Add tests for all_changed and any_changed outputs (#12)

* test: add coverage for output flags

* push

__tests__/outputs.test.ts

@@ -0,0 +1,46 @@
+import {ChangeStatus} from '../src/file'
+import {exportResults} from '../src/main'
+import * as core from '@actions/core'
+
+jest.mock('@actions/core', () => ({
+  setOutput: jest.fn(),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  info: jest.fn()
+}))
+
+describe('all_changed and any_changed outputs', () => {
+  beforeEach(() => {
+    jest.clearAllMocks()
+  })
+
+  test('reports true when all filters changed', () => {
+    const results = {
+      src: [{filename: 'src/file.ts', status: ChangeStatus.Modified}],
+      docs: [{filename: 'docs/readme.md', status: ChangeStatus.Added}]
+    }
+    exportResults(results, 'none')
+    expect(core.setOutput).toHaveBeenCalledWith('all_changed', true)
+    expect(core.setOutput).toHaveBeenCalledWith('any_changed', true)
+  })
+
+  test('reports false for all_changed when some filters unchanged', () => {
+    const results = {
+      src: [{filename: 'src/file.ts', status: ChangeStatus.Modified}],
+      docs: []
+    }
+    exportResults(results, 'none')
+    expect(core.setOutput).toHaveBeenCalledWith('all_changed', false)
+    expect(core.setOutput).toHaveBeenCalledWith('any_changed', true)
+  })
+
+  test('reports false for any_changed when no filter changed', () => {
+    const results = {
+      src: [],
+      docs: []
+    }
+    exportResults(results, 'none')
+    expect(core.setOutput).toHaveBeenCalledWith('all_changed', true)
+    expect(core.setOutput).toHaveBeenCalledWith('any_changed', false)
+  })
+})

dist/index.js

@@ -553,6 +553,7 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.run = exports.exportResults = void 0;
 const fs = __importStar(__nccwpck_require__(7147));
 const core = __importStar(__nccwpck_require__(2186));
 const github = __importStar(__nccwpck_require__(5438));
@@ -595,6 +596,7 @@ async function run() {
         core.setFailed(getErrorMessage(error));
     }
 }
+exports.run = run;
 function isPathInput(text) {
     return !(text.includes('\n') || text.includes(':'));
 }
@@ -782,6 +784,7 @@ function exportResults(results, format) {
         core.info('Cannot set changes output variable - name already used by filter output');
     }
 }
+exports.exportResults = exportResults;
 function serializeExport(files, format) {
     const fileNames = files.map(file => file.filename);
     switch (format) {
@@ -805,7 +808,9 @@ function getErrorMessage(error) {
         return error.message;
     return String(error);
 }
-run();
+if (require.main === require.cache[eval('__filename')]) {
+    run();
+}
 
 
 /***/ }),

src/main.ts

@@ -228,7 +228,7 @@ async function getChangedFilesFromApi(token: string, pullRequest: PullRequestEve
   }
 }
 
-function exportResults(results: FilterResults, format: ExportFormat): void {
+export function exportResults(results: FilterResults, format: ExportFormat): void {
   core.info('Results:')
   const changes: string[] = []
   let anyChanged = false
@@ -295,4 +295,8 @@ function getErrorMessage(error: unknown): string {
   return String(error)
 }
 
-run()
+if (require.main === module) {
+  run()
+}
+
+export {run}