chore: rename @vben-core -> @core

packages/@core/shared/toolkit/src/letter.test.ts

@@ -0,0 +1,78 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  capitalizeFirstLetter,
+  toCamelCase,
+  toLowerCaseFirstLetter,
+} from './letter';
+
+// 编写测试用例
+describe('capitalizeFirstLetter', () => {
+  it('should capitalize the first letter of a string', () => {
+    expect(capitalizeFirstLetter('hello')).toBe('Hello');
+    expect(capitalizeFirstLetter('world')).toBe('World');
+  });
+
+  it('should handle empty strings', () => {
+    expect(capitalizeFirstLetter('')).toBe('');
+  });
+
+  it('should handle single character strings', () => {
+    expect(capitalizeFirstLetter('a')).toBe('A');
+    expect(capitalizeFirstLetter('b')).toBe('B');
+  });
+
+  it('should not change the case of other characters', () => {
+    expect(capitalizeFirstLetter('hElLo')).toBe('HElLo');
+  });
+});
+
+describe('toLowerCaseFirstLetter', () => {
+  it('should convert the first letter to lowercase', () => {
+    expect(toLowerCaseFirstLetter('CommonAppName')).toBe('commonAppName');
+    expect(toLowerCaseFirstLetter('AnotherKeyExample')).toBe(
+      'anotherKeyExample',
+    );
+  });
+
+  it('should return the same string if the first letter is already lowercase', () => {
+    expect(toLowerCaseFirstLetter('alreadyLowerCase')).toBe('alreadyLowerCase');
+  });
+
+  it('should handle empty strings', () => {
+    expect(toLowerCaseFirstLetter('')).toBe('');
+  });
+
+  it('should handle single character strings', () => {
+    expect(toLowerCaseFirstLetter('A')).toBe('a');
+    expect(toLowerCaseFirstLetter('a')).toBe('a');
+  });
+
+  it('should handle strings with only one uppercase letter', () => {
+    expect(toLowerCaseFirstLetter('A')).toBe('a');
+  });
+
+  it('should handle strings with special characters', () => {
+    expect(toLowerCaseFirstLetter('!Special')).toBe('!Special');
+    expect(toLowerCaseFirstLetter('123Number')).toBe('123Number');
+  });
+});
+
+describe('toCamelCase', () => {
+  it('should return the key if parentKey is empty', () => {
+    expect(toCamelCase('child', '')).toBe('child');
+  });
+
+  it('should combine parentKey and key in camel case', () => {
+    expect(toCamelCase('child', 'parent')).toBe('parentChild');
+  });
+
+  it('should handle empty key and parentKey', () => {
+    expect(toCamelCase('', '')).toBe('');
+  });
+
+  it('should handle key with capital letters', () => {
+    expect(toCamelCase('Child', 'parent')).toBe('parentChild');
+    expect(toCamelCase('Child', 'Parent')).toBe('ParentChild');
+  });
+});