]> source.dussan.org Git - sonarqube.git/commitdiff
add support for Views Component tree to LanguageDistributionMeasuresStep
authorSébastien Lesaint <sebastien.lesaint@sonarsource.com>
Tue, 25 Aug 2015 09:33:23 +0000 (11:33 +0200)
committerSébastien Lesaint <sebastien.lesaint@sonarsource.com>
Sat, 29 Aug 2015 13:58:41 +0000 (15:58 +0200)
server/sonar-server/src/main/java/org/sonar/server/computation/step/LanguageDistributionMeasuresStep.java
server/sonar-server/src/test/java/org/sonar/server/computation/step/LanguageDistributionMeasuresStepTest.java [deleted file]
server/sonar-server/src/test/java/org/sonar/server/computation/step/ReportLanguageDistributionMeasuresStepTest.java [new file with mode: 0644]
server/sonar-server/src/test/java/org/sonar/server/computation/step/ViewsLanguageDistributionMeasuresStepTest.java [new file with mode: 0644]

index b4665b4721942bd13a6afbd12b7ed30bc2ee80dd..afdb75a1b7a3b43a2c35c9bb2456a974df8e6b74 100644 (file)
@@ -25,14 +25,17 @@ import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Multiset;
 import com.google.common.collect.TreeMultiset;
+import java.util.Map;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import org.sonar.api.measures.CoreMetrics;
+import org.sonar.api.utils.KeyValueFormat;
+import org.sonar.server.computation.component.Component;
 import org.sonar.server.computation.component.PathAwareCrawler;
 import org.sonar.server.computation.component.TreeRootHolder;
 import org.sonar.server.computation.formula.Counter;
-import org.sonar.server.computation.formula.CreateMeasureContext;
 import org.sonar.server.computation.formula.CounterInitializationContext;
+import org.sonar.server.computation.formula.CreateMeasureContext;
 import org.sonar.server.computation.formula.Formula;
 import org.sonar.server.computation.formula.FormulaExecutorComponentVisitor;
 import org.sonar.server.computation.measure.Measure;
@@ -42,6 +45,8 @@ import org.sonar.server.computation.metric.MetricRepository;
 import static com.google.common.collect.Maps.asMap;
 import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION_KEY;
 import static org.sonar.api.utils.KeyValueFormat.format;
+import static org.sonar.api.utils.KeyValueFormat.newIntegerConverter;
+import static org.sonar.api.utils.KeyValueFormat.newStringConverter;
 import static org.sonar.server.computation.measure.Measure.newMeasureBuilder;
 
 public class LanguageDistributionMeasuresStep implements ComputationStep {
@@ -64,9 +69,8 @@ public class LanguageDistributionMeasuresStep implements ComputationStep {
 
   @Override
   public void execute() {
-    new PathAwareCrawler<>(
-      FormulaExecutorComponentVisitor.newBuilder(metricRepository, measureRepository).buildFor(FORMULAS))
-        .visit(treeRootHolder.getRoot());
+    new PathAwareCrawler<>(FormulaExecutorComponentVisitor.newBuilder(metricRepository, measureRepository).buildFor(FORMULAS))
+      .visit(treeRootHolder.getRoot());
   }
 
   private static class LanguageDistributionFormula implements Formula<LanguageDistributionCounter> {
@@ -116,12 +120,29 @@ public class LanguageDistributionMeasuresStep implements ComputationStep {
 
     @Override
     public void initialize(CounterInitializationContext context) {
+      if (context.getLeaf().getType() == Component.Type.FILE) {
+        initializeForFile(context);
+      }
+      initializeForOtherLeaf(context);
+    }
+
+    private void initializeForFile(CounterInitializationContext context) {
       String language = context.getLeaf().getFileAttributes().getLanguageKey();
       Optional<Measure> ncloc = context.getMeasure(CoreMetrics.NCLOC_KEY);
       if (ncloc.isPresent()) {
         multiset.add(language == null ? UNKNOWN_LANGUAGE_KEY : language, ncloc.get().getIntValue());
       }
     }
+
+    private void initializeForOtherLeaf(CounterInitializationContext context) {
+      Optional<Measure> measure = context.getMeasure(NCLOC_LANGUAGE_DISTRIBUTION_KEY);
+      if (measure.isPresent()) {
+        Map<String, Integer> parse = KeyValueFormat.parse(measure.get().getData(), newStringConverter(), newIntegerConverter());
+        for (Map.Entry<String, Integer> entry : parse.entrySet()) {
+          multiset.add(entry.getKey(), entry.getValue());
+        }
+      }
+    }
   }
 
   @Override
diff --git a/server/sonar-server/src/test/java/org/sonar/server/computation/step/LanguageDistributionMeasuresStepTest.java b/server/sonar-server/src/test/java/org/sonar/server/computation/step/LanguageDistributionMeasuresStepTest.java
deleted file mode 100644 (file)
index 6f4acdf..0000000
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * SonarQube, open source software quality management tool.
- * Copyright (C) 2008-2014 SonarSource
- * mailto:contact AT sonarsource DOT com
- *
- * SonarQube is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * SonarQube is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-package org.sonar.server.computation.step;
-
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.sonar.server.computation.batch.TreeRootHolderRule;
-import org.sonar.server.computation.component.FileAttributes;
-import org.sonar.server.computation.measure.MeasureRepositoryRule;
-import org.sonar.server.computation.metric.MetricRepositoryRule;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.guava.api.Assertions.assertThat;
-import static org.sonar.api.measures.CoreMetrics.NCLOC;
-import static org.sonar.api.measures.CoreMetrics.NCLOC_KEY;
-import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION;
-import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION_KEY;
-import static org.sonar.server.computation.component.Component.Type.DIRECTORY;
-import static org.sonar.server.computation.component.Component.Type.FILE;
-import static org.sonar.server.computation.component.Component.Type.MODULE;
-import static org.sonar.server.computation.component.Component.Type.PROJECT;
-import static org.sonar.server.computation.component.ReportComponent.builder;
-import static org.sonar.server.computation.measure.Measure.newMeasureBuilder;
-
-public class LanguageDistributionMeasuresStepTest {
-
-  private static final String XOO_LANGUAGE = "xoo";
-  private static final String JAVA_LANGUAGE = "java";
-
-  private static final int ROOT_REF = 1;
-  private static final int MODULE_REF = 12;
-  private static final int SUB_MODULE_REF = 123;
-  private static final int DIRECTORY_REF = 1234;
-  private static final int FILE_1_REF = 12341;
-  private static final int FILE_2_REF = 12342;
-  private static final int FILE_3_REF = 12343;
-  private static final int FILE_4_REF = 12344;
-
-  @Rule
-  public TreeRootHolderRule treeRootHolder = new TreeRootHolderRule();
-
-  @Rule
-  public MetricRepositoryRule metricRepository = new MetricRepositoryRule()
-    .add(NCLOC)
-    .add(NCLOC_LANGUAGE_DISTRIBUTION);
-
-  @Rule
-  public MeasureRepositoryRule measureRepository = MeasureRepositoryRule.create(treeRootHolder, metricRepository);
-
-  ComputationStep underTest = new LanguageDistributionMeasuresStep(treeRootHolder, metricRepository, measureRepository);
-
-  @Before
-  public void setUp() throws Exception {
-    treeRootHolder.setRoot(
-      builder(PROJECT, ROOT_REF)
-        .addChildren(
-          builder(MODULE, MODULE_REF)
-            .addChildren(
-              builder(MODULE, SUB_MODULE_REF)
-                .addChildren(
-                  builder(DIRECTORY, DIRECTORY_REF)
-                    .addChildren(
-                      builder(FILE, FILE_1_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE)).build(),
-                      builder(FILE, FILE_2_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE)).build(),
-                      builder(FILE, FILE_3_REF).setFileAttributes(new FileAttributes(false, JAVA_LANGUAGE)).build(),
-                      builder(FILE, FILE_4_REF).setFileAttributes(new FileAttributes(false, null)).build()
-                    ).build()
-                ).build()
-            ).build()
-        ).build());
-  }
-
-  @Test
-  public void compute_ncloc_language_distribution() {
-    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));
-    measureRepository.addRawMeasure(FILE_2_REF, NCLOC_KEY, newMeasureBuilder().create(8));
-    measureRepository.addRawMeasure(FILE_3_REF, NCLOC_KEY, newMeasureBuilder().create(6));
-    measureRepository.addRawMeasure(FILE_4_REF, NCLOC_KEY, newMeasureBuilder().create(2));
-
-    underTest.execute();
-
-    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=10");
-    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=8");
-    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("java=6");
-    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2");
-
-    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
-    assertThat(measureRepository.getAddedRawMeasure(SUB_MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
-    assertThat(measureRepository.getAddedRawMeasure(MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
-    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
-  }
-
-  @Test
-  public void do_not_compute_ncloc_language_distribution_when_no_ncloc() {
-    underTest.execute();
-
-    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-
-    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(SUB_MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
-  }
-
-}
diff --git a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ReportLanguageDistributionMeasuresStepTest.java b/server/sonar-server/src/test/java/org/sonar/server/computation/step/ReportLanguageDistributionMeasuresStepTest.java
new file mode 100644 (file)
index 0000000..e34c123
--- /dev/null
@@ -0,0 +1,127 @@
+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2014 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * SonarQube is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * SonarQube is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package org.sonar.server.computation.step;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.sonar.server.computation.batch.TreeRootHolderRule;
+import org.sonar.server.computation.component.FileAttributes;
+import org.sonar.server.computation.measure.MeasureRepositoryRule;
+import org.sonar.server.computation.metric.MetricRepositoryRule;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.guava.api.Assertions.assertThat;
+import static org.sonar.api.measures.CoreMetrics.NCLOC;
+import static org.sonar.api.measures.CoreMetrics.NCLOC_KEY;
+import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION;
+import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION_KEY;
+import static org.sonar.server.computation.component.Component.Type.DIRECTORY;
+import static org.sonar.server.computation.component.Component.Type.FILE;
+import static org.sonar.server.computation.component.Component.Type.MODULE;
+import static org.sonar.server.computation.component.Component.Type.PROJECT;
+import static org.sonar.server.computation.component.ReportComponent.builder;
+import static org.sonar.server.computation.measure.Measure.newMeasureBuilder;
+
+public class ReportLanguageDistributionMeasuresStepTest {
+
+  private static final String XOO_LANGUAGE = "xoo";
+  private static final String JAVA_LANGUAGE = "java";
+
+  private static final int ROOT_REF = 1;
+  private static final int MODULE_REF = 12;
+  private static final int SUB_MODULE_REF = 123;
+  private static final int DIRECTORY_REF = 1234;
+  private static final int FILE_1_REF = 12341;
+  private static final int FILE_2_REF = 12342;
+  private static final int FILE_3_REF = 12343;
+  private static final int FILE_4_REF = 12344;
+
+  @Rule
+  public TreeRootHolderRule treeRootHolder = new TreeRootHolderRule();
+
+  @Rule
+  public MetricRepositoryRule metricRepository = new MetricRepositoryRule()
+    .add(NCLOC)
+    .add(NCLOC_LANGUAGE_DISTRIBUTION);
+
+  @Rule
+  public MeasureRepositoryRule measureRepository = MeasureRepositoryRule.create(treeRootHolder, metricRepository);
+
+  ComputationStep underTest = new LanguageDistributionMeasuresStep(treeRootHolder, metricRepository, measureRepository);
+
+  @Before
+  public void setUp() throws Exception {
+    treeRootHolder.setRoot(
+      builder(PROJECT, ROOT_REF)
+        .addChildren(
+          builder(MODULE, MODULE_REF)
+            .addChildren(
+              builder(MODULE, SUB_MODULE_REF)
+                .addChildren(
+                  builder(DIRECTORY, DIRECTORY_REF)
+                    .addChildren(
+                      builder(FILE, FILE_1_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE)).build(),
+                      builder(FILE, FILE_2_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE)).build(),
+                      builder(FILE, FILE_3_REF).setFileAttributes(new FileAttributes(false, JAVA_LANGUAGE)).build(),
+                      builder(FILE, FILE_4_REF).setFileAttributes(new FileAttributes(false, null)).build())
+                    .build())
+                .build())
+            .build())
+        .build());
+  }
+
+  @Test
+  public void compute_ncloc_language_distribution() {
+    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));
+    measureRepository.addRawMeasure(FILE_2_REF, NCLOC_KEY, newMeasureBuilder().create(8));
+    measureRepository.addRawMeasure(FILE_3_REF, NCLOC_KEY, newMeasureBuilder().create(6));
+    measureRepository.addRawMeasure(FILE_4_REF, NCLOC_KEY, newMeasureBuilder().create(2));
+
+    underTest.execute();
+
+    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=10");
+    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=8");
+    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("java=6");
+    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2");
+
+    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
+    assertThat(measureRepository.getAddedRawMeasure(SUB_MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
+    assertThat(measureRepository.getAddedRawMeasure(MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
+    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
+  }
+
+  @Test
+  public void do_not_compute_ncloc_language_distribution_when_no_ncloc() {
+    underTest.execute();
+
+    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+
+    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(SUB_MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(MODULE_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isAbsent();
+  }
+
+}
diff --git a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ViewsLanguageDistributionMeasuresStepTest.java b/server/sonar-server/src/test/java/org/sonar/server/computation/step/ViewsLanguageDistributionMeasuresStepTest.java
new file mode 100644 (file)
index 0000000..1908837
--- /dev/null
@@ -0,0 +1,118 @@
+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2014 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * SonarQube is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * SonarQube is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package org.sonar.server.computation.step;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.sonar.server.computation.batch.TreeRootHolderRule;
+import org.sonar.server.computation.measure.MeasureRepositoryRule;
+import org.sonar.server.computation.metric.MetricRepositoryRule;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.guava.api.Assertions.assertThat;
+import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION;
+import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION_KEY;
+import static org.sonar.server.computation.component.Component.Type.PROJECT_VIEW;
+import static org.sonar.server.computation.component.Component.Type.SUBVIEW;
+import static org.sonar.server.computation.component.Component.Type.VIEW;
+import static org.sonar.server.computation.component.ViewsComponent.builder;
+import static org.sonar.server.computation.measure.Measure.newMeasureBuilder;
+
+public class ViewsLanguageDistributionMeasuresStepTest {
+
+  private static final int ROOT_REF = 1;
+  private static final int SUBVIEW_1_REF = 12;
+  private static final int SUB_SUBVIEW_1_REF = 121;
+  private static final int PROJECT_VIEW_1_REF = 1211;
+  private static final int PROJECT_VIEW_2_REF = 1212;
+  private static final int PROJECT_VIEW_3_REF = 1213;
+  private static final int SUB_SUBVIEW_2_REF = 122;
+  private static final int SUBVIEW_2_REF = 13;
+  private static final int PROJECT_VIEW_4_REF = 131;
+  private static final int PROJECT_VIEW_5_REF = 14;
+
+  @Rule
+  public TreeRootHolderRule treeRootHolder = new TreeRootHolderRule()
+    .setRoot(builder(VIEW, ROOT_REF)
+      .addChildren(
+        builder(SUBVIEW, SUBVIEW_1_REF)
+          .addChildren(
+            builder(SUBVIEW, SUB_SUBVIEW_1_REF)
+              .addChildren(
+                  builder(PROJECT_VIEW, PROJECT_VIEW_1_REF).build(),
+                  builder(PROJECT_VIEW, PROJECT_VIEW_2_REF).build(),
+                  builder(PROJECT_VIEW, PROJECT_VIEW_3_REF).build())
+              .build(),
+            builder(SUBVIEW, SUB_SUBVIEW_2_REF).build())
+          .build(),
+        builder(SUBVIEW, SUBVIEW_2_REF)
+          .addChildren(
+            builder(PROJECT_VIEW, PROJECT_VIEW_4_REF).build())
+          .build(),
+        builder(PROJECT_VIEW, PROJECT_VIEW_5_REF).build())
+      .build());
+  @Rule
+  public MetricRepositoryRule metricRepository = new MetricRepositoryRule()
+    .add(NCLOC_LANGUAGE_DISTRIBUTION);
+  @Rule
+  public MeasureRepositoryRule measureRepository = MeasureRepositoryRule.create(treeRootHolder, metricRepository);
+
+  ComputationStep underTest = new LanguageDistributionMeasuresStep(treeRootHolder, metricRepository, measureRepository);
+
+  @Test
+  public void compute_ncloc_language_distribution() {
+    addRawMeasure(PROJECT_VIEW_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "xoo=10");
+    addRawMeasure(PROJECT_VIEW_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "java=6");
+    addRawMeasure(PROJECT_VIEW_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "java=10;xoo=5");
+    // no raw measure on PROJECT_VIEW_4_REF
+    addRawMeasure(PROJECT_VIEW_5_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "<null>=3;foo=10");
+
+    underTest.execute();
+
+    assertNoAddedRawMeasureOnProjectViews();
+    assertAddedRawMeasure(SUB_SUBVIEW_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "java=16;xoo=15");
+    assertNoAddedRawMeasures(SUB_SUBVIEW_2_REF);
+    assertNoAddedRawMeasures(SUBVIEW_2_REF);
+    assertAddedRawMeasure(SUBVIEW_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "java=16;xoo=15");
+    assertAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY, "<null>=3;foo=10;java=16;xoo=15");
+  }
+
+  private void assertAddedRawMeasure(int componentRef, String metricKey, String value) {
+    assertThat(measureRepository.getAddedRawMeasure(componentRef, metricKey).get().getStringValue()).isEqualTo(value);
+  }
+
+  private void addRawMeasure(int componentRef, String metricKey, String value) {
+    measureRepository.addRawMeasure(componentRef, metricKey, newMeasureBuilder().create(value));
+  }
+
+  private void assertNoAddedRawMeasureOnProjectViews() {
+    assertNoAddedRawMeasures(PROJECT_VIEW_1_REF);
+    assertNoAddedRawMeasures(PROJECT_VIEW_2_REF);
+    assertNoAddedRawMeasures(PROJECT_VIEW_3_REF);
+    assertNoAddedRawMeasures(PROJECT_VIEW_4_REF);
+    assertNoAddedRawMeasures(PROJECT_VIEW_5_REF);
+  }
+
+  private void assertNoAddedRawMeasures(int componentRef) {
+    assertThat(measureRepository.getAddedRawMeasures(componentRef)).isEmpty();
+  }
+
+}