/*******************************************************************************
 * * org.onap.aaf
 * * ===========================================================================
 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * * ===========================================================================
 * * 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
 * * 
 *  *      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.
 * * ============LICENSE_END====================================================
 * *
 * *
 ******************************************************************************/
package org.onap.aaf.cadi.util.test;

import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;
import static org.mockito.Mockito.*;
import org.junit.*;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.lang.reflect.Field;

import org.onap.aaf.cadi.util.SubStandardConsole;

public class JU_SubStandardConsole {

	private String inputString = "An input string";
	private ByteArrayOutputStream outStream;
	private ByteArrayOutputStream errStream;
	private String lineSeparator = System.lineSeparator();

	@Before
	public void setup() {
		outStream = new ByteArrayOutputStream();
		errStream = new ByteArrayOutputStream();
		System.setOut(new PrintStream(outStream));
		System.setErr(new PrintStream(errStream));
	}

	@After
	public void tearDown() {
		System.setOut(System.out);
		System.setErr(System.err);
	}

	@Test
	public void readLineTest() {
		byte[] input = inputString.getBytes();
		System.setIn(new ByteArrayInputStream(input));
		SubStandardConsole ssc = new SubStandardConsole();
		String output = ssc.readLine("%s" + lineSeparator, ">>> ");
		assertThat(output, is(inputString));
		assertThat(outStream.toString(), is(">>> " + lineSeparator));
	}

	@Test
	public void readLineTest2() {
		byte[] input = inputString.getBytes();
		System.setIn(new ByteArrayInputStream(input));
		SubStandardConsole ssc = new SubStandardConsole();
		String output = ssc.readLine("%s %s"  + lineSeparator, ">>> ", "Another argument for coverage");
		assertThat(output, is(inputString));
	}

	@Test
	public void readLineTest3() {
		byte[] input = "\n".getBytes();
		System.setIn(new ByteArrayInputStream(input));
		SubStandardConsole ssc = new SubStandardConsole();
		String output = ssc.readLine("%s" + lineSeparator, ">>> ");
		assertThat(output, is(">>> "));
		assertThat(outStream.toString(), is(">>> " + lineSeparator));
	}

	@Test
	public void readPasswordTest() {
		byte[] input = inputString.getBytes();
		System.setIn(new ByteArrayInputStream(input));
		SubStandardConsole ssc = new SubStandardConsole();
		char[] output = ssc.readPassword("%s" + lineSeparator, ">>> ");
		System.out.println(output);
		assertThat(output, is(inputString.toCharArray()));
		assertThat(outStream.toString(), is(">>> " + lineSeparator + "An input string"  + lineSeparator));
	}

	@Test
	public void printfTest() {
		byte[] input = inputString.getBytes();
		System.setIn(new ByteArrayInputStream(input));
		SubStandardConsole ssc = new SubStandardConsole();
		ssc.printf("%s", "A format specifier");
		assertThat(outStream.toString(), is("A format specifier"));
	}

	@Test
	public void throwsTest() throws IOException, NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
		BufferedReader brMock = mock(BufferedReader.class);
		when(brMock.readLine()).thenThrow(new IOException());

		SubStandardConsole ssc = new SubStandardConsole();

		Field brField = SubStandardConsole.class.getDeclaredField("br");
		brField.setAccessible(true);
		brField.set(ssc, brMock);

		assertThat(ssc.readLine(""), is(""));
		assertThat(errStream.toString(), is("uh oh..." + lineSeparator));
        errStream.reset();
		assertThat(ssc.readPassword("").length, is(0));
		assertThat(errStream.toString(), is("uh oh..." + lineSeparator));
	}

}