanjiList, titles);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [kanji, count] of expectedResults.kanji) {
+                assert.strictEqual(countKanjiWithCharacter(results, kanji), count);
+            }
+        }
+    }
+}
+
+async function testFindKanjiMetaBulk1(database, titles) {
+    const data = [
+        {
+            inputs: [
+                {
+                    kanjiList: ['打']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                modes: [
+                    ['freq', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    kanjiList: ['込']
+                }
+            ],
+            expectedResults: {
+                total: 1,
+                modes: [
+                    ['freq', 1]
+                ]
+            }
+        },
+        {
+            inputs: [
+                {
+                    kanjiList: ['?']
+                }
+            ],
+            expectedResults: {
+                total: 0,
+                modes: []
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {kanjiList} of inputs) {
+            const results = await database.findKanjiMetaBulk(kanjiList, titles);
+            assert.strictEqual(results.length, expectedResults.total);
+            for (const [mode, count] of expectedResults.modes) {
+                assert.strictEqual(countMetasWithMode(results, mode), count);
+            }
+        }
+    }
+}
+
+async function testFindTagForTitle1(database, title) {
+    const data = [
+        {
+            inputs: [
+                {
+                    name: 'tag1'
+                }
+            ],
+            expectedResults: {
+                value: {category: 'category1', dictionary: title, name: 'tag1', notes: 'tag1 notes', order: 0, score: 0}
+            }
+        },
+        {
+            inputs: [
+                {
+                    name: 'ktag1'
+                }
+            ],
+            expectedResults: {
+                value: {category: 'kcategory1', dictionary: title, name: 'ktag1', notes: 'ktag1 notes', order: 0, score: 0}
+            }
+        },
+        {
+            inputs: [
+                {
+                    name: 'kstat1'
+                }
+            ],
+            expectedResults: {
+                value: {category: 'kcategory3', dictionary: title, name: 'kstat1', notes: 'kstat1 notes', order: 0, score: 0}
+            }
+        },
+        {
+            inputs: [
+                {
+                    name: 'invalid'
+                }
+            ],
+            expectedResults: {
+                value: null
+            }
+        }
+    ];
+
+    for (const {inputs, expectedResults} of data) {
+        for (const {name} of inputs) {
+            const result = await database.findTagForTitle(name, title);
+            assert.deepStrictEqual(result, expectedResults.value);
+        }
+    }
+}
+
+
+async function testDatabase2() {
+    // Load dictionary data
+    const testDictionary = yomichanTest.createTestDictionaryArchive('valid-dictionary1');
+    const testDictionarySource = await testDictionary.generateAsync({type: 'string'});
+    const testDictionaryIndex = JSON.parse(await testDictionary.files['index.json'].async('string'));
+
+    const title = testDictionaryIndex.title;
+    const titles = new Map([
+        [title, {priority: 0, allowSecondarySearches: false}]
+    ]);
+
+    // Setup database
+    const database = new Database();
+
+    // Error: not prepared
+    await assert.rejects(async () => await database.purge());
+    await assert.rejects(async () => await database.deleteDictionary(title, () => {}, {}));
+    await assert.rejects(async () => await database.findTermsBulk(['?'], titles, null));
+    await assert.rejects(async () => await database.findTermsExactBulk(['?'], ['?'], titles));
+    await assert.rejects(async () => await database.findTermsBySequenceBulk([1], title));
+    await assert.rejects(async () => await database.findTermMetaBulk(['?'], titles));
+    await assert.rejects(async () => await database.findTermMetaBulk(['?'], titles));
+    await assert.rejects(async () => await database.findKanjiBulk(['?'], titles));
+    await assert.rejects(async () => await database.findKanjiMetaBulk(['?'], titles));
+    await assert.rejects(async () => await database.findTagForTitle('tag', title));
+    await assert.rejects(async () => await database.getDictionaryInfo());
+    await assert.rejects(async () => await database.getDictionaryCounts(titles, true));
+    await assert.rejects(async () => await database.importDictionary(testDictionarySource, () => {}, {}));
+
+    await database.prepare();
+
+    // Error: already prepared
+    await assert.rejects(async () => await database.prepare());
+
+    await database.importDictionary(testDictionarySource, () => {}, {});
+
+    // Error: dictionary already imported
+    await assert.rejects(async () => await database.importDictionary(testDictionarySource, () => {}, {}));
+
+    await database.close();
+}
+
+
+async function testDatabase3() {
+    const invalidDictionaries = [
+        'invalid-dictionary1',
+        'invalid-dictionary2',
+        'invalid-dictionary3',
+        'invalid-dictionary4',
+        'invalid-dictionary5',
+        'invalid-dictionary6'
+    ];
+
+    // Setup database
+    const database = new Database();
+    await database.prepare();
+
+    for (const invalidDictionary of invalidDictionaries) {
+        const testDictionary = yomichanTest.createTestDictionaryArchive(invalidDictionary);
+        const testDictionarySource = await testDictionary.generateAsync({type: 'string'});
+
+        let error = null;
+        try {
+            await database.importDictionary(testDictionarySource, () => {}, {});
+        } catch (e) {
+            error = e;
+        }
+
+        if (error === null) {
+            assert.ok(false, `Expected an error while importing ${invalidDictionary}`);
+        } else {
+            const prefix = 'Dictionary has invalid data';
+            const message = error.message;
+            assert.ok(typeof message, 'string');
+            assert.ok(message.startsWith(prefix), `Expected error message to start with '${prefix}': ${message}`);
+        }
+    }
+
+    await database.close();
+}
+
+
+async function main() {
+    const clearTimeout = 5000;
+    try {
+        await testDatabase1();
+        await clearDatabase(clearTimeout);
+
+        await testDatabase2();
+        await clearDatabase(clearTimeout);
+
+        await testDatabase3();
+        await clearDatabase(clearTimeout);
+    } catch (e) {
+        console.log(e);
+        process.exit(-1);
+        throw e;
+    }
+}
+
+
+if (require.main === module) { main(); }
diff --git a/test/test-dictionary.js b/test/test-dictionary.js
new file mode 100644
index 00000000..74f9e62b
--- /dev/null
+++ b/test/test-dictionary.js
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const yomichanTest = require('./yomichan-test');
+const dictionaryValidate = require('./dictionary-validate');
+
+
+async function main() {
+    const dictionaries = [
+        {name: 'valid-dictionary1', valid: true},
+        {name: 'invalid-dictionary1', valid: false},
+        {name: 'invalid-dictionary2', valid: false},
+        {name: 'invalid-dictionary3', valid: false},
+        {name: 'invalid-dictionary4', valid: false},
+        {name: 'invalid-dictionary5', valid: false},
+        {name: 'invalid-dictionary6', valid: false}
+    ];
+
+    const schemas = dictionaryValidate.getSchemas();
+
+    for (const {name, valid} of dictionaries) {
+        const archive = yomichanTest.createTestDictionaryArchive(name);
+
+        let error = null;
+        try {
+            await dictionaryValidate.validateDictionary(archive, schemas);
+        } catch (e) {
+            error = e;
+        }
+
+        if (valid) {
+            if (error !== null) {
+                throw error;
+            }
+        } else {
+            if (error === null) {
+                throw new Error(`Expected dictionary ${name} to be invalid`);
+            }
+        }
+    }
+}
+
+
+if (require.main === module) { main(); }
diff --git a/test/test-schema.js b/test/test-schema.js
new file mode 100644
index 00000000..f4612f86
--- /dev/null
+++ b/test/test-schema.js
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const assert = require('assert');
+const yomichanTest = require('./yomichan-test');
+
+const {JsonSchema} = yomichanTest.requireScript('ext/bg/js/json-schema.js', ['JsonSchema']);
+
+
+function testValidate1() {
+    const schema = {
+        allOf: [
+            {
+                type: 'number'
+            },
+            {
+                anyOf: [
+                    {minimum: 10, maximum: 100},
+                    {minimum: -100, maximum: -10}
+                ]
+            },
+            {
+                oneOf: [
+                    {multipleOf: 3},
+                    {multipleOf: 5}
+                ]
+            },
+            {
+                not: [
+                    {multipleOf: 20}
+                ]
+            }
+        ]
+    };
+
+    const schemaValidate = (value) => {
+        try {
+            JsonSchema.validate(value, schema);
+            return true;
+        } catch (e) {
+            return false;
+        }
+    };
+
+    const jsValidate = (value) => {
+        return (
+            typeof value === 'number' &&
+            (
+                (value >= 10 && value <= 100) ||
+                (value >= -100 && value <= -10)
+            ) &&
+            (
+                (
+                    (value % 3) === 0 ||
+                    (value % 5) === 0
+                ) &&
+                (value % 15) !== 0
+            ) &&
+            (value % 20) !== 0
+        );
+    };
+
+    for (let i = -111; i <= 111; i++) {
+        const actual = schemaValidate(i, schema);
+        const expected = jsValidate(i);
+        assert.strictEqual(actual, expected);
+    }
+}
+
+
+function testGetValidValueOrDefault1() {
+    // Test value defaulting on objects with additionalProperties=false
+    const schema = {
+        type: 'object',
+        required: ['test'],
+        properties: {
+            test: {
+                type: 'string',
+                default: 'default'
+            }
+        },
+        additionalProperties: false
+    };
+
+    const testData = [
+        [
+            void 0,
+            {test: 'default'}
+        ],
+        [
+            null,
+            {test: 'default'}
+        ],
+        [
+            0,
+            {test: 'default'}
+        ],
+        [
+            '',
+            {test: 'default'}
+        ],
+        [
+            [],
+            {test: 'default'}
+        ],
+        [
+            {},
+            {test: 'default'}
+        ],
+        [
+            {test: 'value'},
+            {test: 'value'}
+        ],
+        [
+            {test2: 'value2'},
+            {test: 'default'}
+        ],
+        [
+            {test: 'value', test2: 'value2'},
+            {test: 'value'}
+        ]
+    ];
+
+    for (const [value, expected] of testData) {
+        const actual = JsonSchema.getValidValueOrDefault(schema, value);
+        assert.deepStrictEqual(actual, expected);
+    }
+}
+
+function testGetValidValueOrDefault2() {
+    // Test value defaulting on objects with additionalProperties=true
+    const schema = {
+        type: 'object',
+        required: ['test'],
+        properties: {
+            test: {
+                type: 'string',
+                default: 'default'
+            }
+        },
+        additionalProperties: true
+    };
+
+    const testData = [
+        [
+            {},
+            {test: 'default'}
+        ],
+        [
+            {test: 'value'},
+            {test: 'value'}
+        ],
+        [
+            {test2: 'value2'},
+            {test: 'default', test2: 'value2'}
+        ],
+        [
+            {test: 'value', test2: 'value2'},
+            {test: 'value', test2: 'value2'}
+        ]
+    ];
+
+    for (const [value, expected] of testData) {
+        const actual = JsonSchema.getValidValueOrDefault(schema, value);
+        assert.deepStrictEqual(actual, expected);
+    }
+}
+
+function testGetValidValueOrDefault3() {
+    // Test value defaulting on objects with additionalProperties={schema}
+    const schema = {
+        type: 'object',
+        required: ['test'],
+        properties: {
+            test: {
+                type: 'string',
+                default: 'default'
+            }
+        },
+        additionalProperties: {
+            type: 'number',
+            default: 10
+        }
+    };
+
+    const testData = [
+        [
+            {},
+            {test: 'default'}
+        ],
+        [
+            {test: 'value'},
+            {test: 'value'}
+        ],
+        [
+            {test2: 'value2'},
+            {test: 'default', test2: 10}
+        ],
+        [
+            {test: 'value', test2: 'value2'},
+            {test: 'value', test2: 10}
+        ],
+        [
+            {test2: 2},
+            {test: 'default', test2: 2}
+        ],
+        [
+            {test: 'value', test2: 2},
+            {test: 'value', test2: 2}
+        ],
+        [
+            {test: 'value', test2: 2, test3: null},
+            {test: 'value', test2: 2, test3: 10}
+        ],
+        [
+            {test: 'value', test2: 2, test3: void 0},
+            {test: 'value', test2: 2, test3: 10}
+        ]
+    ];
+
+    for (const [value, expected] of testData) {
+        const actual = JsonSchema.getValidValueOrDefault(schema, value);
+        assert.deepStrictEqual(actual, expected);
+    }
+}
+
+
+function main() {
+    testValidate1();
+    testGetValidValueOrDefault1();
+    testGetValidValueOrDefault2();
+    testGetValidValueOrDefault3();
+}
+
+
+if (require.main === module) { main(); }
diff --git a/test/yomichan-test.js b/test/yomichan-test.js
new file mode 100644
index 00000000..78bfb9c6
--- /dev/null
+++ b/test/yomichan-test.js
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2020  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+
+let JSZip = null;
+
+function requireScript(fileName, exportNames, variables) {
+    const absoluteFileName = path.join(__dirname, '..', fileName);
+    const source = fs.readFileSync(absoluteFileName, {encoding: 'utf8'});
+    const exportNamesString = Array.isArray(exportNames) ? exportNames.join(',') : '';
+    const variablesArgumentName = '__variables__';
+    let variableString = '';
+    if (typeof variables === 'object' && variables !== null) {
+        variableString = Object.keys(variables).join(',');
+        variableString = `const {${variableString}} = ${variablesArgumentName};`;
+    }
+    return Function(variablesArgumentName, `'use strict';${variableString}${source}\n;return {${exportNamesString}};`)(variables);
+}
+
+function getJSZip() {
+    if (JSZip === null) {
+        process.noDeprecation = true; // Suppress a warning about JSZip
+        JSZip = require(path.join(__dirname, '../ext/mixed/lib/jszip.min.js'));
+        process.noDeprecation = false;
+    }
+    return JSZip;
+}
+
+function createTestDictionaryArchive(dictionary, dictionaryName) {
+    const dictionaryDirectory = path.join(__dirname, 'data', 'dictionaries', dictionary);
+    const fileNames = fs.readdirSync(dictionaryDirectory);
+
+    const archive = new (getJSZip())();
+
+    for (const fileName of fileNames) {
+        const source = fs.readFileSync(path.join(dictionaryDirectory, fileName), {encoding: 'utf8'});
+        const json = JSON.parse(source);
+        if (fileName === 'index.json' && typeof dictionaryName === 'string') {
+            json.title = dictionaryName;
+        }
+        archive.file(fileName, JSON.stringify(json, null, 0));
+    }
+
+    return archive;
+}
+
+
+module.exports = {
+    requireScript,
+    createTestDictionaryArchive,
+    get JSZip() { return getJSZip(); }
+};