Vihren Atlas

snapshot.ts ×12

Code frontier

unlabeled · c_a45915b4bc6e

100 tests · 5641 LOC · 28 files · introduces 0 tests · 37 LOC · 1 file

Introduces — evidence that enters the hierarchy at this concept

Code
12 ranges37 lines · 1 files
Tests
0 tests

Contains — complete concept membership

All code (extent)
860 ranges5641 lines · 28 files · Browse complete extent
All tests (intent)
100 testsBrowse complete intent

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Introduced tests

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Introduced code

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1 file ranked by introduced lines: 37 introduced LOC across 12 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/base/test/common/snapshot.ts 37 introduced LOC · 12 ranges

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37
38 constructor(private readonly test: Mocha.Test | undefined) {
39 > if (!test) { snapshot.ts
40 throw new Error('assertSnapshot can only be used in a test');
41 }
42 > snapshot.ts
43 > if (!test.file) {
44 throw new Error('currentTest.file is not set, please open an issue with the test you\'re trying to run');
45 }
46 > snapshot.ts
47 > const src = URI.joinPath(FileAccess.asFileUri(''), '../src');
48 > const parts = test.file.split(/[/\\]/g);
49 >
50 > this.namePrefix = sanitizeName(test.fullTitle()) + '.';
51 > this.snapshotsDir = URI.joinPath(src, ...[...parts.slice(0, -1), '__snapshots__']);
52 > }
53
54 public async assert(value: unknown, options?: ISnapshotOptions) {
55 > const originalStack = new Error().stack!; // save to make the stack nicer on failure snapshot.ts
56 > const nameOrIndex = (options?.name ? sanitizeName(options.name) : this.nextIndex++);
57 > const fileName = this.namePrefix + nameOrIndex + '.' + (options?.extension || 'snap');
58 > this.usedNames.add(fileName);
59 >
60 > const fpath = URI.joinPath(this.snapshotsDir, fileName).fsPath;
61 > const actual = formatValue(value);
62 > let expected: string;
63 > try {
64 > expected = await __readFileInTests(fpath);
65 > } catch {
66 console.info(`Creating new snapshot in: ${fpath}`);
67 await __mkdirPInTests(this.snapshotsDir.fsPath);
69 return;
70 }
71 > snapshot.ts
72 > if (normalizeCrlf(expected) !== normalizeCrlf(actual)) {
73 await __writeFileInTests(fpath + '.actual', actual);
74 const err: any = new Error(`Snapshot #${nameOrIndex} does not match expected output`);
84 throw err;
85 }
86 > } snapshot.ts
87
88 public async removeOldSnapshots() {
99 const debugDescriptionSymbol = Symbol.for('debug.description');
100
101 > function formatValue(value: unknown, level = 0, seen: unknown[] = []): string { snapshot.ts
102 > switch (typeof value) {
103 > case 'bigint':
104 > case 'boolean':
105 > case 'number':
106 > case 'symbol':
107 > case 'undefined':
108 return String(value);
109 > case 'string': snapshot.ts
110 return level === 0 ? value : JSON.stringify(value);
111 > case 'function': snapshot.ts
112 return `[Function ${value.name}]`;
113 > case 'object': { snapshot.ts
114 if (value === null) {
115 return 'null';
151 : `{ ${lines.join(',\n')} }`);
152 }
153 > default: snapshot.ts
154 throw new Error(`Unknown type ${value}`);
155 > } snapshot.ts
156 > }
157
158 setup(function () {

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