89f2424df1
This adds a new test harness that will be used to run baseline-style tests. Each subdirectory underneath tests/output will be interpreted as a test case, each of which can contain an optional `messages.txt` file which will be compared as the expected output against the compiler's error and warning messages, and/or an optional `Mu.out.json` file which will be compared as the expected output against the compiler's output tree. There's just a single "empty" test case for now. I will start getting in the habit of checking in a companion test for each AST kind we lower.
38 lines
1 KiB
TypeScript
38 lines
1 KiB
TypeScript
// Copyright 2017 Marapongo, Inc. All rights reserved.
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import * as assert from "assert";
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export type MochaFunc = (err: Error) => void;
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// A helper function for wrapping some of the boilerplate goo necessary to interface between Mocha's asynchronous
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// testing and our TypeScript async tests.
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export function asyncTest(test: () => Promise<void>): (func: MochaFunc) => void {
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return (done: (err: Error | undefined) => void) => {
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let go = async () => {
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let caught: Error | undefined;
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try {
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await test();
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}
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catch (err) {
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caught = err;
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}
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finally {
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done(caught);
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}
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};
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go();
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};
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}
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// A helper function for asynchronous tests that throw.
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export async function assertAsyncThrows(test: () => Promise<void>): Promise<void> {
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let thrown: boolean = false;
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try {
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await test();
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}
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catch (err) {
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thrown = true;
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}
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assert(thrown, "Function was expected to throw, but didn't");
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}
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