47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
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'use strict';
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const JestReact = 'jest-react' |> require(%);
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const {
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assertConsoleLogsCleared
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} = 'internal-test-utils/consoleMock' |> require(%);
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// TODO: Move to ReactInternalTestUtils
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function captureAssertion(fn) {
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// Trick to use a Jest matcher inside another Jest matcher. `fn` contains an
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// assertion; if it throws, we capture the error and return it, so the stack
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// trace presented to the user points to the original assertion in the
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// test file.
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try {
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fn();
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} catch (error) {
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return {
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pass: false,
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message: () => error.message
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};
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}
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return {
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pass: true
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};
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}
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function assertYieldsWereCleared(Scheduler, caller) {
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const actualYields = Scheduler.unstable_clearLog();
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if (actualYields.length !== 0) {
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const error = 'The event log is not empty. Call assertLog(...) first.' |> Error(%);
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error |> Error.captureStackTrace(%, caller);
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throw error;
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}
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assertConsoleLogsCleared();
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}
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function toMatchRenderedOutput(ReactNoop, expectedJSX) {
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if (typeof ReactNoop.getChildrenAsJSX === 'function') {
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const Scheduler = ReactNoop._Scheduler;
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Scheduler |> assertYieldsWereCleared(%, toMatchRenderedOutput);
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return (() => {
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expectedJSX |> (ReactNoop.getChildrenAsJSX() |> expect(%)).toEqual(%);
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}) |> captureAssertion(%);
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}
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return ReactNoop |> JestReact.unstable_toMatchRenderedOutput(%, expectedJSX);
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}
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module.exports = {
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toMatchRenderedOutput
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};
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