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fix: do not output undefined when sourceRoot is unavailable #1036

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merged 1 commit into from Jan 3, 2020
Merged

fix: do not output undefined when sourceRoot is unavailable #1036

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2 changes: 1 addition & 1 deletion src/runtime/api.js
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Expand Up @@ -58,7 +58,7 @@ function cssWithMappingToString(item, useSourceMap) {
if (useSourceMap && typeof btoa === 'function') {
const sourceMapping = toComment(cssMapping);
const sourceURLs = cssMapping.sources.map(
(source) => `/*# sourceURL=${cssMapping.sourceRoot}${source} */`
(source) => `/*# sourceURL=${cssMapping.sourceRoot || ''}${source} */`
);

return [content]
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8 changes: 7 additions & 1 deletion test/runtime/__snapshots__/api.test.js.snap
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Expand Up @@ -8,6 +8,12 @@ exports[`api should toString a single module 1`] = `"body { a: 1; }"`;

exports[`api should toString multiple modules 1`] = `"body { b: 2; }body { a: 1; }"`;

exports[`api should toString with a source map without "sourceRoot" 1`] = `
"body { a: 1; }
/*# sourceURL=./path/to/test.scss */
/*# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC5zY3NzIiwic291cmNlcyI6WyIuL3BhdGgvdG8vdGVzdC5zY3NzIl0sIm1hcHBpbmdzIjoiQUFBQTsifQ== */"
`;

exports[`api should toString with media query 1`] = `"body { b: 2; }body { c: 3; }body { b: 2; }@media print {body { b: 2; }}@media print {body { d: 4; }}@media screen {body { a: 1; }}"`;

exports[`api should toString with source mapping 1`] = `
Expand All @@ -16,4 +22,4 @@ exports[`api should toString with source mapping 1`] = `
/*# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC5zY3NzIiwic291cmNlcyI6WyIuL3BhdGgvdG8vdGVzdC5zY3NzIl0sIm1hcHBpbmdzIjoiQUFBQTsiLCJzb3VyY2VSb290Ijoid2VicGFjazovLyJ9 */"
`;

exports[`api should toString without source mapping if btoa not avalibale 1`] = `"body { a: 1; }"`;
exports[`api should toString without source mapping if btoa not available 1`] = `"body { a: 1; }"`;
19 changes: 18 additions & 1 deletion test/runtime/api.test.js
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Expand Up @@ -101,7 +101,7 @@ describe('api', () => {
expect(m.toString()).toMatchSnapshot();
});

it('should toString without source mapping if btoa not avalibale', () => {
it('should toString without source mapping if btoa not available', () => {
global.btoa = null;

const m = api(true);
Expand All @@ -120,4 +120,21 @@ describe('api', () => {

expect(m.toString()).toMatchSnapshot();
});

it.only('should toString with a source map without "sourceRoot"', () => {
const m = api(true);

m.push([
1,
'body { a: 1; }',
'',
{
file: 'test.scss',
sources: ['./path/to/test.scss'],
mappings: 'AAAA;',
},
]);

expect(m.toString()).toMatchSnapshot();
});
});