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feat: add overloaded form of unit test declaration (denoland/deno_std#563)

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Original: bd146e0188
This commit is contained in:
Bartek Iwańczuk 2019-08-14 22:12:35 +02:00 • committed by Ryan Dahl
parent eab0647bd1
commit d928c0ca31
2 changed files with 23 additions and 3 deletions
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21
testing/mod.ts
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@ -86,9 +86,24 @@ function filter(name: string): boolean {
}
}
export function test(t: TestDefinition | TestFunction): void {
const fn: TestFunction = typeof t === "function" ? t : t.fn;
const name: string = t.name;
export function test(t: TestDefinition): void;
export function test(fn: TestFunction): void;
export function test(name: string, fn: TestFunction): void;
export function test(
t: string | TestDefinition | TestFunction,
fn?: TestFunction
): void {
let name: string;
if (typeof t === "string") {
if (!fn) {
throw new Error("Missing test function");
}
name = t;
} else {
fn = typeof t === "function" ? t : t.fn;
name = t.name;
}
if (!name) {
throw new Error("Test function may not be anonymous");

5
testing/test.ts
View file

@ -263,4 +263,9 @@ test(async function testingThrowsAsyncMsgNotIncludes(): Promise<void> {
assert(didThrow);
});
test("test fn overloading", (): void => {
// just verifying that you can use this test definition syntax
assert(true);
});
runIfMain(import.meta);