test(nx-heroku): add plugin unit test

packages/nx-heroku/src/plugins/plugin.spec.ts

@@ -0,0 +1,72 @@
+/* eslint-disable max-lines-per-function */
+import { CreateNodesContext } from '@nx/devkit';
+import { tmpProjPath } from '@nx/plugin/testing';
+
+import { createNodes } from './plugin';
+
+jest.mock('node:fs', () => ({
+  ...jest.requireActual('node:fs'),
+  existsSync: jest.fn(() => false),
+  readdirSync: jest.fn(() => ['project.json']),
+  readFileSync: jest.fn(() => 'web: node dist/apps/proj'),
+}));
+
+describe('@nx/jest/plugin', () => {
+  const createNodesFunction = createNodes[1];
+  const testProjectName = 'proj';
+  let context: CreateNodesContext;
+
+  beforeEach(() => {
+    context = {
+      nxJsonConfiguration: {
+        namedInputs: {
+          default: ['{projectRoot}/**/*'],
+          production: ['!{projectRoot}/**/*.spec.ts'],
+        },
+      },
+      workspaceRoot: tmpProjPath(),
+    };
+  });
+
+  afterEach(() => {
+    jest.resetModules();
+  });
+
+  it('should create nodes based on Procfile', async () => {
+    const nodes = await createNodesFunction(
+      `${testProjectName}/Procfile`,
+      {
+        deployTargetName: 'deploy-me',
+        promoteTargetName: 'promote-me',
+      },
+      context
+    );
+    expect(nodes.projects[testProjectName]).toMatchInlineSnapshot(`
+      {
+        "root": "${testProjectName}",
+        "targets": {
+          "deploy-me": {
+            "cache": false,
+            "executor": "@aloes/nx-heroku:deploy",
+            "inputs": [
+              "default",
+              "^production",
+            ],
+            "options": {
+              "procfile": "web: node dist/apps/proj",
+            },
+          },
+          "promote-me": {
+            "cache": false,
+            "executor": "@aloes/nx-heroku:promote",
+            "inputs": [
+              "default",
+              "^production",
+            ],
+            "options": {},
+          },
+        },
+      }
+    `);
+  });
+});