test(cli): add GitAffected automated tests

cli/services/__test__/GitAffected.test.ts

@@ -0,0 +1,104 @@
+import { Challenge } from '../Challenge'
+import { GitAffected } from '../GitAffected'
+import { Solution } from '../Solution'
+
+const gitAffected = new GitAffected({ isContinuousIntegration: false })
+
+describe('services/GitAffected - parseGitOutput', () => {
+  it('returns the right output array', () => {
+    expect(gitAffected.parseGitOutput('1.txt\n 2.txt ')).toEqual(['1.txt', '2.txt'])
+  })
+})
+
+describe('services/GitAffected - getAffectedSolutionsFromFiles', () => {
+  it('returns the affected solutions', async () => {
+    const files = [
+      'challenges/hello-world/solutions/javascript/function/solution.js',
+      'challenges/is-palindrome/solutions/c/function/input.c'
+    ]
+    const solutions = await gitAffected.getAffectedSolutionsFromFiles(files)
+    expect(solutions).toEqual([
+      new Solution({
+        challenge: new Challenge({ name: 'hello-world' }),
+        name: 'function',
+        programmingLanguageName: 'javascript'
+      }),
+      new Solution({
+        challenge: new Challenge({ name: 'is-palindrome' }),
+        name: 'function',
+        programmingLanguageName: 'c'
+      })
+    ])
+  })
+
+  it('returns the affected solutions from Dockerfile changes', async () => {
+    const files = ['templates/docker/javascript/Dockerfile']
+    const solutions = await gitAffected.getAffectedSolutionsFromFiles(files)
+    expect(solutions[0]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'camel-case' }),
+        name: 'function',
+        programmingLanguageName: 'javascript'
+      })
+    )
+    expect(solutions[1]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'first-non-repeating-character' }),
+        name: 'function',
+        programmingLanguageName: 'javascript'
+      })
+    )
+  })
+
+  it('returns the affected solutions from Docker template changes', async () => {
+    const files = ['templates/docker/javascript/package.json']
+    const solutions = await gitAffected.getAffectedSolutionsFromFiles(files)
+    expect(solutions[0]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'camel-case' }),
+        name: 'function',
+        programmingLanguageName: 'javascript'
+      })
+    )
+    expect(solutions[1]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'first-non-repeating-character' }),
+        name: 'function',
+        programmingLanguageName: 'javascript'
+      })
+    )
+  })
+
+  it('returns the affected solutions from input/output files', async () => {
+    const files = ['challenges/hello-world/test/1/input.txt']
+    const solutions = await gitAffected.getAffectedSolutionsFromFiles(files)
+    expect(solutions[0]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'hello-world' }),
+        name: 'function',
+        programmingLanguageName: 'c'
+      })
+    )
+    expect(solutions[1]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'hello-world' }),
+        name: 'function',
+        programmingLanguageName: 'cpp'
+      })
+    )
+    expect(solutions[2]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'hello-world' }),
+        name: 'function',
+        programmingLanguageName: 'cs'
+      })
+    )
+    expect(solutions[3]).toEqual(
+      new Solution({
+        challenge: new Challenge({ name: 'hello-world' }),
+        name: 'function',
+        programmingLanguageName: 'dart'
+      })
+    )
+  })
+})