Added more unit tests (#64)

* Added more unit tests
* Bump up the minor version

Author: yaozhaoy

build.gradle

@@ -28,7 +28,7 @@ allprojects {
 		targetCompatibility = '1.8'
 	}
 
-	version = '1.0.1'
+	version = '1.0.2'
 }
 
 java {

src/test/java/software/amazon/cloudwatchlogs/emf/logger/MetricsLoggerTest.java

@@ -17,6 +17,7 @@
 package software.amazon.cloudwatchlogs.emf.logger;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.*;
 
 import java.util.List;
@@ -176,6 +177,30 @@ public void testUseDefaultEnvironmentOnResolverException() {
         expectDimension("ServiceType", serviceType);
     }
 
+    @Test
+    public void testNoDefaultDimensions() {
+        MetricsLogger logger = new MetricsLogger(envProvider);
+        logger.setDimensions();
+        logger.putMetric("Count", 1);
+        logger.flush();
+        List<DimensionSet> dimensions = sink.getContext().getDimensions();
+
+        assertTrue(dimensions.size() == 0);
+        assertTrue(sink.getLogEvents().size() == 1);
+
+        String logEvent = sink.getLogEvents().get(0);
+        assertTrue(logEvent.contains("\"Dimensions\":[]"));
+    }
+
+    @Test
+    public void testNoDefaultDimensionsAfterSetDimension() {
+        MetricsLogger logger = new MetricsLogger(envProvider);
+
+        logger.setDimensions(DimensionSet.of("Name", "Test"));
+        logger.flush();
+        expectDimension("Name", "Test");
+    }
+
     private void expectDimension(String dimension, String value) {
         List<DimensionSet> dimensions = sink.getContext().getDimensions();
         assertEquals(dimensions.size(), 1);

src/test/java/software/amazon/cloudwatchlogs/emf/model/MetricDirectiveTest.java

@@ -114,6 +114,15 @@ public void testPutMultipleDimensionSets() throws JsonProcessingException {
                 "{\"Dimensions\":[[\"Region\"],[\"Instance\"]],\"Metrics\":[],\"Namespace\":\"aws-embedded-metrics\"}");
     }
 
+    @Test
+    public void testGetDimensionAfterSetDimensions() {
+        MetricDirective metricDirective = new MetricDirective();
+        metricDirective.setDefaultDimensions(DimensionSet.of("Dim", "Default"));
+        metricDirective.setDimensions(Arrays.asList(DimensionSet.of("Name", "Test")));
+
+        assertEquals(1, metricDirective.getAllDimensions().size());
+    }
+
     @Test
     public void testPutDimensionsWhenDefaultDimensionsDefined() throws JsonProcessingException {
         MetricDirective metricDirective = new MetricDirective();

src/test/java/software/amazon/cloudwatchlogs/emf/sinks/SinkShunt.java

@@ -16,18 +16,30 @@
 
 package software.amazon.cloudwatchlogs.emf.sinks;
 
+import java.util.List;
 import software.amazon.cloudwatchlogs.emf.model.MetricsContext;
 
 public class SinkShunt implements ISink {
 
     private MetricsContext context;
 
+    private List<String> logEvents;
+
     @Override
     public void accept(MetricsContext context) {
         this.context = context;
+        try {
+            this.logEvents = context.serialize();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
     }
 
     public MetricsContext getContext() {
         return context;
     }
+
+    public List<String> getLogEvents() {
+        return this.logEvents;
+    }
 }