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remove std/testing/runner.ts (#4649)
This commit is contained in:
Bartek Iwańczuk
GitHub
parent
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commit
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1 changed files with 0 additions and 292 deletions
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#!/usr/bin/env -S deno -A
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { parse } from "../flags/mod.ts";
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import { ExpandGlobOptions, expandGlob } from "../fs/mod.ts";
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import { isWindows, join } from "../path/mod.ts";
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const { args, cwd, exit } = Deno;
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const DIR_GLOBS = [join("**", "?(*_)test.{js,ts}")];
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function showHelp(): void {
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console.log(`Deno test runner
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USAGE:
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deno -A https://deno.land/std/testing/runner.ts [OPTIONS] [MODULES...]
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OPTIONS:
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-q, --quiet Don't show output from test cases
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-f, --failfast Stop running tests on first error
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-e, --exclude <MODULES...> List of comma-separated modules to exclude
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--allow-none Exit with status 0 even when no test modules are
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found
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ARGS:
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[MODULES...] List of test modules to run.
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A directory <dir> will expand to:
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${DIR_GLOBS.map((s: string): string => `${join("<dir>", s)}`)
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.join(`
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`)}
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Defaults to "." when none are provided.
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Note that modules can refer to file paths or URLs. File paths support glob
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expansion.
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Examples:
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deno test src/**/*_test.ts
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deno test tests`);
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}
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function isRemoteUrl(url: string): boolean {
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return /^https?:\/\//.test(url);
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}
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function partition(
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arr: string[],
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callback: (el: string) => boolean
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): [string[], string[]] {
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return arr.reduce(
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(paritioned: [string[], string[]], el: string): [string[], string[]] => {
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paritioned[callback(el) ? 1 : 0].push(el);
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return paritioned;
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},
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[[], []]
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);
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}
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function filePathToUrl(path: string): string {
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return `file://${isWindows ? "/" : ""}${path.replace(/\\/g, "/")}`;
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}
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/**
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* Given a list of globs or URLs to include and exclude and a root directory
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* from which to expand relative globs, yield a list of URLs
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* (file: or remote) that should be imported for the test runner.
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*/
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export async function* findTestModules(
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includeModules: string[],
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excludeModules: string[],
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root: string = cwd()
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): AsyncIterableIterator<string> {
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const [includePaths, includeUrls] = partition(includeModules, isRemoteUrl);
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const [excludePaths, excludeUrls] = partition(excludeModules, isRemoteUrl);
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const expandGlobOpts: ExpandGlobOptions = {
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root,
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exclude: excludePaths,
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includeDirs: true,
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extended: true,
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globstar: true,
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};
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async function* expandDirectory(d: string): AsyncIterableIterator<string> {
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for (const dirGlob of DIR_GLOBS) {
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for await (const walkInfo of expandGlob(dirGlob, {
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...expandGlobOpts,
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root: d,
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includeDirs: false,
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})) {
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yield filePathToUrl(walkInfo.filename);
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}
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}
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}
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for (const globString of includePaths) {
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for await (const walkInfo of expandGlob(globString, expandGlobOpts)) {
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if (walkInfo.info.isDirectory()) {
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yield* expandDirectory(walkInfo.filename);
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} else {
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yield filePathToUrl(walkInfo.filename);
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}
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}
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}
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const excludeUrlPatterns = excludeUrls.map(
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(url: string): RegExp => RegExp(url)
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);
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const shouldIncludeUrl = (url: string): boolean =>
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!excludeUrlPatterns.some((p: RegExp): boolean => !!url.match(p));
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yield* includeUrls.filter(shouldIncludeUrl);
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}
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export interface RunTestModulesOptions extends Deno.RunTestsOptions {
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include?: string[];
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exclude?: string[];
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allowNone?: boolean;
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}
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/**
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* Renders test file that will be run.
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*
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* It's done to optimize compilation of test files, because
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* dynamically importing them one by one takes very long time.
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* @TODO(bartlomieju): try to optimize compilation by reusing same compiler host
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* multiple times
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* @param testModules
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*/
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function renderTestFile(testModules: string[]): string {
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let testFile = "";
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for (const testModule of testModules) {
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// NOTE: this is intentional that template string is not used
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// because of TS compiler quirkness of trying to import it
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// rather than treating it like a variable
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testFile += 'import "' + testModule + '"\n';
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}
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return testFile;
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}
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/**
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* Import the specified test modules and run their tests as a suite.
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*
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* Test modules are specified as an array of strings and can include local files
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* or URLs.
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*
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* File matching and excluding support glob syntax - arguments recognized as
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* globs will be expanded using `glob()` from the `fs` module.
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*
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* Example:
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*
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* runTestModules({ include: ["**\/*_test.ts", "**\/test.ts"] });
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*
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* Any matched directory `<dir>` will expand to:
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* <dir>/**\/?(*_)test.{js,ts}
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*
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* So the above example is captured naturally by:
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*
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* runTestModules({ include: ["."] });
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*
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* Which is the default used for:
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*
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* runTestModules();
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*/
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// TODO: Change return type to `Promise<void>` once, `runTests` is updated
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// to return boolean instead of exiting.
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export async function runTestModules({
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include = ["."],
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exclude = [],
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allowNone = false,
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exitOnFail = false,
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only = /[^\s]/,
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skip = /^\s*$/,
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disableLog = false,
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}: RunTestModulesOptions = {}): Promise<void> {
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let moduleCount = 0;
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const testModules = [];
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for await (const testModule of findTestModules(include, exclude)) {
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testModules.push(testModule);
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moduleCount++;
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}
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if (moduleCount == 0) {
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const noneFoundMessage = "No matching test modules found.";
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if (!allowNone) {
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throw new Deno.errors.NotFound(noneFoundMessage);
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} else if (!disableLog) {
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console.log(noneFoundMessage);
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}
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return;
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}
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// Create temporary test file which contains
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// all matched modules as import statements.
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const testFile = renderTestFile(testModules);
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// Select where temporary test file will be stored.
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// If `DENO_DIR` is set it means that user intentionally wants to store
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// modules there - so it's a sane default to store there.
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// Fallback is current directory which again seems like a sane default,
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// user is probably working on project in this directory or even
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// cd'ed into current directory to quickly run test from this directory.
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const root = Deno.env("DENO_DIR") || Deno.cwd();
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const testFilePath = join(root, ".deno.test.ts");
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const data = new TextEncoder().encode(testFile);
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await Deno.writeFile(testFilePath, data);
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// Import temporary test file and delete it immediately after importing so it's not cluttering disk.
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//
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// You may think that this will cause recompilation on each run, but this actually
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// tricks Deno to not recompile files if there's no need.
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// Eg.
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// 1. On first run of $DENO_DIR/.deno.test.ts Deno will compile and cache temporary test file and all of its imports
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// 2. Temporary test file is removed by test runner
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// 3. On next test run file is created again. If no new modules were added then temporary file contents are identical.
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// Deno will not compile temporary test file again, but load it directly into V8.
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// 4. Deno starts loading imports one by one.
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// 5. If imported file is outdated, Deno will recompile this single file.
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let err;
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try {
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await import(`file://${testFilePath}`);
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} catch (e) {
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err = e;
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} finally {
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await Deno.remove(testFilePath);
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}
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if (err) {
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throw err;
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}
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if (!disableLog) {
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console.log(`Found ${moduleCount} matching test modules.`);
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}
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await Deno.runTests({
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exitOnFail,
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only,
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skip,
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disableLog,
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});
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}
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async function main(): Promise<void> {
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const parsedArgs = parse(args, {
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boolean: ["allow-none", "failfast", "help", "quiet"],
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string: ["exclude"],
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alias: {
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exclude: ["e"],
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failfast: ["f"],
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help: ["h"],
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quiet: ["q"],
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},
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default: {
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"allow-none": false,
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failfast: false,
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help: false,
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quiet: false,
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},
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});
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if (parsedArgs.help) {
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return showHelp();
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}
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const include =
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parsedArgs._.length > 0
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? (parsedArgs._ as string[]).flatMap((fileGlob: string): string[] =>
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fileGlob.split(",")
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)
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: ["."];
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const exclude =
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parsedArgs.exclude != null ? (parsedArgs.exclude as string).split(",") : [];
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const allowNone = parsedArgs["allow-none"];
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const disableLog = parsedArgs.quiet;
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try {
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await runTestModules({
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include,
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exclude,
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allowNone,
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disableLog,
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exitOnFail: true,
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});
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} catch (error) {
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if (!disableLog) {
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console.error(error.message);
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}
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exit(1);
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}
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}
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if (import.meta.main) {
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main();
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}
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