test: Update some test code

src/compat/array/initial.spec.ts

@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'vitest';
+import { initial } from '../../array/initial';
+
+/**
+ * @see https://github.com/lodash/lodash/blob/6a2cc1dfcf7634fea70d1bc5bd22db453df67b42/test/initial.spec.js#L1
+ */
+describe('initial', () => {
+  const array = [1, 2, 3];
+
+  it('should exclude last element', () => {
+    expect(initial(array)).toEqual([1, 2]);
+  });
+
+  it('should return an empty when querying empty arrays', () => {
+    expect(initial([])).toEqual([]);
+  });
+
+  it('should work as an iteratee for methods like `map`', () => {
+    const array = [
+      [1, 2, 3],
+      [4, 5, 6],
+      [7, 8, 9],
+    ];
+    const actual = array.map(initial);
+
+    expect(actual).toEqual([
+      [1, 2],
+      [4, 5],
+      [7, 8],
+    ]);
+  });
+});

src/compat/array/without.spec.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest';
+import { without } from '../../array/without';
+
+/**
+ * @see https://github.com/lodash/lodash/blob/6a2cc1dfcf7634fea70d1bc5bd22db453df67b42/test/without.spec.js#L1
+ */
+describe('without', () => {
+  it('should return the difference of values', () => {
+    const actual = without([2, 1, 2, 3], 1, 2);
+    expect(actual).toEqual([3]);
+  });
+
+  it('should use strict equality to determine the values to reject', () => {
+    const object1 = { a: 1 };
+    const object2 = { b: 2 };
+    const array = [object1, object2];
+
+    expect(without(array, { a: 1 })).toEqual(array);
+    expect(without(array, object1)).toEqual([object2]);
+  });
+
+  it('should remove all occurrences of each value from an array', () => {
+    const array = [1, 2, 3, 1, 2, 3];
+    expect(without(array, 1, 2)).toEqual([3, 3]);
+  });
+});

src/compat/predicate/isEqual.spec.ts

@@ -5,7 +5,6 @@ import { isEqual } from "es-toolkit/compat";
 import { args } from "../_internal/args";
 import { arrayViews } from "../_internal/arrayViews";
 
-
 describe('isEqual', () => {
   const symbol1 = Symbol ? Symbol('a') : true;
   const symbol2 = Symbol ? Symbol('b') : false;