Question: This is a Java Code, you are only creating unit test for Validate and ConvertToBinary methods. Please create at least 2 test for each method
This is a Java Code, you are only creating unit test for Validate and ConvertToBinary methods. Please create at least 2 test for each method and check to see if they are successful. I have inserted some example unit test as well.
CONVERT SERVICE CLASS:
public class ConvertService {
private Boolean isValid;
private long intValue;
private String hexValue;
private String binaryValue;
public ConvertService(String binaryValue) {
this.binaryValue = binaryValue;
Validate(binaryValue);
if (this.isValid) {
ConvertToInt(binaryValue);
ConvertToHex(binaryValue);
}
}
public ConvertService(long intValue) {
this.intValue = intValue;
Validate(intValue);
if (this.isValid) {
ConvertToBinary(intValue);
ConvertToHex(this.binaryValue);
}
}
public boolean IsValid() {
return isValid;
}
public String BinaryValue() {
return binaryValue;
}
public long IntegerValue() {
return intValue;
}
public String HexadecimalValue() {
return hexValue;
}
/*
* Used when the ConvertService(String binaryValue) constructor is used.
* Validate that the input value is not blank, and less than 32 characters long.
* Validate that the input value is only 1s and 0s.
*/
private void Validate (String value) {
Boolean isValid = true;
if (!is1sAnd0sOnly(value)) {
isValid = false;
}
if (!isProperLength(value)) {
isValid = false;
}
this.isValid = isValid;
}
/*
* Used when the ConvertService(long intvalue) constructor is used.
* Validate that the input value positive and less than 4294967295L
* Note: 4294967295L = FFFFFFFF
*/
//we have to test this
private void Validate (long value) {
Boolean isValid = true;
if (value 4294967295L)
isValid = false;
this.isValid = isValid;
}
private boolean is1sAnd0sOnly (String str) {
if (str.matches("^[01]+$")) {
return true;
}
return false;
}
private boolean isNullEmptyBlank(String str){
if (str == null || str.equals("") || str.trim().equals(""))
return true;
return false;
}
private boolean isProperLength (String str) {
if (isNullEmptyBlank(str) ||
str.length()
return true;
}
return false;
}
private void ConvertToInt(String value) {
long iValue = 0L;
for (int i=0; i long multiplier = (long)Math.pow(2, value.length() - 1 - i); if (value.charAt(i) == '1') { iValue += multiplier; } } this.intValue = iValue; } private void ConvertToHex(String value) { String hexValue = ""; //Fill the left size of the value with 0's so the length is a multiple of four. int leftover = value.length() % 4; if (leftover != 0) { for (int i=0; i value = "0" + value; } } for (int i=0; i //a nibble is 4 bits String nibble = value.substring(i*4, (i*4)+4); if (nibble.equals("0000")) { hexValue = hexValue + "0"; } else if (nibble.equals("0001")) { hexValue = hexValue + "1"; } else if (nibble.equals("0010")) { hexValue = hexValue + "2"; } else if (nibble.equals("0011")) { hexValue = hexValue + "3"; } else if (nibble.equals("0100")) { hexValue = hexValue + "4"; } else if (nibble.equals("0101")) { hexValue = hexValue + "5"; } else if (nibble.equals("0110")) { hexValue = hexValue + "6"; } else if (nibble.equals("0111")) { hexValue = hexValue + "7"; } else if (nibble.equals("1000")) { hexValue = hexValue + "8"; } else if (nibble.equals("1001")) { hexValue = hexValue + "9"; } else if (nibble.equals("1010")) { hexValue = hexValue + "A"; } else if (nibble.equals("1011")) { hexValue = hexValue + "B"; } else if (nibble.equals("1100")) { hexValue = hexValue + "C"; } else if (nibble.equals("1101")) { hexValue = hexValue + "D"; } else if (nibble.equals("1110")) { hexValue = hexValue + "E"; } else if (nibble.equals("1111")) { hexValue = hexValue + "F"; } } this.hexValue = hexValue; } // we have to include this void ConvertToBinary(long value) { String bValue = ""; for (int i=32; i>0; i--) { long multiplier = (long)Math.pow(2, i); if (value > multiplier) { bValue = bValue + "1"; value = value - multiplier; } else { bValue = bValue + "0"; } } this.binaryValue = bValue; } } CONVERT TO SERVICE TEST Class: import static org.junit.Assert.assertEquals; import org.junit.Test; public class ConvertServiceTest { @Test public void ConvertService_SuccessTest() { String val = "1010"; ConvertService bs = new ConvertService(val); assertEquals(true, bs.IsValid()); assertEquals(val, bs.BinaryValue()); assertEquals(10, bs.IntegerValue()); assertEquals("A", bs.HexadecimalValue()); } @Test public void ConvertService_Success_Short_0() { String val = "0"; ConvertService bs = new ConvertService(val); assertEquals(true, bs.IsValid()); assertEquals(val, bs.BinaryValue()); assertEquals(0, bs.IntegerValue()); assertEquals("0", bs.HexadecimalValue()); } @Test public void ConvertService_Success_32Bits_AllHexValues1() { //Test all the values from 0 to 7 String val = "00000001001000110100010101100111"; ConvertService bs = new ConvertService(val); assertEquals(val, bs.BinaryValue()); assertEquals(19088743, bs.IntegerValue()); assertEquals("01234567", bs.HexadecimalValue()); } @Test public void ConvertService_Success_32Bits_AllHexValues2() { //Test all the values from 8 to 15 String val = "10001001101010111100110111101111"; ConvertService bs = new ConvertService(val); assertEquals(val, bs.BinaryValue()); assertEquals(2309737967L, bs.IntegerValue()); assertEquals("89ABCDEF", bs.HexadecimalValue()); } } App Class: public class App { public static void main(String[] args) throws Exception { System.out.println("Hello, World!"); ConvertService binaryService = new ConvertService("10000000"); System.out.println(binaryService.HexadecimalValue()); ConvertService binaryTest = new ConvertService("10000000"); System.out.println(binaryTest.IntegerValue()); } }
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