test: add unit tests for condensation function in SCCs

Author: anurag2204-k

Graphs/test/Condensation.test.js

@@ -0,0 +1,30 @@
+import { condensation } from '../Condensation.js'
+
+test('Test Case 1', () => {
+    const graph = [
+        [1, 2],
+        [2, 3],
+        [3, 1],
+        [2, 4],
+        [4, 5],
+        [5, 6],
+        [6, 4]
+    ]
+    const { sccs } = condensation(graph)
+    expect(sccs).toStrictEqual([
+        [1, 3, 2],
+        [4, 6, 5]
+    ])
+})
+
+test('Test Case 2', () => {
+    const graph = [
+        [1, 2],
+        [2, 3],
+        [3, 1],
+        [2, 4],
+        [4, 5]
+    ]
+    const { sccs } = condensation(graph)
+    expect(sccs).toStrictEqual([[1, 3, 2], [4], [5]])
+})