Added the langium module for gitGraph

packages/parser/tests/gitGraph.test.ts

@@ -0,0 +1,99 @@
+import { describe, expect, it } from 'vitest';
+import { GitGraph } from '../src/language/index.js';
+import { gitGraphParse as parse } from './test-util.js';
+
+describe('gitGraph', () => {
+  describe('Basic Parsing', () => {
+    it('should handle empty gitGraph', () => {
+      const result = parse(`gitGraph`);
+      expect(result.value.$type).toBe(GitGraph);
+      expect(result.value.statements).toHaveLength(0);
+    });
+
+    it('should handle multiple commits', () => {
+      const result = parse(`
+        gitGraph
+        commit
+        commit
+      `);
+      expect(result.value.$type).toBe(GitGraph);
+      expect(result.value.statements).toHaveLength(2);
+      expect(
+        result.value.statements.every((s: { $type: string }) => s.$type === 'Commit')
+      ).toBeTruthy();
+    });
+
+    it('should handle branches and checkouts', () => {
+      const result = parse(`
+        gitGraph
+        branch feature
+        branch release
+        checkout feature
+      `);
+      expect(result.value.statements).toHaveLength(3);
+      expect(result.value.statements[0].$type).toBe('Branch');
+      expect(result.value.statements[0].name).toBe('feature');
+      expect(result.value.statements[1].$type).toBe('Branch');
+      expect(result.value.statements[1].name).toBe('release');
+      expect(result.value.statements[2].$type).toBe('Checkout');
+      expect(result.value.statements[2].id).toBe('feature');
+    });
+
+    it('should handle merges', () => {
+      const result = parse(`
+        gitGraph
+        branch feature
+        commit id: "A"
+        merge feature id: "M"
+      `);
+      expect(result.value.statements).toHaveLength(3);
+      expect(result.value.statements[2].$type).toBe('Merge');
+      expect(result.value.statements[2].name).toBe('feature');
+      expect(result.value.statements[2].properties[0].id).toBe('M');
+    });
+
+    it('should handle cherry-picking with tags and parent', () => {
+      const result = parse(`
+        gitGraph
+        branch feature
+        commit id: "M"
+        checkout main
+        cherry-pick id: "M" tag: "v2.1:ZERO" parent:"ZERO"
+      `);
+      expect(result.value.statements).toHaveLength(4);
+      expect(result.value.statements[3].$type).toBe('CherryPicking');
+      expect(result.value.statements[3].properties.length).toBe(3);
+      expect(result.value.statements[3].properties[0].id).toBe('M');
+      expect(result.value.statements[3].properties[1].tags).toBe('v2.1:ZERO');
+      expect(result.value.statements[3].properties[2].id).toBe('ZERO');
+    });
+
+    it('should parse complex gitGraph interactions', () => {
+      const result = parse(`
+        gitGraph
+        commit id: "ZERO"
+        branch feature
+        branch release
+        checkout feature
+        commit id: "A"
+        commit id: "B"
+        checkout main
+        merge feature id: "M"
+        checkout release
+        commit id: "C"
+        cherry-pick id: "M" tag: "v2.1:ZERO" parent:"ZERO"
+        commit id: "D"
+      `);
+      expect(result.value.statements).toHaveLength(12);
+      expect(result.value.statements[0].$type).toBe('Commit');
+      expect(result.value.statements[0].properties[0].id).toBe('ZERO');
+      expect(result.value.statements[1].$type).toBe('Branch');
+      expect(result.value.statements[6].$type).toBe('Merge');
+      expect(result.value.statements[10].$type).toBe('CherryPicking');
+      expect(result.value.statements[10].properties[0].id).toBe('M');
+      expect(result.value.statements[10].properties[2].id).toBe('ZERO');
+      expect(result.value.statements[11].$type).toBe('Commit');
+      expect(result.value.statements[11].properties[0].id).toBe('D');
+    });
+  });
+});