SONAR-2464 Metric.Builder must set best and worst values when type percent

2 files changed, 20 insertions, 0 deletions

diff --git a/sonar-plugin-api/src/main/java/org/sonar/api/measures/Metric.java b/sonar-plugin-api/src/main/java/org/sonar/api/measures/Metric.java
index a26fe7a481a..91210908704 100644
--- a/sonar-plugin-api/src/main/java/org/sonar/api/measures/Metric.java
+++ b/sonar-plugin-api/src/main/java/org/sonar/api/measures/Metric.java
@@ -663,6 +663,10 @@ public class Metric implements ServerExtension, BatchExtension {
     }
 
     public Metric create() {
+      if (ValueType.PERCENT.equals(this.type)) {
+        this.bestValue = (direction == DIRECTION_BETTER ? 100.0 : 0.0);
+        this.worstValue = (direction == DIRECTION_BETTER ? 0.0 : 100.0);
+      }
       return new Metric(key, name, type, description, direction, domain, qualitative, worstValue, bestValue, optimizedBestValue, hidden, formula);
     }
   }
diff --git a/sonar-plugin-api/src/test/java/org/sonar/api/measures/MetricTest.java b/sonar-plugin-api/src/test/java/org/sonar/api/measures/MetricTest.java
index 32cc7c0fa53..1afef72fdc9 100644
--- a/sonar-plugin-api/src/test/java/org/sonar/api/measures/MetricTest.java
+++ b/sonar-plugin-api/src/test/java/org/sonar/api/measures/MetricTest.java
@@ -55,4 +55,20 @@ public class MetricTest {
     assertThat(metric.isHidden(), is(false));
     assertThat(metric.isOptimizedBestValue(), is(false));
   }
+
+  @Test
+  public void shouldCreatePercentMetricWithDefaultValues() {
+    Metric better = new Metric.Builder("foo", "Foo", Metric.ValueType.PERCENT)
+        .setDirection(Metric.DIRECTION_BETTER)
+        .create();
+    Metric worst = new Metric.Builder("foo", "Foo", Metric.ValueType.PERCENT)
+        .setDirection(Metric.DIRECTION_WORST)
+        .create();
+
+    assertThat(better.getBestValue(), is(100.0));
+    assertThat(better.getWorstValue(), is(0.0));
+    assertThat(worst.getBestValue(), is(0.0));
+    assertThat(worst.getWorstValue(), is(100.0));
+  }
+
 }