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test(typescript): Add test for optional chaining #207

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Feb 13, 2020
Merged

test(typescript): Add test for optional chaining #207

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38abcee
test(typescript): Add test for optional chaining
bennypowers Feb 10, 2020
95f6a20
Skip failing test for now
NotWoods Feb 13, 2020
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8 changes: 8 additions & 0 deletions packages/typescript/test/fixtures/optional-chaining/main.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
interface OC {
a: number;
b?: {
c?: number;
};
}
const o = { a: 1 } as OC;
export default o.b?.c ?? 'NOT FOUND';
10 changes: 10 additions & 0 deletions packages/typescript/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -525,6 +525,16 @@ test('supports CommonJS imports when the output format is CommonJS', async (t) =
t.is(output, 'exported from commonjs');
});

test('supports optional chaining', async (t) => {
const bundle = await rollup({
input: 'fixtures/optional-chaining/main.ts',
plugins: [typescript({ module: 'esnext', target: 'esnext' })],
onwarn
});
const output = await evaluateBundle(bundle);
t.is(output, 'NOT FOUND');
});

function fakeTypescript(custom) {
return Object.assign(
{
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