test: getDiff (preliminary)

Author: jescalada

test/processors/getDiff.test.js

@@ -0,0 +1,71 @@
+const path = require('path');
+const simpleGit = require('simple-git');
+const fs = require('fs');
+const { Action } = require('../../src/proxy/actions');
+const { exec } = require('../../src/proxy/processors/push-action/getDiff');
+
+const chai = require('chai');
+const expect = chai.expect;
+
+describe('getDiff', () => {
+  let tempDir;
+  let git;
+  
+  before(async () => {
+    // Create a temp repo to avoid mocking simple-git
+    tempDir = path.join(__dirname, 'temp-test-repo');
+    await fs.mkdir(tempDir, { recursive: true }, (err) => {
+      if (err) {
+        console.error(err);
+      }
+    });
+    git = simpleGit(tempDir);
+    
+    await git.init();
+    await fs.writeFile(path.join(tempDir, 'test.txt'), 'initial content', (err) => {
+      if (err) {
+        console.error(err);
+      }
+    });
+    await git.add('.');
+    await git.commit('initial commit');
+  });
+  
+  after(async () => {
+    await fs.rmdir(tempDir, { recursive: true }, (err) => {
+      if (err) {
+        console.error(err);
+      }
+    });
+  });
+  
+  it('should get diff between commits', async () => {
+    await fs.writeFile(path.join(tempDir, 'test.txt'), 'modified content', (err) => {
+      if (err) {
+        console.error(err);
+      }
+    });
+    await git.add('.');
+    const commit = await git.commit('second commit');
+    
+    const action = new Action(
+      '1234567890',
+      'push',
+      'POST',
+      1234567890,
+      'test/repo'
+    );
+    action.proxyGitPath = __dirname; // Temp dir parent path
+    action.repoName = 'temp-test-repo';
+    action.commitFrom = 'HEAD~1';
+    action.commitTo = 'HEAD';
+    action.commitData = [
+      { parent: '0000000000000000000000000000000000000000' }
+    ];
+    
+    const result = await exec({}, action);
+    
+    expect(result.steps[0].error).to.be.false;
+    expect(result.steps[0].content).to.include('modified content');
+  });
+});