/*
 * Copyright 2012-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.test.web.client;

import java.net.URI;
import java.util.HashMap;
import java.util.Map;

import org.junit.Test;

import org.springframework.mock.env.MockEnvironment;
import org.springframework.web.util.UriTemplateHandler;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

/**
 * Tests for {@link LocalHostUriTemplateHandler}.
 *
 * @author Phillip Webb
 * @author Andy Wilkinson
 * @author Eddú Meléndez
 */
public class LocalHostUriTemplateHandlerTests {

	@Test
	public void createWhenEnvironmentIsNullShouldThrowException() {
		assertThatIllegalArgumentException()
				.isThrownBy(() -> new LocalHostUriTemplateHandler(null))
				.withMessageContaining("Environment must not be null");
	}

	@Test
	public void createWhenSchemeIsNullShouldThrowException() {
		assertThatIllegalArgumentException().isThrownBy(
				() -> new LocalHostUriTemplateHandler(new MockEnvironment(), null))
				.withMessageContaining("Scheme must not be null");
	}

	@Test
	public void createWhenHandlerIsNullShouldThrowException() {
		assertThatIllegalArgumentException()
				.isThrownBy(() -> new LocalHostUriTemplateHandler(new MockEnvironment(),
						"http", null))
				.withMessageContaining("Handler must not be null");
	}

	@Test
	public void getRootUriShouldUseLocalServerPort() {
		MockEnvironment environment = new MockEnvironment();
		environment.setProperty("local.server.port", "1234");
		LocalHostUriTemplateHandler handler = new LocalHostUriTemplateHandler(
				environment);
		assertThat(handler.getRootUri()).isEqualTo("http://localhost:1234");
	}

	@Test
	public void getRootUriWhenLocalServerPortMissingShouldUsePort8080() {
		MockEnvironment environment = new MockEnvironment();
		LocalHostUriTemplateHandler handler = new LocalHostUriTemplateHandler(
				environment);
		assertThat(handler.getRootUri()).isEqualTo("http://localhost:8080");
	}

	@Test
	public void getRootUriUsesCustomScheme() {
		MockEnvironment environment = new MockEnvironment();
		LocalHostUriTemplateHandler handler = new LocalHostUriTemplateHandler(environment,
				"https");
		assertThat(handler.getRootUri()).isEqualTo("https://localhost:8080");
	}

	@Test
	public void getRootUriShouldUseContextPath() {
		MockEnvironment environment = new MockEnvironment();
		environment.setProperty("server.servlet.context-path", "/foo");
		LocalHostUriTemplateHandler handler = new LocalHostUriTemplateHandler(
				environment);
		assertThat(handler.getRootUri()).isEqualTo("http://localhost:8080/foo");
	}

	@Test
	public void expandShouldUseCustomHandler() {
		MockEnvironment environment = new MockEnvironment();
		UriTemplateHandler uriTemplateHandler = mock(UriTemplateHandler.class);
		Map<String, ?> uriVariables = new HashMap<>();
		URI uri = URI.create("https://www.example.com");
		given(uriTemplateHandler.expand("https://localhost:8080/", uriVariables))
				.willReturn(uri);
		LocalHostUriTemplateHandler handler = new LocalHostUriTemplateHandler(environment,
				"https", uriTemplateHandler);
		assertThat(handler.expand("/", uriVariables)).isEqualTo(uri);
		verify(uriTemplateHandler).expand("https://localhost:8080/", uriVariables);
	}

}
