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any-map.test.ts
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any-map.test.ts
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/// <reference lib="esnext" />
import { test, describe } from './setup';
import { AnyMap, encodedMappings, decodedMappings } from '../src/trace-mapping';
import type { SectionedSourceMap, SourceMapSegment } from '../src/trace-mapping';
describe('AnyMap', () => {
const map: SectionedSourceMap = {
version: 3,
file: 'sectioned.js',
sections: [
{
offset: { line: 1, column: 1 },
map: {
version: 3,
sections: [
{
offset: { line: 0, column: 1 },
map: {
version: 3,
names: ['first'],
sources: ['first.js'],
sourcesContent: ['firstsource'],
mappings: 'AAAAA,CAAC',
},
},
{
offset: { line: 0, column: 2 },
map: {
version: 3,
names: ['second'],
sources: ['second.js'],
sourcesContent: ['secondsource'],
mappings: 'AAAAA;AAAA',
},
},
],
},
},
{
offset: { line: 2, column: 0 },
map: {
version: 3,
sections: [
{
offset: { line: 0, column: 0 },
map: {
version: 3,
names: ['third'],
sources: ['third.js'],
sourcesContent: ['thirdsource'],
sourceRoot: 'nested',
mappings: 'AAAAA,CAAA;AAAA',
},
},
{
offset: { line: 0, column: 1 },
map: {
version: 3,
names: [],
sources: ['fourth.js'],
sourcesContent: ['fourthsource'],
mappings: 'AAAA',
},
},
],
},
},
],
};
describe('map properties', () => {
test('version', (t) => {
const tracer = new AnyMap(map);
t.is(tracer.version, map.version);
});
test('file', (t) => {
const tracer = new AnyMap(map);
t.is(tracer.file, map.file);
});
test('sourceRoot', (t) => {
const tracer = new AnyMap(map);
t.is(tracer.sourceRoot, undefined);
});
test('sources', (t) => {
const tracer = new AnyMap(map);
t.deepEqual(tracer.sources, ['first.js', 'second.js', 'nested/third.js', 'fourth.js']);
});
test('names', (t) => {
const tracer = new AnyMap(map);
t.deepEqual(tracer.names, ['first', 'second', 'third']);
});
test('encodedMappings', (t) => {
const tracer = new AnyMap(map);
t.is(encodedMappings(tracer), ';EAAAA,CCAAC;ACAAC,CCAA');
});
test('decodedMappings', (t) => {
const tracer = new AnyMap(map);
t.deepEqual(decodedMappings(tracer), [
[],
[
[2, 0, 0, 0, 0],
[3, 1, 0, 0, 1],
],
[
[0, 2, 0, 0, 2],
[1, 3, 0, 0],
],
]);
});
test('sourcesContent', (t) => {
const tracer = new AnyMap(map);
t.deepEqual(tracer.sourcesContent, [
'firstsource',
'secondsource',
'thirdsource',
'fourthsource',
]);
});
});
describe('typescript readonly type', () => {
test('decoded source map', (t) => {
// This is a TS lint test, not a real one.
t.pass();
const decodedMap = {
version: 3 as const,
sources: ['input.js'] as readonly string[],
names: [] as readonly string[],
mappings: [] as readonly SourceMapSegment[][],
sourcesContent: [] as readonly string[],
};
new AnyMap(decodedMap);
});
});
});