/*
    * 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.
   */
  package org.apache.juneau.commons.io;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.io.*;
  
  import org.apache.juneau.*;
  import org.junit.jupiter.api.*;
  
  class NoCloseWriter_Test extends TestBase {
  
  	//====================================================================================================
  	// Basic write tests
  	//====================================================================================================
  	@Test void a01_writeInt() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.write(65); // 'A'
  		wrapper.write(66); // 'B'
  		assertEquals("AB", sw.toString());
  	}
  
  	@Test void a02_writeString() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.write("test");
  		assertEquals("test", sw.toString());
  	}
  
  	@Test void a03_writeStringWithOffset() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.write("hello", 1, 3);
  		assertEquals("ell", sw.toString());
  	}
  
  	@Test void a04_writeCharArray() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.write("test".toCharArray());
  		assertEquals("test", sw.toString());
  	}
  
  	@Test void a05_writeCharArrayWithOffset() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.write("hello".toCharArray(), 1, 3);
  		assertEquals("ell", sw.toString());
  	}
  
  	//====================================================================================================
  	// append() tests
  	//====================================================================================================
  	@Test void b01_appendChar() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		var result = wrapper.append('a');
  		assertSame(sw, result); // Returns the underlying writer
  		wrapper.append('b');
  		assertEquals("ab", sw.toString());
  	}
  
  	@Test void b02_appendCharSequence() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		var result = wrapper.append("test");
  		assertSame(sw, result); // Returns the underlying writer
  		assertEquals("test", sw.toString());
  	}
  
  	@Test void b03_appendCharSequenceWithRange() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		var result = wrapper.append("hello", 1, 4);
  		assertSame(sw, result); // Returns the underlying writer
  		assertEquals("ell", sw.toString());
  	}
  
  	@Test void b04_appendNull() throws IOException {
  		var sw = new StringWriter();
  		var wrapper = new NoCloseWriter(sw);
  		wrapper.append((CharSequence)null);
  		assertEquals("null", sw.toString());
 	}
 
 	//====================================================================================================
 	// flush() tests
 	//====================================================================================================
 	@Test void c01_flush() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.write("test");
 		wrapper.flush(); // Should not throw
 		assertEquals("test", sw.toString());
 	}
 
 	@Test void c02_flush_multipleTimes() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.flush();
 		wrapper.flush();
 		wrapper.flush();
 		// Should not throw
 	}
 
 	//====================================================================================================
 	// close() tests - should not actually close
 	//====================================================================================================
 	@Test void d01_close_doesNotClose() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.write("test");
 		wrapper.close(); // Should flush but not close
 		// Should still be able to write after close
 		wrapper.write("more");
 		assertEquals("testmore", sw.toString());
 	}
 
 	@Test void d02_close_flushes() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.write("test");
 		wrapper.close();
 		// Content should be flushed
 		assertEquals("test", sw.toString());
 	}
 
 	@Test void d03_close_multipleTimes() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.close();
 		wrapper.close();
 		wrapper.close();
 		// Should not throw
 	}
 
 	//====================================================================================================
 	// toString() tests
 	//====================================================================================================
 	@Test void e01_toString() {
 		var sw = new StringWriter();
 		sw.write("test");
 		var wrapper = new NoCloseWriter(sw);
 		assertEquals("test", wrapper.toString());
 	}
 
 	//====================================================================================================
 	// Integration tests
 	//====================================================================================================
 	@Test void f01_combinedOperations() throws IOException {
 		var sw = new StringWriter();
 		var wrapper = new NoCloseWriter(sw);
 		wrapper.write('H');
 		wrapper.write("ello");
 		wrapper.append(' ');
 		wrapper.append("World");
 		wrapper.write("!", 0, 1);
 		wrapper.flush();
 		wrapper.close();
 		wrapper.write('!');
 		assertEquals("Hello World!!", sw.toString());
 	}
 }