test duplicates

Author: nahommesfin77

Sprint-1/implement/dedupe.test.js

@@ -10,18 +10,34 @@ E.g. dedupe(['a','a','a','b','b','c']) target output: ['a','b','c']
 E.g. dedupe([5, 1, 1, 2, 3, 2, 5, 8]) target output: [5, 1, 2, 3, 8]
 E.g. dedupe([1, 2, 1]) target output: [1, 2]
 */
-
+describe("dedupe", () => {
+  test("given an array with duplicates, it deduplicate the elements of an array", () => {
+    expect(dedupe([1, 2, 1])).toEqual([1, 2]);
+    expect(dedupe(["a", "a", "b", "b", "c"])).toEqual(["a", "b", "c"]);
+    expect(dedupe([5, 1, 1, 2, 3, 2, 5, 8])).toEqual([5, 1, 2, 3, 8]);
+  });
 // Acceptance Criteria:
 
 // Given an empty array
 // When passed to the dedupe function
 // Then it should return an empty array
-test.todo("given an empty array, it returns an empty array");
+  test("given an empty array, it returns an empty array", () => {
+    expect(dedupe([])).toEqual([]);
+  });
 
-// Given an array with no duplicates
+// Given an array with no duplicatesgo directly to implementing it step by step
 // When passed to the dedupe function
 // Then it should return a copy of the original array
 
 // Given an array with strings or numbers
 // When passed to the dedupe function
 // Then it should remove the duplicate values, preserving the first occurence of each element
+  test("given an array with no duplicates, it returns a copy of the original array", () => {
+    expect(dedupe([1, 2, 3])).toEqual([1, 2, 3]);
+    expect(dedupe(["a", "b", "c"])).toEqual(["a", "b", "c"]);
+  });
+});
+
+
+
+