@beparallel/langchain-ts/dist/lib/case.test.js

Extracts Langchain prompts and generates TypeScript types.

import { toCamelCase, toPascalCase, toUpperCase } from './case.js';
describe('Case Conversion Functions', () => {
    describe('toCamelCase', () => {
        test('converts space-separated words to camelCase', () => {
            expect(toCamelCase('hello world')).toBe('helloWorld');
            expect(toCamelCase('foo bar baz')).toBe('fooBarBaz');
        });
        test('converts hyphen-separated words to camelCase', () => {
            expect(toCamelCase('hello-world')).toBe('helloWorld');
            expect(toCamelCase('foo-bar-baz')).toBe('fooBarBaz');
        });
        test('converts underscore-separated words to camelCase', () => {
            expect(toCamelCase('hello_world')).toBe('helloWorld');
            expect(toCamelCase('foo_bar_baz')).toBe('fooBarBaz');
        });
        test('converts mixed separators to camelCase', () => {
            expect(toCamelCase('hello-world_test case')).toBe('helloWorldTestCase');
        });
        test('handles single words', () => {
            expect(toCamelCase('hello')).toBe('hello');
            expect(toCamelCase('HELLO')).toBe('hello');
        });
        test('handles empty and whitespace strings', () => {
            expect(toCamelCase('')).toBe('');
            expect(toCamelCase('   ')).toBe('');
        });
        test('trims leading and trailing whitespace', () => {
            expect(toCamelCase('  hello world  ')).toBe('helloWorld');
        });
    });
    describe('toPascalCase', () => {
        test('converts space-separated words to PascalCase', () => {
            expect(toPascalCase('hello world')).toBe('HelloWorld');
            expect(toPascalCase('foo bar baz')).toBe('FooBarBaz');
        });
        test('converts hyphen-separated words to PascalCase', () => {
            expect(toPascalCase('hello-world')).toBe('HelloWorld');
            expect(toPascalCase('foo-bar-baz')).toBe('FooBarBaz');
        });
        test('converts underscore-separated words to PascalCase', () => {
            expect(toPascalCase('hello_world')).toBe('HelloWorld');
            expect(toPascalCase('foo_bar_baz')).toBe('FooBarBaz');
        });
        test('converts mixed separators to PascalCase', () => {
            expect(toPascalCase('hello-world_test case')).toBe('HelloWorldTestCase');
        });
        test('handles single words', () => {
            expect(toPascalCase('hello')).toBe('Hello');
            expect(toPascalCase('HELLO')).toBe('Hello');
        });
        test('handles empty and whitespace strings', () => {
            expect(toPascalCase('')).toBe('');
            expect(toPascalCase('   ')).toBe('');
        });
        test('trims leading and trailing whitespace', () => {
            expect(toPascalCase('  hello world  ')).toBe('HelloWorld');
        });
    });
    describe('toUpperCase', () => {
        test('converts space-separated words to UPPER_CASE', () => {
            expect(toUpperCase('hello world')).toBe('HELLO_WORLD');
            expect(toUpperCase('foo bar baz')).toBe('FOO_BAR_BAZ');
        });
        test('converts hyphen-separated words to UPPER_CASE', () => {
            expect(toUpperCase('hello-world')).toBe('HELLO_WORLD');
            expect(toUpperCase('foo-bar-baz')).toBe('FOO_BAR_BAZ');
        });
        test('converts underscore-separated words to UPPER_CASE', () => {
            expect(toUpperCase('hello_world')).toBe('HELLO_WORLD');
            expect(toUpperCase('foo_bar_baz')).toBe('FOO_BAR_BAZ');
        });
        test('converts mixed separators to UPPER_CASE', () => {
            expect(toUpperCase('hello-world_test case')).toBe('HELLO_WORLD_TEST_CASE');
        });
        test('handles single words', () => {
            expect(toUpperCase('hello')).toBe('HELLO');
            expect(toUpperCase('HELLO')).toBe('HELLO');
        });
        test('handles empty and whitespace strings', () => {
            expect(toUpperCase('')).toBe('');
            expect(toUpperCase('   ')).toBe('');
        });
        test('trims leading and trailing whitespace', () => {
            expect(toUpperCase('  hello world  ')).toBe('HELLO_WORLD');
        });
    });
});