Merge "jacoco libs dependency for instrumented libraries"

apex/apex_test.go

@@ -8846,6 +8846,16 @@ func TestApexJavaCoverage(t *testing.T) {
 		android.FixtureMergeEnv(map[string]string{
 			"EMMA_INSTRUMENT": "true",
 		}),
+		// need to mock jacocoagent here to satisfy dependency added for
+		// instrumented libraries at build time
+		android.FixtureAddFile("jacocoagent/Android.bp", []byte(`
+			java_library {
+				name: "jacocoagent",
+				srcs: ["Test.java"],
+				system_modules: "none",
+				sdk_version: "none",
+			}
+		`)),
 	).RunTest(t)
 
 	// Make sure jacoco ran on both mylib and mybootclasspathlib

java/base.go

@@ -169,6 +169,8 @@ type CommonProperties struct {
 		Output_params []string
 	}
 
+	// If true, then jacocoagent is automatically added as a libs dependency so that
+	// r8 will not strip instrumentation classes out of dexed libraries.
 	Instrument bool `blueprint:"mutated"`
 	// If true, then the module supports statically including the jacocoagent
 	// into the library.
@@ -787,6 +789,9 @@ func (j *Module) deps(ctx android.BottomUpMutatorContext) {
 	} else if j.shouldInstrumentStatic(ctx) {
 		ctx.AddVariationDependencies(nil, staticLibTag, "jacocoagent")
 	}
+	if j.shouldInstrument(ctx) {
+		ctx.AddVariationDependencies(nil, libTag, "jacocoagent")
+	}
 
 	if j.useCompose() {
 		ctx.AddVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(), kotlinPluginTag,

java/bootclasspath_fragment_test.go

@@ -96,10 +96,22 @@ func TestBootclasspathFragmentInconsistentArtConfiguration_ApexMixture(t *testin
 }
 
 func TestBootclasspathFragment_Coverage(t *testing.T) {
-	prepareForTestWithFrameworkCoverage := android.FixtureMergeEnv(map[string]string{
-		"EMMA_INSTRUMENT":           "true",
-		"EMMA_INSTRUMENT_FRAMEWORK": "true",
-	})
+	prepareForTestWithFrameworkCoverage := android.GroupFixturePreparers(
+		android.FixtureMergeEnv(map[string]string{
+			"EMMA_INSTRUMENT":           "true",
+			"EMMA_INSTRUMENT_FRAMEWORK": "true",
+		}),
+		// need to mock jacocoagent here to satisfy dependency added for
+		// instrumented libraries at build time
+		android.FixtureAddFile("jacocoagent/Android.bp", []byte(`
+			java_library {
+				name: "jacocoagent",
+				srcs: ["Test.java"],
+				system_modules: "none",
+				sdk_version: "none",
+			}
+		`)),
+	)
 
 	prepareWithBp := android.FixtureWithRootAndroidBp(`
 		bootclasspath_fragment {