add check task

Author: maiflai

src/main/groovy/com/github/maiflai/OverallCheckTask.groovy

@@ -0,0 +1,26 @@
+package com.github.maiflai
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.tasks.TaskAction
+
+class OverallCheckTask extends DefaultTask {
+
+    File cobertura
+    double minimumLineRate = 1
+
+    @TaskAction
+    void requireLineCoverage() {
+
+        def reportDirName = project.extensions[ScctPlugin.CONFIGURATION_NAME].reportDirName
+        if (cobertura == null){
+            cobertura = project.file("$project.buildDir/reports/$reportDirName/cobertura.xml")
+        }
+
+        def xml = new XmlParser().parse(cobertura)
+        def overallLineRate = xml.attribute('line-rate').toDouble()
+        def difference = (minimumLineRate - overallLineRate)
+        if (difference > 0.001) throw new GradleException("Line coverage of $overallLineRate is below $minimumLineRate by $difference")
+    }
+
+}

src/main/groovy/com/github/maiflai/ScctExtension.groovy

@@ -37,6 +37,10 @@ class ScctExtension {
             dependsOn(project.tasks[ScctPlugin.COMPILE_NAME])
         }
 
+        project.tasks.create(ScctPlugin.CHECK_NAME, OverallCheckTask.class) {
+            dependsOn(project.tasks[ScctPlugin.TEST_NAME])
+        }
+
     }
 
     private Action<Project> configureRuntimeOptions = new Action<Project>() {
@@ -65,6 +69,7 @@ class ScctExtension {
 
     String reportDirName = 'scct'
 
+
 }
 
 

src/main/groovy/com/github/maiflai/ScctPlugin.groovy

@@ -8,6 +8,7 @@ class ScctPlugin implements Plugin<Project> {
     static String CONFIGURATION_NAME = 'scct'
 
     static String TEST_NAME = 'testScct'
+    static String CHECK_NAME = 'checkScct'
     static String COMPILE_NAME = 'compileScctScala'
 
     @Override

src/test/groovy/com/github/maiflai/OverallCheckTaskTest.groovy

@@ -0,0 +1,45 @@
+package com.github.maiflai
+
+import org.gradle.api.Project
+import org.gradle.api.tasks.TaskExecutionException
+import org.gradle.testfixtures.ProjectBuilder
+import org.hamcrest.Description
+import org.hamcrest.TypeSafeMatcher
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.ExpectedException
+
+class OverallCheckTaskTest {
+
+    @Rule
+    public ExpectedException expectedException = ExpectedException.none()
+
+    private Project projectForLineRate(Number lineRate) {
+        Project project = ProjectBuilder.builder().build()
+        project.tasks.create('bob', OverallCheckTask) {
+            minimumLineRate = lineRate
+            cobertura = new File('src/test/resources/cobertura.xml')
+        }
+        project
+    }
+
+    @Test
+    void failsWhenLineRateIsBelowTarget(){
+        Project project = projectForLineRate(1)
+        expectedException.expect(TaskExecutionException)
+        project.tasks.bob.execute()
+    }
+
+    @Test
+    void doesNotFailWhenLineRateIsAtTarget() throws Exception {
+        Project project = projectForLineRate(0.66)
+        project.tasks.bob.execute()
+    }
+
+    @Test
+    void doesNotFailWhenLineRateIsAboveTarget() throws Exception {
+        Project project = projectForLineRate(0.6)
+        project.tasks.bob.execute()
+    }
+
+}

src/test/resources/cobertura.xml

@@ -0,0 +1,26 @@
+<coverage line-rate="0.66">
+  <packages>
+    <package line-rate="0.66" name="&lt;root&gt;">
+      <classes>
+        <class line-rate="1" name="Bob" filename="src/main/scala/My.scala">
+          <methods/>
+          <lines>
+            <line number="10" hits="1"/>
+          </lines>
+        </class>
+        <class line-rate="0" name="HelloWorld" filename="src/main/scala/My.scala">
+          <methods/>
+          <lines>
+            <line number="6" hits="0"/>
+          </lines>
+        </class>
+        <class line-rate="1" name="Rita" filename="src/main/myscala/Rita.scala">
+          <methods/>
+          <lines>
+            <line number="1" hits="1"/>
+          </lines>
+        </class>
+      </classes>
+    </package>
+  </packages>
+</coverage>