Parameterize the default tests for quickly adding scenarios to test

tests/default.test.mjs

@@ -4,79 +4,93 @@ import { existsSync, writeFileSync } from 'fs';
 import stripAnsi from 'strip-ansi';
 import { newProjectWithFixtures } from './helpers.mjs';
 
+const SCENARIOS = [
+  {
+    flags: [
+      /* none, default */
+    ],
+    fixturePath: join(import.meta.dirname, 'fixture'),
+  },
+];
+
 describe('basic functionality', function () {
-  let project = newProjectWithFixtures({
-    fixturePath: join(__dirname, 'fixture'),
-  });
-
-  it('verify files', async function () {
-    expect(
-      !existsSync(join(project.dir(), 'app/index.html')),
-      'the app index.html has been removed',
-    );
-    expect(
-      existsSync(join(project.dir(), 'index.html')),
-      'the root index.html has been added',
-    );
-  });
-
-  it('successfully lints', async function () {
-    let result = await project.execa('pnpm', ['lint']);
-
-    console.log(result.stdout);
-  });
-
-  it('successfully builds', async function () {
-    let result = await project.execa('pnpm', ['build']);
-
-    console.log(result.stdout);
-  });
-
-  it('successfully runs tests', async function () {
-    let result;
-
-    try {
-      result = await project.execa('pnpm', ['test:ember']);
-    } catch (err) {
-      console.log(err.stdout, err.stderr);
-      throw err;
-    }
-
-    // make sure that each of the tests that we expect actually show up
-    // alternatively we can change this to search for `pass 3`
-    expect(result.stdout).to.contain(
-      'Acceptance | welcome page: visiting /index shows the welcome page',
-    );
-    expect(result.stdout).to.contain('Acceptance | styles: visiting /styles');
-
-    console.log(result.stdout);
-  });
-
-  it('successfully runs tests in dev mode', async function () {
-    await project.$`pnpm install --save-dev testem http-proxy`;
-    let appURL;
-
-    let server;
-
-    try {
-      server = project.execa('pnpm', ['start']);
-
-      await new Promise((resolve) => {
-        server.stdout.on('data', (line) => {
-          let result = /Local:\s+(https?:\/\/.*)\//g.exec(
-            stripAnsi(line.toString()),
-          );
+  for (let { flags, fixturePath } of SCENARIOS) {
+    describe(`with flags: '${flags.join(' ')}'`, function () {
+      let project = newProjectWithFixtures({
+        fixturePath,
+        flags,
+      });
+
+      it('verify files', async function () {
+        expect(
+          !existsSync(join(project.dir(), 'app/index.html')),
+          'the app index.html has been removed',
+        );
+        expect(
+          existsSync(join(project.dir(), 'index.html')),
+          'the root index.html has been added',
+        );
+      });
+
+      it('successfully lints', async function () {
+        let result = await project.execa('pnpm', ['lint']);
+
+        console.log(result.stdout);
+      });
+
+      it('successfully builds', async function () {
+        let result = await project.execa('pnpm', ['build']);
+
+        console.log(result.stdout);
+      });
 
-          if (result) {
-            appURL = result[1];
-            resolve();
-          }
-        });
+      it('successfully runs tests', async function () {
+        let result;
+
+        try {
+          result = await project.execa('pnpm', ['test:ember']);
+        } catch (err) {
+          console.log(err.stdout, err.stderr);
+          throw 'Failed to successfully run test:ember';
+        }
+
+        // make sure that each of the tests that we expect actually show up
+        // alternatively we can change this to search for `pass 3`
+        expect(result.stdout).to.contain(
+          'Acceptance | welcome page: visiting /index shows the welcome page',
+        );
+        expect(result.stdout).to.contain(
+          'Acceptance | styles: visiting /styles',
+        );
+
+        console.log(result.stdout);
       });
 
-      writeFileSync(
-        join(project.dir(), 'testem-dev.js'),
-        `module.exports = {
+      it('successfully runs tests in dev mode', async function () {
+        await project.$`pnpm install --save-dev testem http-proxy`;
+        let appURL;
+
+        let server;
+
+        try {
+          server = project.execa('pnpm', ['start']);
+
+          await new Promise((resolve) => {
+            server.stdout.on('data', (line) => {
+              let result = /Local:\s+(https?:\/\/.*)\//g.exec(
+                stripAnsi(line.toString()),
+              );
+
+              if (result) {
+                appURL = result[1];
+                resolve();
+              }
+            });
+          });
+
+          writeFileSync(
+            join(project.dir(), 'testem-dev.js'),
+            `module.exports = {
   test_page: 'tests/index.html?hidepassed',
   disable_watching: true,
   launch_in_ci: ['Chrome'],
@@ -101,21 +115,23 @@ describe('basic functionality', function () {
   ],
 };
 `,
-      );
-
-      let testResult = await project.execa('pnpm', [
-        'testem',
-        '--file',
-        'testem-dev.js',
-        'ci',
-      ]);
-      expect(testResult.exitCode).to.eq(0, testResult.output);
-    } finally {
-      server?.kill('SIGINT');
-    }
-  });
-
-  it('successfully optimizes deps', function () {
-    return project.execa('pnpm', ['vite', 'optimize', '--force']);
-  });
+          );
+
+          let testResult = await project.execa('pnpm', [
+            'testem',
+            '--file',
+            'testem-dev.js',
+            'ci',
+          ]);
+          expect(testResult.exitCode).to.eq(0, testResult.output);
+        } finally {
+          server?.kill('SIGINT');
+        }
+      });
+
+      it('successfully optimizes deps', function () {
+        return project.execa('pnpm', ['vite', 'optimize', '--force']);
+      });
+    });
+  }
 });