build: 📦 force TDD for exercises that need it

Author: yjaaidi

tools/cook/config.ts

@@ -71,11 +71,13 @@ const exercises: Exercise[] = [
   {
     id: '304-recipe-search-async-pipe',
     name: '304 - Recipe Search Async Pipe',
+    forceTdd: true,
     implementationFiles: [files.recipeSearch],
   },
   {
     id: '305-recipe-search-signals',
     name: '305 - Recipe Search Signals',
+    forceTdd: true,
     implementationFiles: [files.recipeSearch],
   },
   {

tools/cook/core.ts

@@ -6,5 +6,12 @@ export interface Config {
 export interface Exercise {
   id: string;
   name: string;
+
+  /**
+   * This option forces TDD mode.
+   * It is necessary for exercises where we want users to migrate something,
+   * and see which tests survive the migration.
+   */
+  forceTdd?: boolean;
   implementationFiles?: string[];
 }

tools/cook/main.spec.ts

@@ -57,6 +57,21 @@ describe('cook', () => {
     ]);
   });
 
+  it('uses TDD mode when forceTdd is true', async () => {
+    const { executedCommands } = await runMain({
+      choices: { exercise: '3-recipe-search-async-pipe' },
+      nxJsonContent: {},
+    });
+
+    expect(executedCommands).toEqual([
+      'git switch main',
+      'git branch -D cooking || exit 0',
+      'git switch -c cooking',
+      'git add .',
+      'git commit -m "feat: ✨ focus on 3-recipe-search-async-pipe-starter"',
+    ]);
+  });
+
   it('checks out solution', async () => {
     const { executedCommands, files } = await runMain({
       choices: { command: 'solution', confirmOverwrite: true },
@@ -150,6 +165,12 @@ async function runMain({
       implementationFiles: ['src/app/recipe/recipe-search.ng.ts'],
     },
     { id: '2-test-double', name: 'Test Double' },
+    {
+      id: '3-recipe-search-async-pipe',
+      name: 'Recipe Search Async Pipe',
+      forceTdd: true,
+      implementationFiles: ['src/app/recipe/recipe-search.ng.ts'],
+    },
   ];
 
   await main(args, {

tools/cook/main.ts

@@ -221,13 +221,17 @@ async function goToExercise(ctx: Context, exerciseId?: string) {
   let tdd = true;
 
   if (selectedExercise.implementationFiles) {
-    const tddChoice = await promptAdapter.prompt<{ useTdd: boolean }>({
-      type: 'confirm',
-      name: 'useTdd',
-      message: 'Do you want to use TDD?',
-      initial: false,
-    });
-    tdd = tddChoice.useTdd;
+    if (selectedExercise.forceTdd) {
+      tdd = true;
+    } else {
+      const tddChoice = await promptAdapter.prompt<{ useTdd: boolean }>({
+        type: 'confirm',
+        name: 'useTdd',
+        message: 'Do you want to use TDD?',
+        initial: false,
+      });
+      tdd = tddChoice.useTdd;
+    }
   }
 
   console.log(`\nSetting up exercise: ${selectedExercise.name}`);