Feat: `create astro` add install step (#3190)

* feat: add instlal step with pkg manager detection

* feat: add package emoji for style points

* feat: update next steps to match pkg manager

* refactor: extract some create-astro test utils

* refactor: extract promp msgs to utils

* chore: add install step tests

* chore: changeset

* fix: remove directory test skip

* fix: unset env variables after install step test

* deps: add execa to create-astro

* refactor: use execa for install step

* chore: remove old comment

* fix: rework install step test for node 14?

* chore: remove "politely stolen" footnote

* temp: show stdout dialog

* feat: remove debugging logs, add dryrun flag for testing

* chore: more stray logs

* fix: remove rmdir

1 files changed, 40 insertions, 0 deletions

diff --git a/packages/create-astro/test/utils.js b/packages/create-astro/test/utils.js
new file mode 100644
index 000000000..c5519c7bf
--- /dev/null
+++ b/packages/create-astro/test/utils.js
@@ -0,0 +1,40 @@
+import { execa } from 'execa'
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+
+const __filename = fileURLToPath(import.meta.url);
+export const testDir = dirname(__filename);
+export const timeout = 5000;
+
+const createAstroError = new Error(
+	'Timed out waiting for create-astro to respond with expected output.'
+);
+
+export function promiseWithTimeout(testFn) {
+	return new Promise((resolve, reject) => {
+		const timeoutEvent = setTimeout(() => {
+			reject(createAstroError);
+		}, timeout);
+		function resolver() {
+			clearTimeout(timeoutEvent);
+			resolve();
+		}
+		testFn(resolver);
+	});
+}
+
+export const PROMPT_MESSAGES = {
+	directory: 'Where would you like to create your app?',
+	template: 'Which app template would you like to use?',
+	// TODO: remove when framework selector is removed
+	frameworks: 'Which frameworks would you like to use?',
+	install: (pkgManager) => `Would you like us to run "${pkgManager} install?"`,
+};
+
+export function setup(args = []) {
+	const { stdout, stdin } = execa('../create-astro.mjs', args, { cwd: testDir });
+	return {
+		stdin,
+		stdout,
+	};
+}