Add test cases

src/main/java/se/cygni/palmithor/tdd/StringUtils.java

@@ -4,7 +4,25 @@ public class StringUtils {
 
 
     public boolean isPalindrome(final String str) {
-        throw new RuntimeException("Not yet implemented");
+
+        if(str == null)  {
+            return false;
+        }
+
+
+        for(int leftIndex = 0; leftIndex != str.length() / 2; leftIndex++){
+
+            int rightIndex = str.length() - 1 - leftIndex;
+
+            if(str.charAt(leftIndex) != str.charAt(rightIndex)){
+                return false;
+            }
+
+        }
+
+        return true;
+
+        //throw new RuntimeException("Not yet implemented");
     }
 
 
@@ -15,6 +33,13 @@ public boolean isPalindrome(final String str) {
      * @return true if str is null, empty or whitespace only, otherwise false
      */
     public boolean isBlank(final String str) {
-        throw new RuntimeException("Not yet implemented");
+
+        if(str == null){
+            return true;
+        }
+
+        return str.trim().isEmpty();
+
+
     }
 }

src/test/java/se/cygni/palmithor/tdd/CalculatorTest.java

@@ -13,7 +13,11 @@ public class CalculatorTest {
 
     @Test
     public void test() {
-        assertThat(calculator.sumAll().get()).isEqualTo(1); // TODO failing on purpose please fix
+        assertThat(calculator.sumAll().get()).isEqualTo(0);
+        assertThat(calculator.sumAll(1,2).get()).isEqualTo(3);
+        assertThat(calculator.sumAll(null).isEmpty()).isTrue();
+
+
     }
 
 

src/test/java/se/cygni/palmithor/tdd/StringUtilsTest.java

@@ -23,6 +23,9 @@ public void isPalindrome() {
      */
     @Test
     public void isBlank() {
-        // stringUtils.isBlank()
+        assertThat(stringUtils.isBlank(null)).isTrue();
+        assertThat(stringUtils.isBlank("")).isTrue();
+        assertThat(stringUtils.isBlank("   ")).isTrue();
+        assertThat(stringUtils.isBlank(" asd")).isFalse();
     }
 }