From 1226733455cc9e8082bd48f152cf5e4e64cf51dc Mon Sep 17 00:00:00 2001
From: Teryk Bellahsene <teryk.bellahsene@sonarsource.com>
Date: Thu, 18 Feb 2016 16:05:24 +0100
Subject: SONAR-7135 WS api/measures/component_tree sort by metric consistent
 for component measureless

---
 .../sonar/server/measure/ws/ComponentTreeSort.java | 10 +++----
 .../server/measure/ws/ComponentTreeSortTest.java   | 32 +++++++++++++++++++---
 2 files changed, 32 insertions(+), 10 deletions(-)

diff --git a/server/sonar-server/src/main/java/org/sonar/server/measure/ws/ComponentTreeSort.java b/server/sonar-server/src/main/java/org/sonar/server/measure/ws/ComponentTreeSort.java
index b99ec27a3b3..6c136b2f490 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/measure/ws/ComponentTreeSort.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/measure/ws/ComponentTreeSort.java
@@ -87,13 +87,12 @@ class ComponentTreeSort {
   }
 
   private static Ordering<ComponentDtoWithSnapshotId> stringOrdering(boolean isAscending, Function<ComponentDtoWithSnapshotId, String> function) {
-    Ordering<String> ordering = Ordering.from(CASE_INSENSITIVE_ORDER)
-      .nullsLast();
+    Ordering<String> ordering = Ordering.from(CASE_INSENSITIVE_ORDER);
     if (!isAscending) {
       ordering = ordering.reverse();
     }
 
-    return ordering.onResultOf(function);
+    return ordering.nullsLast().onResultOf(function);
   }
 
   /**
@@ -129,14 +128,13 @@ class ComponentTreeSort {
 
   private static Ordering<ComponentDtoWithSnapshotId> numericalMetricOrdering(boolean isAscending, @Nullable MetricDto metric,
     Table<String, MetricDto, MeasureDto> measuresByComponentUuidAndMetric) {
-    Ordering<Double> ordering = Ordering.natural()
-      .nullsLast();
+    Ordering<Double> ordering = Ordering.natural();
 
     if (!isAscending) {
       ordering = ordering.reverse();
     }
 
-    return ordering.onResultOf(new ComponentDtoWithSnapshotIdToNumericalMeasureValue(metric, measuresByComponentUuidAndMetric));
+    return ordering.nullsLast().onResultOf(new ComponentDtoWithSnapshotIdToNumericalMeasureValue(metric, measuresByComponentUuidAndMetric));
   }
 
   private static class ComponentDtoWithSnapshotIdToNumericalMeasureValue implements Function<ComponentDtoWithSnapshotId, Double> {
diff --git a/server/sonar-server/src/test/java/org/sonar/server/measure/ws/ComponentTreeSortTest.java b/server/sonar-server/src/test/java/org/sonar/server/measure/ws/ComponentTreeSortTest.java
index eed4d78fc97..13439ef9655 100644
--- a/server/sonar-server/src/test/java/org/sonar/server/measure/ws/ComponentTreeSortTest.java
+++ b/server/sonar-server/src/test/java/org/sonar/server/measure/ws/ComponentTreeSortTest.java
@@ -111,23 +111,47 @@ public class ComponentTreeSortTest {
   }
 
   @Test
-  public void sort_by_numerical_metric_key() {
+  public void sort_by_numerical_metric_key_ascending() {
+    components.add(newComponentWithoutSnapshotId("name-without-measure", "qualifier-without-measure", "path-without-measure"));
     ComponentTreeWsRequest wsRequest = newRequest(singletonList(METRIC_SORT), true, NUM_METRIC_KEY);
 
     List<ComponentDtoWithSnapshotId> result = sortComponents(wsRequest);
 
     assertThat(result).extracting("path")
-      .containsExactly("path-1", "path-2", "path-3", "path-4", "path-5", "path-6", "path-7", "path-8", "path-9");
+      .containsExactly("path-1", "path-2", "path-3", "path-4", "path-5", "path-6", "path-7", "path-8", "path-9", "path-without-measure");
+  }
+
+  @Test
+  public void sort_by_numerical_metric_key_descending() {
+    components.add(newComponentWithoutSnapshotId("name-without-measure", "qualifier-without-measure", "path-without-measure"));
+    ComponentTreeWsRequest wsRequest = newRequest(singletonList(METRIC_SORT), false, NUM_METRIC_KEY);
+
+    List<ComponentDtoWithSnapshotId> result = sortComponents(wsRequest);
+
+    assertThat(result).extracting("path")
+      .containsExactly("path-9", "path-8", "path-7", "path-6", "path-5", "path-4", "path-3", "path-2", "path-1", "path-without-measure");
   }
 
   @Test
-  public void sort_by_textual_metric_key() {
+  public void sort_by_textual_metric_key_ascending() {
+    components.add(newComponentWithoutSnapshotId("name-without-measure", "qualifier-without-measure", "path-without-measure"));
     ComponentTreeWsRequest wsRequest = newRequest(singletonList(METRIC_SORT), true, TEXT_METRIC_KEY);
 
     List<ComponentDtoWithSnapshotId> result = sortComponents(wsRequest);
 
     assertThat(result).extracting("path")
-      .containsExactly("path-1", "path-2", "path-3", "path-4", "path-5", "path-6", "path-7", "path-8", "path-9");
+      .containsExactly("path-1", "path-2", "path-3", "path-4", "path-5", "path-6", "path-7", "path-8", "path-9", "path-without-measure");
+  }
+
+  @Test
+  public void sort_by_textual_metric_key_descending() {
+    components.add(newComponentWithoutSnapshotId("name-without-measure", "qualifier-without-measure", "path-without-measure"));
+    ComponentTreeWsRequest wsRequest = newRequest(singletonList(METRIC_SORT), false, TEXT_METRIC_KEY);
+
+    List<ComponentDtoWithSnapshotId> result = sortComponents(wsRequest);
+
+    assertThat(result).extracting("path")
+      .containsExactly("path-9", "path-8", "path-7", "path-6", "path-5", "path-4", "path-3", "path-2", "path-1", "path-without-measure");
   }
 
   @Test
-- 
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