/*
    * SPDX-FileCopyrightText: Copyright (c) 2011-2025 Yegor Bugayenko
    * SPDX-License-Identifier: MIT
    */
   package com.jcabi.http.request;
   
   import com.jcabi.http.Request;
   import com.jcabi.http.response.RestResponse;
   import jakarta.ws.rs.core.HttpHeaders;
  import jakarta.ws.rs.core.MediaType;
  import java.io.ByteArrayInputStream;
  import java.net.HttpURLConnection;
  import java.net.URI;
  import java.nio.charset.StandardCharsets;
  import org.hamcrest.MatcherAssert;
  import org.hamcrest.Matchers;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  /**
   * Test case for {@link FakeRequest}.
   * @since 1.0
   */
  final class FakeRequestTest {
  
      /**
       * FakeRequest can fetch a fake response.
       * @throws Exception If something goes wrong inside
       */
      @Test
      void sendsHttpRequestAndProcessesHttpResponse() throws Exception {
          this.generateMainRequest()
              .withBody("how are you?")
              .uri().path("/helloall").back()
              .method(Request.POST)
              .fetch().as(RestResponse.class)
              .assertStatus(HttpURLConnection.HTTP_OK)
              .assertHeader(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN)
              .assertBody(Matchers.containsString("are you?"));
      }
  
      /**
       * FakeRequest can fetch a fake response with binary response.
       * @throws Exception If something goes wrong inside.
       */
      @Test
      void sendsHttpRequestAndProcessesHttpBinaryResponse()
          throws Exception {
          final byte[] content = "Binary body content".getBytes();
          this.generateMainRequest()
              .withBody(content)
              .uri().path("/binContent").back()
              .method(Request.POST)
              .fetch().as(RestResponse.class)
              .assertStatus(HttpURLConnection.HTTP_OK)
              .assertHeader(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN)
              .assertBinary(Matchers.equalTo(content));
      }
  
      /**
       * FakeRequest can change URI.
       * @throws Exception If something goes wrong inside
       */
      @Test
      void changesUri() throws Exception {
          MatcherAssert.assertThat(
              "should ends with 'facebook.com/'",
              new FakeRequest()
                  .uri().set(new URI("http://facebook.com")).back()
                  .uri().get().toString(),
              Matchers.endsWith("facebook.com/")
          );
      }
  
      /**
       * FakeRequest can change URI in response.
       * @throws Exception If something goes wrong inside
       */
      @Test
      void changesUriInResponse() throws Exception {
          MatcherAssert.assertThat(
              "should contains 'google.com'",
              new FakeRequest()
                  .uri().set(new URI("http://google.com")).back()
                  .fetch().back()
                  .uri().get().toString(),
              Matchers.containsString("google.com")
          );
      }
  
      /**
       * FakeRequest.fetch(InputStream) throws an exception if a non-empty body
       * has been previously set.
       */
      @Test
      void fetchThrowsExceptionWhenBodyIsNotEmpty() {
          Assertions.assertThrows(
              IllegalStateException.class,
              () -> new FakeRequest()
                 .withStatus(HttpURLConnection.HTTP_OK)
                 .withBody("blah")
                 .fetch(
                     new ByteArrayInputStream(
                         "foo".getBytes(StandardCharsets.UTF_8)
                     )
                 )
         );
     }
 
     /**
      * FakeRequest returns the Response Body if the Request Body is set.
      * @throws Exception If something goes wrong inside.
      * @link https://github.com/jcabi/jcabi-http/issues/47
      */
     @Test
     void fakeRequestReturnsResponseBody() throws Exception {
         final String response = "the response body";
         final String request = "the request body";
         new FakeRequest().withBody(response)
             .body().set(request).back()
             .fetch()
             .as(RestResponse.class)
             .assertBody(
                 Matchers.allOf(
                     Matchers.is(response),
                     Matchers.not(Matchers.is(request))
                 )
             );
     }
 
     /**
      * FakeRequest can identify itself uniquely.
      */
     @Test
     void identifiesUniquely() {
         MatcherAssert.assertThat(
             "should not equals",
             new FakeRequest().header("header-1", "value-1"),
             Matchers.not(
                 Matchers.equalTo(
                     new FakeRequest().header("header-2", "value-2")
                 )
             )
         );
         MatcherAssert.assertThat(
             "should equals",
             new FakeRequest(),
             Matchers.equalTo(new FakeRequest())
         );
     }
 
     /**
      * Helper method that generates a FakeRequest.
      * @return An instance of FakeRequest.
      */
     private FakeRequest generateMainRequest() {
         return new FakeRequest()
             .withStatus(HttpURLConnection.HTTP_OK)
             .withReason("OK")
             .withHeader(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN);
     }
 
 }