Add tests

1 files changed, 234 insertions, 0 deletions

diff --git a/test/test-text-source-map.js b/test/test-text-source-map.js
new file mode 100644
index 00000000..25bd8fc2
--- /dev/null
+++ b/test/test-text-source-map.js
@@ -0,0 +1,234 @@
+/*
+ * 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 {VM} = require('./yomichan-vm');
+
+const vm = new VM();
+vm.execute(['bg/js/text-source-map.js']);
+const TextSourceMap = vm.get('TextSourceMap');
+
+
+function testSource() {
+    const data = [
+        ['source1'],
+        ['source2'],
+        ['source3']
+    ];
+
+    for (const [source] of data) {
+        const sourceMap = new TextSourceMap(source);
+        assert.strictEqual(source, sourceMap.source);
+    }
+}
+
+function testEquals() {
+    const data = [
+        [['source1', null], ['source1', null], true],
+        [['source2', null], ['source2', null], true],
+        [['source3', null], ['source3', null], true],
+
+        [['source1', [1, 1, 1, 1, 1, 1, 1]], ['source1', null], true],
+        [['source2', [1, 1, 1, 1, 1, 1, 1]], ['source2', null], true],
+        [['source3', [1, 1, 1, 1, 1, 1, 1]], ['source3', null], true],
+
+        [['source1', null], ['source1', [1, 1, 1, 1, 1, 1, 1]], true],
+        [['source2', null], ['source2', [1, 1, 1, 1, 1, 1, 1]], true],
+        [['source3', null], ['source3', [1, 1, 1, 1, 1, 1, 1]], true],
+
+        [['source1', [1, 1, 1, 1, 1, 1, 1]], ['source1', [1, 1, 1, 1, 1, 1, 1]], true],
+        [['source2', [1, 1, 1, 1, 1, 1, 1]], ['source2', [1, 1, 1, 1, 1, 1, 1]], true],
+        [['source3', [1, 1, 1, 1, 1, 1, 1]], ['source3', [1, 1, 1, 1, 1, 1, 1]], true],
+
+        [['source1', [1, 2, 1, 3]], ['source1', [1, 2, 1, 3]], true],
+        [['source2', [1, 2, 1, 3]], ['source2', [1, 2, 1, 3]], true],
+        [['source3', [1, 2, 1, 3]], ['source3', [1, 2, 1, 3]], true],
+
+        [['source1', [1, 3, 1, 2]], ['source1', [1, 2, 1, 3]], false],
+        [['source2', [1, 3, 1, 2]], ['source2', [1, 2, 1, 3]], false],
+        [['source3', [1, 3, 1, 2]], ['source3', [1, 2, 1, 3]], false],
+
+        [['source1', [1, 1, 1, 1, 1, 1, 1]], ['source4', [1, 1, 1, 1, 1, 1, 1]], false],
+        [['source2', [1, 1, 1, 1, 1, 1, 1]], ['source5', [1, 1, 1, 1, 1, 1, 1]], false],
+        [['source3', [1, 1, 1, 1, 1, 1, 1]], ['source6', [1, 1, 1, 1, 1, 1, 1]], false]
+    ];
+
+    for (const [[source1, mapping1], [source2, mapping2], expectedEquals] of data) {
+        const sourceMap1 = new TextSourceMap(source1, mapping1);
+        const sourceMap2 = new TextSourceMap(source2, mapping2);
+        assert.ok(sourceMap1.equals(sourceMap1));
+        assert.ok(sourceMap2.equals(sourceMap2));
+        assert.strictEqual(sourceMap1.equals(sourceMap2), expectedEquals);
+    }
+}
+
+function testGetSourceLength() {
+    const data = [
+        [['source', [1, 1, 1, 1, 1, 1]], 1, 1],
+        [['source', [1, 1, 1, 1, 1, 1]], 2, 2],
+        [['source', [1, 1, 1, 1, 1, 1]], 3, 3],
+        [['source', [1, 1, 1, 1, 1, 1]], 4, 4],
+        [['source', [1, 1, 1, 1, 1, 1]], 5, 5],
+        [['source', [1, 1, 1, 1, 1, 1]], 6, 6],
+
+        [['source', [2, 2, 2]], 1, 2],
+        [['source', [2, 2, 2]], 2, 4],
+        [['source', [2, 2, 2]], 3, 6],
+
+        [['source', [3, 3]], 1, 3],
+        [['source', [3, 3]], 2, 6],
+
+        [['source', [6, 6]], 1, 6]
+    ];
+
+    for (const [[source, mapping], finalLength, expectedValue] of data) {
+        const sourceMap = new TextSourceMap(source, mapping);
+        assert.strictEqual(sourceMap.getSourceLength(finalLength), expectedValue);
+    }
+}
+
+function testCombineInsert() {
+    const data = [
+        // No operations
+        [
+            ['source', null],
+            ['source', [1, 1, 1, 1, 1, 1]],
+            []
+        ],
+
+        // Combine
+        [
+            ['source', null],
+            ['source', [3, 1, 1, 1]],
+            [
+                ['combine', 0, 2]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [1, 1, 1, 3]],
+            [
+                ['combine', 3, 2]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [3, 3]],
+            [
+                ['combine', 0, 2],
+                ['combine', 1, 2]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [3, 3]],
+            [
+                ['combine', 3, 2],
+                ['combine', 0, 2]
+            ]
+        ],
+
+        // Insert
+        [
+            ['source', null],
+            ['source', [0, 1, 1, 1, 1, 1, 1]],
+            [
+                ['insert', 0, 0]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [1, 1, 1, 1, 1, 1, 0]],
+            [
+                ['insert', 6, 0]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [0, 1, 1, 1, 1, 1, 1, 0]],
+            [
+                ['insert', 0, 0],
+                ['insert', 7, 0]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [0, 1, 1, 1, 1, 1, 1, 0]],
+            [
+                ['insert', 6, 0],
+                ['insert', 0, 0]
+            ]
+        ],
+
+        // Mixed
+        [
+            ['source', null],
+            ['source', [3, 0, 3]],
+            [
+                ['combine', 0, 2],
+                ['insert', 1, 0],
+                ['combine', 2, 2]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [3, 0, 3]],
+            [
+                ['combine', 0, 2],
+                ['combine', 1, 2],
+                ['insert', 1, 0]
+            ]
+        ],
+        [
+            ['source', null],
+            ['source', [3, 0, 3]],
+            [
+                ['insert', 3, 0],
+                ['combine', 0, 2],
+                ['combine', 2, 2]
+            ]
+        ]
+    ];
+
+    for (const [[source, mapping], [expectedSource, expectedMapping], operations] of data) {
+        const sourceMap = new TextSourceMap(source, mapping);
+        const expectedSourceMap = new TextSourceMap(expectedSource, expectedMapping);
+        for (const [operation, ...args] of operations) {
+            switch (operation) {
+                case 'combine':
+                    sourceMap.combine(...args);
+                    break;
+                case 'insert':
+                    sourceMap.insert(...args);
+                    break;
+            }
+        }
+        assert.ok(sourceMap.equals(expectedSourceMap));
+    }
+}
+
+
+function main() {
+    testSource();
+    testEquals();
+    testGetSourceLength();
+    testCombineInsert();
+}
+
+
+if (require.main === module) { main(); }