/*
    * ====================================================================
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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
   *
   *   http://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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.hc.core5.http.message;
  
  import org.apache.hc.core5.http.Header;
  import org.apache.hc.core5.http.HttpStatus;
  import org.apache.hc.core5.http.HttpVersion;
  import org.apache.hc.core5.http.Method;
  import org.apache.hc.core5.util.CharArrayBuffer;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Tests for {@link BasicLineFormatter}.
   */
  public class TestBasicLineFormatter {
  
      private BasicLineFormatter formatter;
  
      @Before
      public void setup() {
          this.formatter = BasicLineFormatter.INSTANCE;
      }
  
      @Test
      public void testHttpVersionFormatting() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(64);
          this.formatter.formatProtocolVersion(buf, HttpVersion.HTTP_1_1);
          Assert.assertEquals("HTTP/1.1", buf.toString());
      }
  
      @Test
      public void testRLFormatting() throws Exception {
          final RequestLine requestline = new RequestLine(Method.GET.name(), "/stuff", HttpVersion.HTTP_1_1);
          final CharArrayBuffer buf = new CharArrayBuffer(64);
          this.formatter.formatRequestLine(buf, requestline);
          Assert.assertEquals("GET /stuff HTTP/1.1", buf.toString());
      }
  
      @Test
      public void testRLFormattingInvalidInput() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(64);
          final RequestLine requestline = new RequestLine(Method.GET.name(), "/stuff", HttpVersion.HTTP_1_1);
          try {
              this.formatter.formatRequestLine(null, requestline);
              Assert.fail("NullPointerException should habe been thrown");
          } catch (final NullPointerException ex) {
              // expected
          }
          try {
              this.formatter.formatRequestLine(buf, null);
              Assert.fail("NullPointerException should habe been thrown");
          } catch (final NullPointerException ex) {
              // expected
          }
      }
  
      @Test
      public void testSLFormatting() throws Exception {
          final CharArrayBuffer buf = new CharArrayBuffer(64);
          final StatusLine statusline1 = new StatusLine(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
          this.formatter.formatStatusLine(buf, statusline1);
          Assert.assertEquals("HTTP/1.1 200 OK", buf.toString());
  
          buf.clear();
          final StatusLine statusline2 = new StatusLine(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, null);
          this.formatter.formatStatusLine(buf, statusline2);
          Assert.assertEquals("HTTP/1.1 200 ", buf.toString());
          // see "testSLParseSuccess" in TestBasicLineParser:
          // trailing space is correct
      }
  
      @Test
     public void testSLFormattingInvalidInput() throws Exception {
         final CharArrayBuffer buf = new CharArrayBuffer(64);
         final StatusLine statusline = new StatusLine(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
         try {
             this.formatter.formatStatusLine(null, statusline);
             Assert.fail("NullPointerException should habe been thrown");
         } catch (final NullPointerException ex) {
             // expected
         }
         try {
             this.formatter.formatStatusLine(buf, null);
             Assert.fail("NullPointerException should habe been thrown");
         } catch (final NullPointerException ex) {
             // expected
         }
     }
 
     @Test
     public void testHeaderFormatting() throws Exception {
         final CharArrayBuffer buf = new CharArrayBuffer(64);
         final Header header1 = new BasicHeader("name", "value");
         this.formatter.formatHeader(buf, header1);
         Assert.assertEquals("name: value", buf.toString());
 
         buf.clear();
         final Header header2 = new BasicHeader("name", null);
         this.formatter.formatHeader(buf, header2);
         Assert.assertEquals("name: ", buf.toString());
     }
 
     @Test
     public void testHeaderFormattingInvalidInput() throws Exception {
         final CharArrayBuffer buf = new CharArrayBuffer(64);
         final Header header = new BasicHeader("name", "value");
         try {
             this.formatter.formatHeader(null, header);
             Assert.fail("NullPointerException should habe been thrown");
         } catch (final NullPointerException ex) {
             // expected
         }
         try {
             this.formatter.formatHeader(buf, null);
             Assert.fail("NullPointerException should habe been thrown");
         } catch (final NullPointerException ex) {
             // expected
         }
     }
 
     @Test
     public void testHeaderFormattingRequestSplitting() throws Exception {
         final CharArrayBuffer buf = new CharArrayBuffer(64);
         final Header header = new BasicHeader("Host", "apache.org\r\nOops: oops");
         formatter.formatHeader(buf, header);
         final String s = buf.toString();
         Assert.assertFalse(s.contains("\n"));
         Assert.assertEquals("Host: apache.org  Oops: oops", s);
     }
 }