robojerk/codeql-action

reset environment variables between tests

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Robert 2020-07-21 11:24:37 +01:00
parent ee63f4ee4b
commit 29cf06569d
6 changed files with 28 additions and 3 deletions
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11
src/testing-utils.ts
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@ -3,7 +3,7 @@ import sinon from 'sinon';
import * as CodeQL from './codeql';
type TestContext = {stdoutWrite: any, stderrWrite: any, testOutput: string};
type TestContext = {stdoutWrite: any, stderrWrite: any, testOutput: string, env: NodeJS.ProcessEnv};
function wrapOutput(context: TestContext) {
// Function signature taken from Socket.write.
@ -49,6 +49,12 @@ export function setupTests(test: TestInterface<any>) {
const processStderrWrite = process.stderr.write.bind(process.stderr);
t.context.stderrWrite = processStderrWrite;
process.stderr.write = wrapOutput(t.context) as any;
// Many tests modify environment variables. Take a copy now so that
// We reset them after the test to keep tests independent of each other.
// process.env only has strings fields, so a shallow copy is fine.
t.context.env = {};
Object.assign(process.env, t.context.env);
});
typedTest.afterEach.always(t => {
@ -62,5 +68,8 @@ export function setupTests(test: TestInterface<any>) {
// Undo any modifications made by sinon
sinon.restore();
// Undo any modifications to the env
process.env = t.context.env;
});
}