Support cc_test.isolated in bp2build

This property implicitly adds `libgtest_isolated_main` to the static
libs of the test. bp2build will make this and `liblog` explicit in BUILD
files

Since the deps are made explicit in BUILD files, `isolated` becomes a
no-op for cc_test. Remove this property from cc_test.

Test: unit tests
Bug: 244432609
Change-Id: I189a7b6b62d9064f4b2abad49ac4975468046498

bp2build/cc_test_conversion_test.go

@@ -121,7 +121,6 @@ cc_test_library {
         "//conditions:default": [],
     })`,
 				"gtest":          "True",
-				"isolated":       "False",
 				"local_includes": `["."]`,
 				"dynamic_deps": `[":cc_test_lib2"] + select({
         "//build/bazel/platforms/os:android": [":foolib"],
@@ -158,7 +157,6 @@ cc_test {
 		targets: []testBazelTarget{
 			{"cc_test", "mytest", AttrNameToString{
 				"gtest":          "False",
-				"isolated":       "False",
 				"local_includes": `["."]`,
 				"srcs":           `["test.cpp"]`,
 			},
@@ -185,7 +183,6 @@ cc_test {
 				"local_includes": `["."]`,
 				"srcs":           `["test.cpp"]`,
 				"gtest":          "True",
-				"isolated":       "False",
 				"deps": `[
         ":libgtest_main",
         ":libgtest",
@@ -213,7 +210,6 @@ cc_test {
 		targets: []testBazelTarget{
 			{"cc_test", "mytest", AttrNameToString{
 				"gtest":                  "True",
-				"isolated":               "False",
 				"local_includes":         `["."]`,
 				"srcs":                   `["test.cpp"]`,
 				"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
@@ -244,7 +240,6 @@ cc_test {
 		targets: []testBazelTarget{
 			{"cc_test", "mytest", AttrNameToString{
 				"gtest":                  "True",
-				"isolated":               "False",
 				"local_includes":         `["."]`,
 				"srcs":                   `["test.cpp"]`,
 				"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
@@ -273,13 +268,12 @@ cc_test {
 	auto_gen_config: true,
 	isolated: true,
 }
-` + simpleModuleDoNotConvertBp2build("cc_library_static", "libgtest_main") +
+` + simpleModuleDoNotConvertBp2build("cc_library_static", "libgtest_isolated_main") +
-			simpleModuleDoNotConvertBp2build("cc_library_static", "libgtest"),
+			simpleModuleDoNotConvertBp2build("cc_library", "liblog"),
 		targets: []testBazelTarget{
 			{"cc_test", "mytest", AttrNameToString{
 				"auto_generate_test_config": "True",
 				"gtest":                     "True",
-				"isolated":                  "True",
 				"local_includes":            `["."]`,
 				"srcs":                      `["test.cpp"]`,
 				"target_compatible_with":    `["//build/bazel/platforms/os:android"]`,
@@ -289,10 +283,8 @@ cc_test {
     ]`,
 				"template_install_base": `"/data/local/tmp"`,
 				"template_test_config":  `"test_config_template.xml"`,
-				"deps": `[
+				"deps":                  `[":libgtest_isolated_main"]`,
-        ":libgtest_main",
+				"dynamic_deps":          `[":liblog"]`,
-        ":libgtest",
-    ]`,
 			},
 			},
 		},
@@ -313,7 +305,6 @@ cc_test {
 		targets: []testBazelTarget{
 			{"cc_test", "mytest", AttrNameToString{
 				"gtest":                  "True",
-				"isolated":               "False",
 				"local_includes":         `["."]`,
 				"srcs":                   `["test.cpp"]`,
 				"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
@@ -327,3 +318,29 @@ cc_test {
 	})
 
 }
+
+func TestCcTest_WithIsolatedTurnedOn(t *testing.T) {
+	runCcTestTestCase(t, ccTestBp2buildTestCase{
+		description: "cc test that sets `isolated: true` should run with ligtest_isolated_main instead of libgtest_main",
+		blueprint: `
+cc_test {
+	name: "mytest",
+	srcs: ["test.cpp"],
+	isolated: true,
+}
+` + simpleModuleDoNotConvertBp2build("cc_library_static", "libgtest_isolated_main") +
+			simpleModuleDoNotConvertBp2build("cc_library", "liblog"),
+		targets: []testBazelTarget{
+			{"cc_test", "mytest", AttrNameToString{
+				"gtest":                  "True",
+				"local_includes":         `["."]`,
+				"srcs":                   `["test.cpp"]`,
+				"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
+				"deps":                   `[":libgtest_isolated_main"]`,
+				"dynamic_deps":           `[":liblog"]`,
+			},
+			},
+		},
+	})
+
+}

cc/test.go

@@ -683,7 +683,6 @@ type testBinaryAttributes struct {
 	binaryAttributes
 
 	Gtest bool
-	Isolated bool
 
 	tidyAttributes
 	tradefed.TestConfigAttributes
@@ -725,12 +724,11 @@ func testBinaryBp2build(ctx android.TopDownMutatorContext, m *Module) {
 	for _, propIntf := range m.GetProperties() {
 		if testLinkerProps, ok := propIntf.(*TestLinkerProperties); ok {
 			testBinaryAttrs.Gtest = proptools.BoolDefault(testLinkerProps.Gtest, true)
-			testBinaryAttrs.Isolated = gtestIsolated
 			break
 		}
 	}
 
-	addImplicitGtestDeps(ctx, &testBinaryAttrs)
+	addImplicitGtestDeps(ctx, &testBinaryAttrs, gtestIsolated)
 
 	for _, testProps := range m.GetProperties() {
 		if p, ok := testProps.(*TestBinaryProperties); ok {
@@ -766,18 +764,25 @@ func testBinaryBp2build(ctx android.TopDownMutatorContext, m *Module) {
 
 // cc_test that builds using gtest needs some additional deps
 // addImplicitGtestDeps makes these deps explicit in the generated BUILD files
-func addImplicitGtestDeps(ctx android.BazelConversionPathContext, attrs *testBinaryAttributes) {
+func addImplicitGtestDeps(ctx android.BazelConversionPathContext, attrs *testBinaryAttributes, gtestIsolated bool) {
+	addDepsAndDedupe := func(lla *bazel.LabelListAttribute, modules []string) {
+		moduleLabels := android.BazelLabelForModuleDeps(ctx, modules)
+		lla.Value.Append(moduleLabels)
+		// Dedupe
+		lla.Value = bazel.FirstUniqueBazelLabelList(lla.Value)
+	}
+	// this must be kept in sync with Soong's implementation in:
+	// https://cs.android.com/android/_/android/platform/build/soong/+/460fb2d6d546b5ab493a7e5479998c4933a80f73:cc/test.go;l=300-313;drc=ec7314336a2b35ea30ce5438b83949c28e3ac429;bpv=1;bpt=0
 	if attrs.Gtest {
-		gtestDeps := android.BazelLabelForModuleDeps(
+		// TODO - b/244433197: Handle canUseSdk
-			ctx,
+		if gtestIsolated {
-			[]string{
+			addDepsAndDedupe(&attrs.Deps, []string{"libgtest_isolated_main"})
+			addDepsAndDedupe(&attrs.Dynamic_deps, []string{"liblog"})
+		} else {
+			addDepsAndDedupe(&attrs.Deps, []string{
 				"libgtest_main",
 				"libgtest",
-			},
+			})
-		)
+		}
-		attrs.Deps.Value.Append(gtestDeps)
-		// Dedupe
-		attrs.Deps.Value = bazel.FirstUniqueBazelLabelList(attrs.Deps.Value)
 	}
-	// TODO(b/244432609): handle `isolated` property.
 }