Hook gtest to the test command

Author: r1viollet

ddprof-lib/build.gradle

@@ -112,7 +112,7 @@ def createDebugLinkTask(config, linkTask, extractDebugTask) {
     }
     dependsOn extractDebugTask
     description = 'Add debug link to the original library'
-    
+
     inputs.files linkTask, extractDebugTask
     outputs.file { linkTask.get().linkedFile.get().asFile }
 
@@ -362,7 +362,7 @@ def patchStackFrame = tasks.register("patchStackFrame") {
   }
   inputs.files copyUpstreamFiles
   outputs.file("${projectDir}/src/main/cpp-external/stackFrame_x64.cpp")
-  
+
   doLast {
     def file = file("${projectDir}/src/main/cpp-external/stackFrame_x64.cpp")
     if (!file.exists()) throw new GradleException("File not found: ${file}")
@@ -417,7 +417,7 @@ def patchStackWalker = tasks.register("patchStackWalker") {
   }
   inputs.files copyUpstreamFiles
   outputs.file("${projectDir}/src/main/cpp-external/stackWalker.cpp")
-  
+
   doLast {
     def file = file("${projectDir}/src/main/cpp-external/stackWalker.cpp")
     if (!file.exists()) throw new GradleException("File not found: ${file}")

ddprof-lib/gtest/build.gradle

@@ -199,7 +199,8 @@ tasks.whenTaskAdded { task ->
               }
 
               inputs.files binary
-              outputs.upToDateWhen {true}
+              // Test tasks should run every time the test command is run
+              outputs.upToDateWhen { false }
             }
 
             def compileTask = tasks.findByName("compileGtest${config.name.capitalize()}_${testName}")

ddprof-test/build.gradle

@@ -120,5 +120,11 @@ gradle.projectsEvaluated {
     if (testTask && assembleTask) {
       assembleTask.dependsOn testTask
     }
+    
+    // Hook C++ gtest tasks to run as part of the corresponding Java test tasks
+    def gtestTask = project(':ddprof-lib:gtest').tasks.findByName("gtest${it.capitalize()}")
+    if (testTask && gtestTask) {
+      testTask.dependsOn gtestTask
+    }
   }
 }