update tests

Author: b-yogesh

chartlets.js/packages/lib/src/utils/compare.test.ts

@@ -7,10 +7,28 @@ describe("Test shallowEqualArrays()", () => {
   const arr_c: string[] = ["a", "b", "d"];
   const arr_d: string[] = [];
   const arr_e: string[] = ["a", "b", "c", "d"];
+  const arr_f: (string | null)[] = ["a", "b", "c", null];
+  const arr_g: (string | null)[] = ["a", "b", "c", null];
+  const arr_h = [1, [1, 2, 3], [4, 5, 6]];
+  const arr_i = [1, [1, 2, 3], [4, 5, 6]];
+  const arr_j: (number | string | null)[] = [1, 2, "c", null];
+  const arr_k: (number | string | null)[] = [1, 3, "c", null];
+  const arr_l: (number | string | null)[] = [1, 2, "c", null];
+  const arr_m: number[] = [1, 2];
+  const arr_n: number[] = [1, 2];
+  const arr_o: null[] = [null];
+  const arr_p: null[] = [null];
   it("works", () => {
     expect(shallowEqualArrays(arr_a, arr_b)).toBe(true);
     expect(shallowEqualArrays(arr_a, arr_c)).toBe(false);
     expect(shallowEqualArrays(arr_a, arr_d)).toBe(false);
     expect(shallowEqualArrays(arr_a, arr_e)).toBe(false);
+    expect(shallowEqualArrays(arr_f, arr_g)).toBe(true);
+    expect(shallowEqualArrays(arr_h, arr_i)).toBe(false);
+    expect(shallowEqualArrays(arr_j, arr_k)).toBe(false);
+    expect(shallowEqualArrays(arr_j, arr_l)).toBe(true);
+    expect(shallowEqualArrays(arr_m, arr_n)).toBe(true);
+    expect(shallowEqualArrays(arr_m, arr_l)).toBe(false);
+    expect(shallowEqualArrays(arr_o, arr_p)).toBe(true);
   });
 });