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update junit testing for IsUnique class#54

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4 changes: 2 additions & 2 deletionssrc/main/java/com/ctci/arraysandstrings/IsUnique.java
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Original file line numberDiff line numberDiff line change
Expand Up@@ -6,7 +6,7 @@
*/
public class IsUnique {

private static boolean hasAllUniqueCharacters(String str) {
public static boolean hasAllUniqueCharacters(String str) {
if (str == null || str.length() > 128) return false;

boolean[] charSet = new boolean[128]; // assuming the string contains only ASCII characters
Expand All@@ -20,7 +20,7 @@ private static boolean hasAllUniqueCharacters(String str) {
return true;
}

private static boolean hasAllUniqueCharactersWhenStringContainsAllLowercase(String s) {
public static boolean hasAllUniqueCharactersWhenStringContainsAllLowercase(String s) {
int checker = 0;
for (int i = 0; i < s.length(); i++) {
int charValue = s.charAt(i) - 'a';
Expand Down
34 changes: 34 additions & 0 deletionssrc/main/java/com/ctci/arraysandstrings/TestIsUnique.java
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,34 @@
package com.ctci.arraysandstrings;

import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public class TestIsUnique {
@Test
public void TesthasAllUniqueCharacters() {
String TC1 = "qwertyuiop123456@#$%";
String TC2 = "aaaaaaaaa";

boolean R1 = IsUnique.hasAllUniqueCharacters(TC1);
boolean R2 = IsUnique.hasAllUniqueCharacters(TC2);

assertTrue(R1);
assertFalse(R2);
}
@Test
public void TesthasAllUniqueCharactersWhenStringContainsAllLowercase() {
String TC1 = "qwertyuiop";
String TC2 = "aaaaaaaaa";
String TC3 = "QwertHfakjf";

boolean R1 = IsUnique.hasAllUniqueCharactersWhenStringContainsAllLowercase(TC1);
boolean R2 = IsUnique.hasAllUniqueCharactersWhenStringContainsAllLowercase(TC2);
boolean R3 = IsUnique.hasAllUniqueCharactersWhenStringContainsAllLowercase(TC3);

assertTrue(R1);
assertFalse(R2);
assertFalse(R3);

}
}
15 changes: 15 additions & 0 deletionssrc/main/java/com/ctci/arraysandstrings/testMain.java
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,15 @@
package com.ctci.arraysandstrings;

import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;

public class testMain {
public static void main(String[] args) {
Result result = JUnitCore.runClasses(TestIsUnique.class);
for (Failure failure: result.getFailures()) {
System.out.println(failure.toString());
}
System.out.println(result.wasSuccessful());
}
}
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