SONAR-4094 On each source file, provide the ability to list all unit tests covering at least one line of code in this source file

plugins/sonar-core-plugin/src/main/resources/org/sonar/l10n/core.properties

@@ -1131,7 +1131,9 @@ overall_coverage_viewer.by=by all tests
 coverage_viewer.unit_tests=Unit Tests
 coverage_viewer.integration_tests=Integration Tests
 coverage_viewer.overall_tests=All Tests
-lines_covered_per_test=Lines covered per test
+coverage_viewer.per_test=Per test
+coverage_viewer.lines_covered_per_test=Lines covered
+coverage_viewer.select_test=Select a test
 
 
 #------------------------------------------------------------------------------

sonar-core/src/main/java/org/sonar/core/test/DefaultTestCase.java

@@ -132,5 +132,4 @@ public class DefaultTestCase extends BeanVertex implements MutableTestCase {
     }, null);
   }
 
-
 }

sonar-core/src/main/java/org/sonar/core/test/DefaultTestable.java

@@ -27,6 +27,7 @@ import com.tinkerpop.blueprints.Direction;
 import com.tinkerpop.blueprints.Edge;
 import com.tinkerpop.blueprints.Vertex;
 import org.sonar.api.component.Component;
+import org.sonar.api.test.Cover;
 import org.sonar.api.test.MutableTestable;
 import org.sonar.api.test.TestCase;
 import org.sonar.core.component.ComponentVertex;
@@ -62,6 +63,7 @@ public class DefaultTestable extends BeanVertex implements MutableTestable {
 
   public int countTestCasesOfLine(int line) {
     int number = 0;
+//    element().query()
     // TODO filter on edge
     for (Edge edge : covers()) {
       if (Iterables.contains(lines(edge), line)) {
@@ -91,6 +93,14 @@ public class DefaultTestable extends BeanVertex implements MutableTestable {
     return coveredLines.build();
   }
 
+  public Cover coverOfTestCase(final TestCase testCase) {
+    return Iterables.find(getEdges(DefaultCover.class, Direction.IN, "covers"), new Predicate<Cover>() {
+      public boolean apply(Cover input) {
+        return input.testCase().key().equals(testCase.key());
+      }
+    }, null);
+  }
+
   private Iterable<Edge> covers() {
     return element().getEdges(Direction.IN, "covers");
   }

sonar-core/src/test/java/org/sonar/core/test/DefaultTestableTest.java

@@ -21,7 +21,10 @@ package org.sonar.core.test;
 
 import com.google.common.collect.Iterables;
 import org.junit.Test;
+import org.sonar.api.component.mock.MockSourceFile;
 import org.sonar.api.test.MutableTestCase;
+import org.sonar.core.component.ComponentVertex;
+import org.sonar.core.component.ScanGraph;
 import org.sonar.core.graph.BeanGraph;
 
 import java.util.Arrays;
@@ -87,4 +90,26 @@ public class DefaultTestableTest {
     assertThat(testable.testCaseByKey("T2")).isEqualTo(testCase2);
     assertThat(testable.testCaseByKey("Unknown")).isNull();
   }
+
+  @Test
+  public void should_return_cover_of_testCase(){
+    BeanGraph beanGraph = BeanGraph.createInMemory();
+
+    ScanGraph graph = ScanGraph.create();
+    ComponentVertex file1 = graph.addComponent(MockSourceFile.createMain("org.foo.Bar"));
+    DefaultTestable testable1 = beanGraph.createAdjacentVertex(file1, DefaultTestable.class, "testable");
+
+    ComponentVertex file2 = graph.addComponent(MockSourceFile.createMain("org.foo.File"));
+    DefaultTestable testable2 = beanGraph.createAdjacentVertex(file2, DefaultTestable.class, "testable");
+
+    DefaultTestPlan plan = beanGraph.createVertex(DefaultTestPlan.class);
+    plan.addTestCase("T1");
+
+    MutableTestCase testCase = Iterables.get(plan.testCases(), 0);
+    testCase.setCover(testable1, Arrays.asList(10, 11, 12));
+
+    assertThat(testable1.coverOfTestCase(testCase).testCase()).isEqualTo(testCase);
+    assertThat(testable1.coverOfTestCase(testCase).testable()).isEqualTo(testable1);
+    assertThat(testable2.coverOfTestCase(testCase)).isNull();
+  }
 }

sonar-plugin-api/src/main/java/org/sonar/api/test/Testable.java

@@ -36,4 +36,6 @@ public interface Testable extends Perspective {
 
   SortedSet<Integer> testedLines();
 
+  Cover coverOfTestCase(TestCase testCase);
+
 }

sonar-server/src/main/webapp/WEB-INF/app/controllers/resource_controller.rb

@@ -181,7 +181,9 @@ class ResourceController < ApplicationController
     @expandable = (@lines!=nil)
     if @lines
       metric = Metric.by_key(params[:coverage_filter]||params[:metric])
-      @coverage_filter = (metric ? metric.key : 'coverage')
+      @coverage_filter = params[:coverage_filter] if params[:coverage_filter] == 'lines_covered_per_test'
+      @coverage_filter = (metric ? metric.key : 'coverage') unless @coverage_filter
+      @test_case_filter = params[:test_case_filter] if  !params[:test_case_filter].blank?
 
       it_prefix = ''
       it_prefix = 'it_' if (@coverage_filter.start_with?('it_') || @coverage_filter.start_with?('new_it_'))
@@ -195,8 +197,8 @@ class ResourceController < ApplicationController
       @hits_by_line.each_pair do |line_id, hits|
         line = @lines[line_id-1]
         if line
-          line.covered_lines = 0
-          line.covered_lines = @testable.countTestCasesOfLine(line_id) if @testable
+          line.index = line_id
+          line.covered_lines = @testable ? @testable.countTestCasesOfLine(line_id) : 0
           line.hits = hits.to_i
           line.conditions = @conditions_by_line[line_id].to_i
           line.covered_conditions = @covered_conditions_by_line[line_id].to_i
@@ -216,6 +218,7 @@ class ResourceController < ApplicationController
 
       to = (@period && @snapshot.period_datetime(@period) ? Java::JavaUtil::Date.new(@snapshot.period_datetime(@period).to_f * 1000) : nil)
       @filtered = true
+
       if ('lines_to_cover'==@coverage_filter || 'coverage'==@coverage_filter || 'line_coverage'==@coverage_filter ||
           'new_lines_to_cover'==@coverage_filter || 'new_coverage'==@coverage_filter || 'new_line_coverage'==@coverage_filter ||
           'it_lines_to_cover'==@coverage_filter || 'it_coverage'==@coverage_filter || 'it_line_coverage'==@coverage_filter ||
@@ -245,13 +248,16 @@ class ResourceController < ApplicationController
         'overall_uncovered_conditions'==@coverage_filter || 'new_overall_uncovered_conditions' == @coverage_filter)
         @coverage_filter="#{it_prefix}uncovered_conditions"
         filter_lines { |line| line.conditions && line.covered_conditions && line.covered_conditions<line.conditions && line.after(to) }
-      end
-    end
 
-    @test_case_filter = params[:test_case_filter]
-    if @test_case_filter && @testable
-      #lines = @testable.coverOfTestable(@testable.testCaseByKey(@test_case_filter)).lines
-      #filter_lines { |line| lines.include? line }
+      elsif @coverage_filter == 'lines_covered_per_test'
+        if @test_case_filter
+          test_case = @testable.testCaseByKey(@test_case_filter)
+          lines = @testable.coverOfTestCase(test_case).lines
+          filter_lines { |line| lines.include? line.index }
+        else
+          filter_lines { |line| line.covered_lines && line.after(to) }
+        end
+      end
     end
 
     render :action => 'index', :layout => !request.xhr?
@@ -440,7 +446,7 @@ class ResourceController < ApplicationController
   end
 
   class Line
-    attr_accessor :source, :revision, :author, :datetime, :violations, :hits, :conditions, :covered_conditions, :hidden, :highlighted, :deprecated_conditions_label, :covered_lines
+    attr_accessor :index, :source, :revision, :author, :datetime, :violations, :hits, :conditions, :covered_conditions, :hidden, :highlighted, :deprecated_conditions_label, :covered_lines
 
     def initialize(source)
       @source=source

sonar-server/src/main/webapp/WEB-INF/app/views/resource/_options.html.erb

@@ -89,13 +89,18 @@
                     <option value="overall_uncovered_conditions" <%= 'selected' if @coverage_filter=='overall_uncovered_conditions' -%>><%= Metric.name_for('overall_uncovered_conditions') -%></option>
                   </optgroup>
                 <% end %>
+                <% if @testable && !@testable.testCases.empty? %>
+                  <optgroup label="<%= h message('coverage_viewer.per_test') -%>">
+                    <option value="lines_covered_per_test" <%= 'selected' if @coverage_filter=='lines_covered_per_test' -%>><%= message('coverage_viewer.lines_covered_per_test') -%></option>
+                  </optgroup>
+                <% end %>
               </select>
             </td>
 
-            <% if @testable && !@testable.testCases.empty? %>
+            <% if @coverage_filter=='lines_covered_per_test' %>
               <td class="<%= 'first' if first -%>">
                 <select id="test_case_filter" name="test_case_filter" onchange="applyOptions()">
-                  <option value=""><%= message('lines_covered_per_test') -%></option>
+                  <option value=""><%= message('coverage_viewer.select_test') -%></option>
                   <% @testable.testCases.each do |test_case| %>
                     <option value="<%= test_case.key -%>" <%= 'selected' if @test_case_filter==test_case.key -%>><%= test_case.name -%></option>
                   <% end %>

sonar-server/src/main/webapp/WEB-INF/app/views/test/_testcase_working_view.erb

@@ -13,7 +13,7 @@
   <% @test_case.covers.sort_by{|cover| cover.testable.component.name}.each do |cover| %>
   <tr class="<%= cycle("even", "odd") -%>">
     <td>
-      <a href="<%= ApplicationController.root_context -%>/resource/index/<%= cover.testable.component.key -%>?display_title=true&tab=coverage"
+      <a href="<%= ApplicationController.root_context -%>/resource/index/<%= cover.testable.component.key -%>?display_title=true&tab=coverage&coverage_filter=lines_covered_per_test&test_case_filter=<%= @test -%>"
          onclick="window.open(this.href,'resource','height=800,width=900,scrollbars=1,resizable=1');return false;"><%= cover.testable.component.longName -%>
       </a>
     </td>