CTest: Generalize Cobertura coverage format handling

Add support for Cobertura coverage files written by Java.

Add a test which uses the report from a Java run of Cobertura to calculate coverage.

In the documentation of CTEST_COVERAGE_COMMAND, give a sample .sh file to merge
the Cobertura .ser files and generate the XML report from the merged file.

Help/variable/CTEST_COVERAGE_COMMAND.rst

@@ -3,3 +3,58 @@ CTEST_COVERAGE_COMMAND
 
 Specify the CTest ``CoverageCommand`` setting
 in a :manual:`ctest(1)` dashboard client script.
+
+Cobertura
+'''''''''
+
+Using `Cobertura`_ as the coverage generation within your multi-module
+Java project can generate a series of XML files.
+
+The Cobertura Coverage parser expects to read the coverage data from a
+single XML file which contains the coverage data for all modules.
+Cobertura has a program with the ability to merge given cobertura.ser files
+and then another program to generate a combined XML file from the previous
+merged file.  For command line testing, this can be done by hand prior to
+CTest looking for the coverage files. For script builds,
+set the ``CTEST_COVERAGE_COMMAND`` variable to point to a file which will
+perform these same steps, such as a .sh or .bat file.
+
+.. code-block:: cmake
+
+  set(CTEST_COVERAGE_COMMAND .../run-coverage-and-consolidate.sh)
+
+where the ``run-coverage-and-consolidate.sh`` script is perhaps created by
+the :command:`configure_file` command and might contain the following code:
+
+.. code-block:: bash
+
+  #!/usr/bin/env bash
+  CoberturaFiles="$(find "/path/to/source" -name "cobertura.ser")"
+  SourceDirs="$(find "/path/to/source" -name "java" -type d)"
+  cobertura-merge --datafile coberturamerge.ser $CoberturaFiles
+  cobertura-report --datafile coberturamerge.ser --destination . \
+                   --format xml $SourceDirs
+
+The script uses ``find`` to capture the paths to all of the cobertura.ser files
+found below the project's source directory.  It keeps the list of files and
+supplies it as an argument to the ``cobertura-merge`` program. The ``--datafile``
+argument signifies where the result of the merge will be kept.
+
+The combined ``coberturamerge.ser`` file is then used to generate the XML report
+using the ``cobertura-report`` program.  The call to the cobertura-report program
+requires some named arguments.
+
+``--datafila``
+  path to the merged .ser file
+
+``--destination``
+  path to put the output files(s)
+
+``--format``
+  file format to write output in: xml or html
+
+The rest of the supplied arguments consist of the full paths to the
+/src/main/java directories of each module within the souce tree. These
+directories are needed and should not be forgotten.
+
+.. _`Cobertura`: http://cobertura.github.io/cobertura/

Source/CTest/cmParseCoberturaCoverage.cxx

@@ -12,6 +12,10 @@ public:
   XMLParser(cmCTest* ctest, cmCTestCoverageHandlerContainer& cont)
     : CTest(ctest), Coverage(cont)
   {
+   this->InSources = false;
+   this->InSource  = false;
+   this->FilePaths.push_back(this->Coverage.SourceDir);
+   this->CurFileName = "";
   }
 
   virtual ~XMLParser()
@@ -20,9 +24,44 @@ public:
 
 protected:
 
+
+  virtual void EndElement(const std::string& name)
+  {
+   if(name == "source")
+     {
+     this->InSource=false;
+     }
+   else if (name == "sources")
+     {
+     this->InSources=false;
+     }
+  }
+
+  virtual void CharacterDataHandler(const char* data, int length)
+  {
+     std::string tmp;
+     tmp.insert(0,data,length);
+     if (this->InSources && this->InSource)
+       {
+       this->FilePaths.push_back(tmp);
+       cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, "Adding Source: "
+                   << tmp << std::endl);
+       }
+  }
+
   virtual void StartElement(const std::string& name, const char** atts)
   {
-    if(name == "class")
+    std::string FoundSource;
+    std::string finalpath = "";
+    if(name == "source")
+    {
+      this->InSource = true;
+    }
+    else if(name == "sources")
+      {
+      this->InSources = true;
+      }
+    else if(name == "class")
     {
       int tagCount = 0;
       while(true)
@@ -30,11 +69,19 @@ protected:
         if(strcmp(atts[tagCount], "filename") == 0)
         {
           cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, "Reading file: "
-                     << atts[tagCount+1] << std::endl);
+                     << atts[tagCount+1]<< std::endl);
-          this->CurFileName = this->Coverage.SourceDir + "/" +
+          std::string filename = atts[tagCount+1];
-                                 atts[tagCount+1];
+          for(size_t i=0;i < FilePaths.size();i++)
+            {
+            finalpath = FilePaths[i] + "/" + filename;
+            if(cmSystemTools::FileExists(finalpath.c_str()))
+              {
+              this->CurFileName = finalpath;
+              break;
+              }
+            }
           cmsys::ifstream fin(this->CurFileName.c_str());
-          if(!fin)
+          if(this->CurFileName == "" || !fin )
           {
             this->CurFileName = this->Coverage.BinaryDir + "/" +
                                    atts[tagCount+1];
@@ -48,7 +95,6 @@ protected:
               break;
             }
           }
-
           std::string line;
           FileLinesType& curFileLines =
             this->Coverage.TotalCoverage[this->CurFileName];
@@ -83,7 +129,9 @@ protected:
         {
           FileLinesType& curFileLines =
             this->Coverage.TotalCoverage[this->CurFileName];
+            {
             curFileLines[curNumber-1] = curHits;
+            }
           break;
         }
         ++tagCount;
@@ -91,10 +139,11 @@ protected:
     }
   }
 
-  virtual void EndElement(const std::string&) {}
-
 private:
 
+  bool InSources;
+  bool InSource;
+  std::vector<std::string> FilePaths;
   typedef cmCTestCoverageHandlerContainer::SingleFileCoverageVector
      FileLinesType;
   cmCTest* CTest;

Source/CTest/cmParseCoberturaCoverage.h

@@ -34,6 +34,9 @@ public:
   cmParseCoberturaCoverage(cmCTestCoverageHandlerContainer& cont,
     cmCTest* ctest);
 
+  bool inSources;
+  bool inSource;
+  std::vector<std::string> filepaths;
   //! Read the XML produced by running `coverage xml`
   bool ReadCoverageXML(const char* xmlFile);
 

Tests/CMakeLists.txt

@@ -2184,6 +2184,24 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
       "Process file.*foo.py.*Total LOC:.*13.*Percentage Coverage: 84.62.*"
       ENVIRONMENT COVFILE=)
 
+  # Adding a test case for non-python Cobertura Coverage
+  configure_file(
+     "${CMake_SOURCE_DIR}/Tests/CoberturaCoverage/DartConfiguration.tcl.in"
+     "${CMake_BINARY_DIR}/Testing/CoberturaCoverage/DartConfiguration.tcl")
+  configure_file(
+     "${CMake_SOURCE_DIR}/Tests/CoberturaCoverage/coverage.xml.in"
+     "${CMake_BINARY_DIR}/Testing/CoberturaCoverage/coverage.xml")
+  file(COPY "${CMake_SOURCE_DIR}/Tests/CoberturaCoverage/src"
+    DESTINATION "${CMake_BINARY_DIR}/Testing/CoberturaCoverage")
+  add_test(NAME CTestCoberturaCoverage
+    COMMAND cmake -E chdir
+    ${CMake_BINARY_DIR}/Testing/CoberturaCoverage
+    $<TARGET_FILE:ctest> -T Coverage --debug)
+  set_tests_properties(CTestCoberturaCoverage PROPERTIES
+      PASS_REGULAR_EXPRESSION
+      "Process file.*CoverageTest.java.*Total LOC:.*18.*Percentage Coverage: 72.22.*"
+      ENVIRONMENT COVFILE=)
+
   function(add_config_tests cfg)
     set(base "${CMake_BINARY_DIR}/Tests/CTestConfig")
 

Tests/CoberturaCoverage/DartConfiguration.tcl.in

@@ -0,0 +1,8 @@
+# This file is configured by CMake automatically as DartConfiguration.tcl
+# If you choose not to use CMake, this file may be hand configured, by
+# filling in the required variables.
+
+
+# Configuration directories and files
+SourceDirectory: ${CMake_SOURCE_DIR}/Testing/CoberturaCoverage
+BuildDirectory: ${CMake_BINARY_DIR}/Testing/CoberturaCoverage

Tests/CoberturaCoverage/coverage.xml.in

@@ -0,0 +1,112 @@
+<?xml version="1.0"?>
+<!DOCTYPE coverage SYSTEM "http://cobertura.sourceforge.net/xml/coverage-04.dtd">
+
+<coverage line-rate="0.7222222222222222" branch-rate="0.875" lines-covered="13" lines-valid="18" branches-covered="7" branches-valid="8" complexity="0.0" version="1.9.4.1" timestamp="1401890139281">
+	<sources>
+		<source>${CMake_BINARY_DIR}/Testing/CoberturaCoverage/src/main/java/</source>
+	</sources>
+	<packages>
+		<package name="org.cmake.Coverage" line-rate="0.7222222222222222" branch-rate="0.875" complexity="0.0">
+			<classes>
+				<class name="org.cmake.Coverage.CoverageTest" filename="org/cmake/CoverageTest.java" line-rate="0.7222222222222222" branch-rate="0.875" complexity="0.0">
+					<methods>
+						<method name="&lt;clinit&gt;" signature="()V" line-rate="1.0" branch-rate="1.0">
+							<lines>
+								<line number="10" hits="2" branch="false"/>
+								<line number="11" hits="2" branch="false"/>
+							</lines>
+						</method>
+						<method name="&lt;init&gt;" signature="()V" line-rate="0.0" branch-rate="1.0">
+							<lines>
+								<line number="8" hits="0" branch="false"/>
+								<line number="12" hits="0" branch="false"/>
+							</lines>
+						</method>
+						<method name="equalsVarOne" signature="(Ljava/lang/String;)Ljava/lang/Boolean;" line-rate="0.6666666666666666" branch-rate="0.5">
+							<lines>
+								<line number="16" hits="2" branch="true" condition-coverage="50% (1/2)">
+									<conditions>
+										<condition number="0" type="jump" coverage="50%"/>
+									</conditions>
+								</line>
+								<line number="17" hits="2" branch="false"/>
+								<line number="20" hits="0" branch="false"/>
+							</lines>
+						</method>
+						<method name="equalsVarTwo" signature="(Ljava/lang/String;)Z" line-rate="1.0" branch-rate="1.0">
+							<lines>
+								<line number="26" hits="4" branch="true" condition-coverage="100% (2/2)">
+									<conditions>
+										<condition number="0" type="jump" coverage="100%"/>
+									</conditions>
+								</line>
+								<line number="27" hits="2" branch="false"/>
+								<line number="30" hits="2" branch="false"/>
+							</lines>
+						</method>
+						<method name="timesIntOne" signature="(Ljava/lang/Integer;)Ljava/lang/Integer;" line-rate="0.0" branch-rate="1.0">
+							<lines>
+								<line number="35" hits="0" branch="false"/>
+								<line number="36" hits="0" branch="false"/>
+							</lines>
+						</method>
+						<method name="whileLoop" signature="(Ljava/lang/Integer;)Z" line-rate="1.0" branch-rate="1.0">
+							<lines>
+								<line number="41" hits="2" branch="false"/>
+								<line number="42" hits="10" branch="true" condition-coverage="100% (2/2)">
+									<conditions>
+										<condition number="0" type="jump" coverage="100%"/>
+									</conditions>
+								</line>
+								<line number="43" hits="8" branch="false"/>
+								<line number="45" hits="2" branch="true" condition-coverage="100% (2/2)">
+									<conditions>
+										<condition number="0" type="jump" coverage="100%"/>
+									</conditions>
+								</line>
+								<line number="46" hits="1" branch="false"/>
+								<line number="49" hits="1" branch="false"/>
+							</lines>
+						</method>
+					</methods>
+					<lines>
+						<line number="8" hits="0" branch="false"/>
+						<line number="10" hits="2" branch="false"/>
+						<line number="11" hits="2" branch="false"/>
+						<line number="12" hits="0" branch="false"/>
+						<line number="16" hits="2" branch="true" condition-coverage="50% (1/2)">
+							<conditions>
+								<condition number="0" type="jump" coverage="50%"/>
+							</conditions>
+						</line>
+						<line number="17" hits="2" branch="false"/>
+						<line number="20" hits="0" branch="false"/>
+						<line number="26" hits="4" branch="true" condition-coverage="100% (2/2)">
+							<conditions>
+								<condition number="0" type="jump" coverage="100%"/>
+							</conditions>
+						</line>
+						<line number="27" hits="2" branch="false"/>
+						<line number="30" hits="2" branch="false"/>
+						<line number="35" hits="0" branch="false"/>
+						<line number="36" hits="0" branch="false"/>
+						<line number="41" hits="2" branch="false"/>
+						<line number="42" hits="10" branch="true" condition-coverage="100% (2/2)">
+							<conditions>
+								<condition number="0" type="jump" coverage="100%"/>
+							</conditions>
+						</line>
+						<line number="43" hits="8" branch="false"/>
+						<line number="45" hits="2" branch="true" condition-coverage="100% (2/2)">
+							<conditions>
+								<condition number="0" type="jump" coverage="100%"/>
+							</conditions>
+						</line>
+						<line number="46" hits="1" branch="false"/>
+						<line number="49" hits="1" branch="false"/>
+					</lines>
+				</class>
+			</classes>
+		</package>
+	</packages>
+</coverage>

Tests/CoberturaCoverage/src/main/java/org/cmake/CoverageTest.java

@@ -0,0 +1,52 @@
+package org.cmake.Coverage;
+
+import java.io.Serializable;
+import java.util.Map;
+import java.util.List;
+import java.awt.*;
+
+public class CoverageTest {
+
+  public static String VarOne = "test1";
+  public static String VarTwo = "test2";
+  private Integer IntOne = 4;
+
+  public static Boolean equalsVarOne(String inString) {
+
+    if(VarOne.equals(inString)){
+      return true;
+    }
+    else {
+      return false;
+    }
+  }
+
+  public static boolean equalsVarTwo(String inString){
+
+    if(VarTwo.equals(inString)){
+      return true;
+    }
+    else {
+      return false;
+    }
+  }
+
+  private Integer timesIntOne(Integer inVal){
+
+    return inVal * IntOne;
+  }
+
+  public static boolean whileLoop(Integer StopInt){
+
+    Integer i = 0;
+    while(i < StopInt){
+      i=i+1;
+    }
+    if (i.equals(5)){
+     return true;
+    }
+    else {
+     return false;
+    }
+  }
+}