Sort map items alphabetically before calculating blueId.

Author: tpawicki

src/main/java/blue/language/utils/BlueIdCalculator.java

@@ -51,7 +51,7 @@ private String calculateMap(Map<String, Object> map) {
             return (String) map.get(OBJECT_BLUE_ID);
         }
 
-        Map<String, Object> hashes = new LinkedHashMap<>();
+        Map<String, Object> hashes = new TreeMap<>(String::compareTo);
         for (Map.Entry<String, Object> entry : map.entrySet()) {
             String key = entry.getKey();
             if (OBJECT_NAME.equals(key) || OBJECT_VALUE.equals(key) || OBJECT_DESCRIPTION.equals(key)) {

src/test/java/blue/language/utils/BlueIdCalculatorTest.java

@@ -124,6 +124,13 @@ public void testSortingOfObjectProperties() {
                 assertEquals(blueId2, blueId);
         }
 
+        @Test
+        public void testLexicographicSorting() {
+                Map map = JSON_MAPPER.readValue("{\"z\":1,\"aa\":65,\"q\":3,\"12\":3.5,\"a\":55,\"ab\":\"sad\"}", Map.class);
+                String expectedBlueId = "hash({12={blueId=hash(3.5)}, a={blueId=hash(55)}, aa={blueId=hash(65)}, ab={blueId=hash(sad)}, q={blueId=hash(3)}, z={blueId=hash(1)}})";
+                assertEquals(expectedBlueId, new BlueIdCalculator(fakeHashValueProvider()).calculate(map));
+        }
+
         @Test
         public void testInteger() {
                 String yaml = "num: 36";