feat: add redirect method

tests/test_redirect_functionality.v

@@ -0,0 +1,208 @@
+import hono
+import net.http
+
+// 重定向功能测试
+fn redirect_basic_test() bool {
+	mut c := hono.Context.new(
+		http.Request{
+			method: .get
+			url: '/test'
+		},
+		map[string]string{},
+		map[string]string{},
+		''
+	)
+	
+	response := c.redirect('https://example.com')
+	
+	if response.status_code != 302 {
+		return false
+	}
+	
+	location := response.header.get_custom('Location') or { '' }
+	if location != 'https://example.com' {
+		return false
+	}
+	
+	if response.body != '' {
+		return false
+	}
+	
+	return true
+}
+
+fn redirect_with_status_test() bool {
+	mut c := hono.Context.new(
+		http.Request{
+			method: .get
+			url: '/test'
+		},
+		map[string]string{},
+		map[string]string{},
+		''
+	)
+	
+	response := c.redirect('https://example.com', 301)
+	
+	if response.status_code != 301 {
+		return false
+	}
+	
+	location := response.header.get_custom('Location') or { '' }
+	if location != 'https://example.com' {
+		return false
+	}
+	
+	if response.body != '' {
+		return false
+	}
+	
+	return true
+}
+
+fn redirect_multiple_status_codes_test() bool {
+	status_codes := [301, 302, 303, 307, 308]
+	
+	for code in status_codes {
+		mut c := hono.Context.new(
+			http.Request{
+				method: .get
+				url: '/test'
+			},
+			map[string]string{},
+			map[string]string{},
+			''
+		)
+		
+		response := c.redirect('https://example.com', code)
+		
+		if response.status_code != code {
+			return false
+		}
+		
+		location := response.header.get_custom('Location') or { '' }
+		if location != 'https://example.com' {
+			return false
+		}
+		
+		if response.body != '' {
+			return false
+		}
+	}
+	
+	return true
+}
+
+fn redirect_relative_url_test() bool {
+	mut c := hono.Context.new(
+		http.Request{
+			method: .get
+			url: '/test'
+		},
+		map[string]string{},
+		map[string]string{},
+		''
+	)
+	
+	response := c.redirect('/relative-path')
+	
+	if response.status_code != 302 {
+		return false
+	}
+	
+	location := response.header.get_custom('Location') or { '' }
+	if location != '/relative-path' {
+		return false
+	}
+	
+	return true
+}
+
+fn redirect_with_existing_headers_test() bool {
+	mut c := hono.Context.new(
+		http.Request{
+			method: .get
+			url: '/test'
+		},
+		map[string]string{},
+		map[string]string{},
+		''
+	)
+	
+	// Set some existing headers
+	c.headers['X-Custom-Header'] = 'custom-value'
+	c.headers['Cache-Control'] = 'no-cache'
+	
+	response := c.redirect('https://example.com')
+	
+	if response.status_code != 302 {
+		return false
+	}
+	
+	location := response.header.get_custom('Location') or { '' }
+	if location != 'https://example.com' {
+		return false
+	}
+	
+	custom_header := response.header.get_custom('X-Custom-Header') or { '' }
+	if custom_header != 'custom-value' {
+		return false
+	}
+	
+	cache_control := response.header.get_custom('Cache-Control') or { '' }
+	if cache_control != 'no-cache' {
+		return false
+	}
+	
+	return true
+}
+
+// 测试统计结构
+struct TestStats {
+mut:
+	total_tests int
+	passed_tests int
+	failed_tests int
+}
+
+fn (mut stats TestStats) run_test(test_name string, test_func fn() bool) {
+	stats.total_tests++
+	print('🧪 ${test_name}... ')
+	
+	if test_func() {
+		stats.passed_tests++
+		println('✅')
+	} else {
+		stats.failed_tests++
+		println('❌')
+	}
+}
+
+fn (stats TestStats) print_summary() {
+	println('\n=== 重定向测试总结 ===')
+	println('总测试数: ${stats.total_tests}')
+	println('通过: ${stats.passed_tests}')
+	println('失败: ${stats.failed_tests}')
+	
+	if stats.failed_tests == 0 {
+		println('🎉 所有重定向测试通过！')
+	} else {
+		println('⚠️  有 ${stats.failed_tests} 个测试失败')
+	}
+}
+
+fn main() {
+	println('🚀 开始重定向功能测试...\n')
+	
+	mut stats := TestStats{}
+	
+	// 运行所有重定向测试
+	stats.run_test('基本重定向 (302)', redirect_basic_test)
+	stats.run_test('自定义状态码重定向 (301)', redirect_with_status_test)
+	stats.run_test('多种状态码测试', redirect_multiple_status_codes_test)
+	stats.run_test('相对路径重定向', redirect_relative_url_test)
+	stats.run_test('保持现有头部信息', redirect_with_existing_headers_test)
+	
+	// 打印测试总结
+	stats.print_summary()
+}