import org.testng.Assert;

import org.testng.annotations.Test;

public class RemoveInstanceOfCharInString {

/**

* This test validates the input String and Input character passed to the method

*/

@Test(expectedExceptions=IllegalArgumentException.class)

public void testInvalidInputs(){

RemoveInstance removeInstanceTest = new RemoveInstance();

removeInstanceTest.builtInFusolveInOneLine(null, null);

removeInstanceTest.iterate(null, null);

removeInstanceTest.builtInFusolveInOneLine("", 'a');

removeInstanceTest.iterate("", ' ');

}

/**

* This test validates the 1. Iterate through the String, one character at a time condition

*/

@Test

public void testIterativeApproach(){

RemoveInstance removeOccurences = new RemoveInstance();

String outputBasic = removeOccurences.iterate("javaprogram", 'a');

Assert.assertEquals("jvprogrm", outputBasic);

String outputWithNumber = removeOccurences.iterate("javaprogram123123", '1');

Assert.assertEquals("javaprogram2323", outputWithNumber);

String outputWithSpace = removeOccurences.iterate("java program string", ' ');

Assert.assertEquals("javaprogramstring", outputWithSpace);

String outputWithSpecialChar = removeOccurences.iterate("java-program-string", '-');

Assert.assertEquals("javaprogramstring", outputWithSpecialChar);

}

/**

+ * This test validates the 2. Find a method in the String class that can solve this in one line condition

+ */

@Test

public void testBuiltInFunction(){

RemoveInstance removeOccurences = new RemoveInstance();

String outputBasic = removeOccurences.builtInFusolveInOneLine("javaprogram", 'a');

Assert.assertEquals("jvprogrm", outputBasic);

String outputWithNumber = removeOccurences.builtInFusolveInOneLine("javaprogram123123", '1');

Assert.assertEquals("javaprogram2323", outputWithNumber);

String outputWithSpace = removeOccurences.builtInFusolveInOneLine("java program string", ' ');

Assert.assertEquals("javaprogramstring", outputWithSpace);

String outputWithSpecialChar = removeOccurences.builtInFusolveInOneLine("java-program-string", '-');

Assert.assertEquals("javaprogramstring", outputWithSpecialChar);

}

}