Added unit test for Utils.buildMapFromKeyValuePairs

- Fixed a bug in buildMapFromKeyValuePairs

Author: aforcier

WordPressEditor/src/androidTest/java/org/wordpress/android/editor/UtilsTest.java

@@ -12,6 +12,7 @@
 import java.util.Set;
 
 import static org.junit.Assert.assertEquals;
+import static org.wordpress.android.editor.Utils.buildMapFromKeyValuePairs;
 import static org.wordpress.android.editor.Utils.getChangeMapFromSets;
 import static org.wordpress.android.editor.Utils.splitDelimitedString;
 
@@ -34,6 +35,40 @@ public void testSplitDelimitedString() {
         assertEquals(Collections.emptySet(), splitDelimitedString("", "~"));
     }
 
+    @Test
+    public void testBuildMapFromKeyValuePairs() {
+        Set<String> keyValueSet = new HashSet<>();
+        Map<String, String> expectedMap = new HashMap<>();
+
+        // Test normal usage
+        keyValueSet.add("id=test");
+        keyValueSet.add("name=example");
+
+        expectedMap.put("id", "test");
+        expectedMap.put("name", "example");
+
+        assertEquals(expectedMap, buildMapFromKeyValuePairs(keyValueSet));
+
+        // Test mixed valid and invalid entries
+        keyValueSet.clear();
+        keyValueSet.add("test");
+        keyValueSet.add("name=example");
+
+        expectedMap.clear();
+        expectedMap.put("name", "example");
+
+        assertEquals(expectedMap, buildMapFromKeyValuePairs(keyValueSet));
+
+        // Test invalid entry
+        keyValueSet.clear();
+        keyValueSet.add("test");
+
+        assertEquals(Collections.emptyMap(), buildMapFromKeyValuePairs(keyValueSet));
+
+        // Test empty sets
+        assertEquals(Collections.emptyMap(), buildMapFromKeyValuePairs(Collections.<String>emptySet()));
+    }
+
     @Test
     public void testGetChangeMapFromSets() {
         Set<String> oldSet = new HashSet<>();

WordPressEditor/src/main/java/org/wordpress/android/editor/Utils.java

@@ -75,7 +75,9 @@ public static Map<String, String> buildMapFromKeyValuePairs(Set<String> keyValue
         Map<String, String> selectionArgs = new HashMap<>();
         for (String pair : keyValueSet) {
             String[] splitString = pair.split("=");
-            selectionArgs.put(splitString[0], splitString[1]);
+            if (splitString.length == 2) {
+                selectionArgs.put(splitString[0], splitString[1]);
+            }
         }
         return selectionArgs;
     }