android/arch_test.go - LeafOS-Project/android_build_soong - Gitiles

 // Copyright 2019 Google Inc. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 package android

 import (
 	"reflect"
 	"runtime"
 	"testing"

 	"github.com/google/blueprint/proptools"
 )

 type Named struct {
 	A *string `android:"arch_variant"`
 	B *string
 }

 type NamedAllFiltered struct {
 	A *string
 }

 type NamedNoneFiltered struct {
 	A *string `android:"arch_variant"`
 }

 func TestFilterArchStruct(t *testing.T) {
 	tests := []struct {
 		name     string
 		in       interface{}
 		out      interface{}
 		filtered bool
 	}{
 		// Property tests
 		{
 			name: "basic",
 			in: &struct {
 				A *string `android:"arch_variant"`
 				B *string
 			}{},
 			out: &struct {
 				A *string
 			}{},
 			filtered: true,
 		},
 		{
 			name: "tags",
 			in: &struct {
 				A *string `android:"arch_variant"`
 				B *string `android:"arch_variant,path"`
 				C *string `android:"arch_variant,path,variant_prepend"`
 				D *string `android:"path,variant_prepend,arch_variant"`
 				E *string `android:"path"`
 				F *string
 			}{},
 			out: &struct {
 				A *string
 				B *string
 				C *string
 				D *string
 			}{},
 			filtered: true,
 		},
 		{
 			name: "all filtered",
 			in: &struct {
 				A *string
 			}{},
 			out:      nil,
 			filtered: true,
 		},
 		{
 			name: "none filtered",
 			in: &struct {
 				A *string `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A *string `android:"arch_variant"`
 			}{},
 			filtered: false,
 		},

 		// Sub-struct tests
 		{
 			name: "substruct",
 			in: &struct {
 				A struct {
 					A *string `android:"arch_variant"`
 					B *string
 				} `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A struct {
 					A *string
 				}
 			}{},
 			filtered: true,
 		},
 		{
 			name: "substruct all filtered",
 			in: &struct {
 				A struct {
 					A *string
 				} `android:"arch_variant"`
 			}{},
 			out:      nil,
 			filtered: true,
 		},
 		{
 			name: "substruct none filtered",
 			in: &struct {
 				A struct {
 					A *string `android:"arch_variant"`
 				} `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A struct {
 					A *string `android:"arch_variant"`
 				} `android:"arch_variant"`
 			}{},
 			filtered: false,
 		},

 		// Named sub-struct tests
 		{
 			name: "named substruct",
 			in: &struct {
 				A Named `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A struct {
 					A *string
 				}
 			}{},
 			filtered: true,
 		},
 		{
 			name: "substruct all filtered",
 			in: &struct {
 				A NamedAllFiltered `android:"arch_variant"`
 			}{},
 			out:      nil,
 			filtered: true,
 		},
 		{
 			name: "substruct none filtered",
 			in: &struct {
 				A NamedNoneFiltered `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A NamedNoneFiltered `android:"arch_variant"`
 			}{},
 			filtered: false,
 		},

 		// Pointer to sub-struct tests
 		{
 			name: "pointer substruct",
 			in: &struct {
 				A *struct {
 					A *string `android:"arch_variant"`
 					B *string
 				} `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A *struct {
 					A *string
 				}
 			}{},
 			filtered: true,
 		},
 		{
 			name: "pointer substruct all filtered",
 			in: &struct {
 				A *struct {
 					A *string
 				} `android:"arch_variant"`
 			}{},
 			out:      nil,
 			filtered: true,
 		},
 		{
 			name: "pointer substruct none filtered",
 			in: &struct {
 				A *struct {
 					A *string `android:"arch_variant"`
 				} `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A *struct {
 					A *string `android:"arch_variant"`
 				} `android:"arch_variant"`
 			}{},
 			filtered: false,
 		},

 		// Pointer to named sub-struct tests
 		{
 			name: "pointer named substruct",
 			in: &struct {
 				A *Named `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A *struct {
 					A *string
 				}
 			}{},
 			filtered: true,
 		},
 		{
 			name: "pointer substruct all filtered",
 			in: &struct {
 				A *NamedAllFiltered `android:"arch_variant"`
 			}{},
 			out:      nil,
 			filtered: true,
 		},
 		{
 			name: "pointer substruct none filtered",
 			in: &struct {
 				A *NamedNoneFiltered `android:"arch_variant"`
 			}{},
 			out: &struct {
 				A *NamedNoneFiltered `android:"arch_variant"`
 			}{},
 			filtered: false,
 		},
 	}

 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
 			out, filtered := proptools.FilterPropertyStruct(reflect.TypeOf(test.in), filterArchStruct)
 			if filtered != test.filtered {
 				t.Errorf("expected filtered %v, got %v", test.filtered, filtered)
 			}
 			expected := reflect.TypeOf(test.out)
 			if out != expected {
 				t.Errorf("expected type %v, got %v", expected, out)
 			}
 		})
 	}
 }

 type archTestModule struct {
 	ModuleBase
 	props struct {
 		Deps []string
 	}
 }

 func (m *archTestMultiTargetsModule) GenerateAndroidBuildActions(ctx ModuleContext) {
 }

 func (m *archTestMultiTargetsModule) DepsMutator(ctx BottomUpMutatorContext) {
 	ctx.AddDependency(ctx.Module(), nil, m.props.Deps...)
 }

 func archTestMultiTargetsModuleFactory() Module {
 	m := &archTestMultiTargetsModule{}
 	m.AddProperties(&m.props)
 	InitAndroidMultiTargetsArchModule(m, HostAndDeviceSupported, MultilibCommon)
 	return m
 }

 type archTestMultiTargetsModule struct {
 	ModuleBase
 	props struct {
 		Deps []string
 	}
 }

 func (m *archTestModule) GenerateAndroidBuildActions(ctx ModuleContext) {
 }

 func (m *archTestModule) DepsMutator(ctx BottomUpMutatorContext) {
 	ctx.AddDependency(ctx.Module(), nil, m.props.Deps...)
 }

 func archTestModuleFactory() Module {
 	m := &archTestModule{}
 	m.AddProperties(&m.props)
 	InitAndroidArchModule(m, HostAndDeviceSupported, MultilibBoth)
 	return m
 }

 var prepareForArchTest = GroupFixturePreparers(
 	PrepareForTestWithArchMutator,
 	FixtureRegisterWithContext(func(ctx RegistrationContext) {
 		ctx.RegisterModuleType("module", archTestModuleFactory)
 		ctx.RegisterModuleType("multi_targets_module", archTestMultiTargetsModuleFactory)
 	}),
 )

 func TestArchMutator(t *testing.T) {
 	var buildOSVariants []string
 	var buildOS64Variants []string
 	var buildOS32Variants []string
 	var buildOSCommonVariant string

 	switch runtime.GOOS {
 	case "linux":
 		buildOSVariants = []string{"linux_glibc_x86_64", "linux_glibc_x86"}
 		buildOS64Variants = []string{"linux_glibc_x86_64"}
 		buildOS32Variants = []string{"linux_glibc_x86"}
 		buildOSCommonVariant = "linux_glibc_common"
 	case "darwin":
 		buildOSVariants = []string{"darwin_x86_64"}
 		buildOS64Variants = []string{"darwin_x86_64"}
 		buildOS32Variants = nil
 		buildOSCommonVariant = "darwin_common"
 	}

 	bp := `
 		module {
 			name: "foo",
 		}

 		module {
 			name: "bar",
 			host_supported: true,
 		}

 		module {
 			name: "baz",
 			device_supported: false,
 		}

 		module {
 			name: "qux",
 			host_supported: true,
 			compile_multilib: "32",
 		}

 		module {
 			name: "first",
 			host_supported: true,
 			compile_multilib: "first",
 		}

 		multi_targets_module {
 			name: "multi_targets",
 			host_supported: true,
 		}
 	`

 	testCases := []struct {
 		name          string
 		preparer      FixturePreparer
 		fooVariants   []string
 		barVariants   []string
 		bazVariants   []string
 		quxVariants   []string
 		firstVariants []string

 		multiTargetVariants    []string
 		multiTargetVariantsMap map[string][]string

 		goOS string
 	}{
 		{
 			name:                "normal",
 			preparer:            nil,
 			fooVariants:         []string{"android_arm64_armv8-a", "android_arm_armv7-a-neon"},
 			barVariants:         append(buildOSVariants, "android_arm64_armv8-a", "android_arm_armv7-a-neon"),
 			bazVariants:         nil,
 			quxVariants:         append(buildOS32Variants, "android_arm_armv7-a-neon"),
 			firstVariants:       append(buildOS64Variants, "android_arm64_armv8-a"),
 			multiTargetVariants: []string{buildOSCommonVariant, "android_common"},
 			multiTargetVariantsMap: map[string][]string{
 				buildOSCommonVariant: buildOS64Variants,
 				"android_common":     {"android_arm64_armv8-a"},
 			}},
 		{
 			name: "host-only",
 			preparer: FixtureModifyConfig(func(config Config) {
 				config.BuildOSTarget = Target{}
 				config.BuildOSCommonTarget = Target{}
 				config.Targets[Android] = nil
 			}),
 			fooVariants:         nil,
 			barVariants:         buildOSVariants,
 			bazVariants:         nil,
 			quxVariants:         buildOS32Variants,
 			firstVariants:       buildOS64Variants,
 			multiTargetVariants: []string{buildOSCommonVariant},
 			multiTargetVariantsMap: map[string][]string{
 				buildOSCommonVariant: buildOS64Variants,
 			},
 		},
 		{
 			name: "same arch host and host cross",
 			preparer: FixtureModifyConfig(func(config Config) {
 				ModifyTestConfigForMusl(config)
 				modifyTestConfigForMuslArm64HostCross(config)
 			}),
 			fooVariants:         []string{"android_arm64_armv8-a", "android_arm_armv7-a-neon"},
 			barVariants:         []string{"linux_musl_x86_64", "linux_musl_arm64", "linux_musl_x86", "android_arm64_armv8-a", "android_arm_armv7-a-neon"},
 			bazVariants:         nil,
 			quxVariants:         []string{"linux_musl_x86", "android_arm_armv7-a-neon"},
 			firstVariants:       []string{"linux_musl_x86_64", "linux_musl_arm64", "android_arm64_armv8-a"},
 			multiTargetVariants: []string{"linux_musl_common", "android_common"},
 			multiTargetVariantsMap: map[string][]string{
 				"linux_musl_common": {"linux_musl_x86_64"},
 				"android_common":    {"android_arm64_armv8-a"},
 			},
 			goOS: "linux",
 		},
 	}

 	enabledVariants := func(ctx *TestContext, name string) []string {
 		var ret []string
 		variants := ctx.ModuleVariantsForTests(name)
 		for _, variant := range variants {
 			m := ctx.ModuleForTests(name, variant)
 			if m.Module().Enabled() {
 				ret = append(ret, variant)
 			}
 		}
 		return ret
 	}

 	moduleMultiTargets := func(ctx *TestContext, name string, variant string) []string {
 		var ret []string
 		targets := ctx.ModuleForTests(name, variant).Module().MultiTargets()
 		for _, t := range targets {
 			ret = append(ret, t.String())
 		}
 		return ret
 	}

 	for _, tt := range testCases {
 		t.Run(tt.name, func(t *testing.T) {
 			if tt.goOS != runtime.GOOS {
 				t.Skipf("requries runtime.GOOS %s", tt.goOS)
 			}

 			result := GroupFixturePreparers(
 				prepareForArchTest,
 				// Test specific preparer
 				OptionalFixturePreparer(tt.preparer),
 				FixtureWithRootAndroidBp(bp),
 			).RunTest(t)
 			ctx := result.TestContext

 			if g, w := enabledVariants(ctx, "foo"), tt.fooVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want foo variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "bar"), tt.barVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want bar variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "baz"), tt.bazVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want baz variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "qux"), tt.quxVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want qux variants:\n%q\ngot:\n%q\n", w, g)
 			}
 			if g, w := enabledVariants(ctx, "first"), tt.firstVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want first variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "multi_targets"), tt.multiTargetVariants; !reflect.DeepEqual(w, g) {
 				t.Fatalf("want multi_target variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			for _, variant := range tt.multiTargetVariants {
 				targets := moduleMultiTargets(ctx, "multi_targets", variant)
 				if g, w := targets, tt.multiTargetVariantsMap[variant]; !reflect.DeepEqual(w, g) {
 					t.Errorf("want ctx.MultiTarget() for %q:\n%q\ngot:\n%q\n", variant, w, g)
 				}
 			}
 		})
 	}
 }

 func TestArchMutatorNativeBridge(t *testing.T) {
 	bp := `
 		// This module is only enabled for x86.
 		module {
 			name: "foo",
 		}

 		// This module is enabled for x86 and arm (via native bridge).
 		module {
 			name: "bar",
 			native_bridge_supported: true,
 		}

 		// This module is enabled for arm (native_bridge) only.
 		module {
 			name: "baz",
 			native_bridge_supported: true,
 			enabled: false,
 			target: {
 				native_bridge: {
 					enabled: true,
 				}
 			}
 		}
 	`

 	testCases := []struct {
 		name        string
 		preparer    FixturePreparer
 		fooVariants []string
 		barVariants []string
 		bazVariants []string
 	}{
 		{
 			name:        "normal",
 			preparer:    nil,
 			fooVariants: []string{"android_x86_64_silvermont", "android_x86_silvermont"},
 			barVariants: []string{"android_x86_64_silvermont", "android_native_bridge_arm64_armv8-a", "android_x86_silvermont", "android_native_bridge_arm_armv7-a-neon"},
 			bazVariants: []string{"android_native_bridge_arm64_armv8-a", "android_native_bridge_arm_armv7-a-neon"},
 		},
 	}

 	enabledVariants := func(ctx *TestContext, name string) []string {
 		var ret []string
 		variants := ctx.ModuleVariantsForTests(name)
 		for _, variant := range variants {
 			m := ctx.ModuleForTests(name, variant)
 			if m.Module().Enabled() {
 				ret = append(ret, variant)
 			}
 		}
 		return ret
 	}

 	for _, tt := range testCases {
 		t.Run(tt.name, func(t *testing.T) {
 			result := GroupFixturePreparers(
 				prepareForArchTest,
 				// Test specific preparer
 				OptionalFixturePreparer(tt.preparer),
 				// Prepare for native bridge test
 				FixtureModifyConfig(func(config Config) {
 					config.Targets[Android] = []Target{
 						{Android, Arch{ArchType: X86_64, ArchVariant: "silvermont", Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", "", false},
 						{Android, Arch{ArchType: X86, ArchVariant: "silvermont", Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", "", false},
 						{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Abi: []string{"arm64-v8a"}}, NativeBridgeEnabled, "x86_64", "arm64", false},
 						{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Abi: []string{"armeabi-v7a"}}, NativeBridgeEnabled, "x86", "arm", false},
 					}
 				}),
 				FixtureWithRootAndroidBp(bp),
 			).RunTest(t)

 			ctx := result.TestContext

 			if g, w := enabledVariants(ctx, "foo"), tt.fooVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want foo variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "bar"), tt.barVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want bar variants:\n%q\ngot:\n%q\n", w, g)
 			}

 			if g, w := enabledVariants(ctx, "baz"), tt.bazVariants; !reflect.DeepEqual(w, g) {
 				t.Errorf("want qux variants:\n%q\ngot:\n%q\n", w, g)
 			}
 		})
 	}
 }

 type testArchPropertiesModule struct {
 	ModuleBase
 	properties struct {
 		A []string `android:"arch_variant"`
 	}
 }

 func (testArchPropertiesModule) GenerateAndroidBuildActions(ctx ModuleContext) {}

 // Module property "a" does not have "variant_prepend" tag.
 // Expected variant property orders are based on this fact.
 func TestArchProperties(t *testing.T) {
 	bp := `
 		module {
 			name: "foo",
 			a: ["root"],
 			arch: {
 				arm: {
 					a:  ["arm"],
 				},
 				arm64: {
 					a:  ["arm64"],
 				},
 				riscv64: { a: ["riscv64"] },
 				x86: { a:  ["x86"] },
 				x86_64: { a:  ["x86_64"] },
 			},
 			multilib: {
 				lib32: { a:  ["lib32"] },
 				lib64: { a:  ["lib64"] },
 			},
 			target: {
 				bionic: { a:  ["bionic"] },
 				host: { a: ["host"] },
 				android: { a:  ["android"] },
 				glibc: { a:  ["glibc"] },
 				musl: { a:  ["musl"] },
 				linux_bionic: { a:  ["linux_bionic"] },
 				linux: { a:  ["linux"] },
 				host_linux: { a: ["host_linux"] },
 				linux_glibc: { a:  ["linux_glibc"] },
 				linux_musl: { a:  ["linux_musl"] },
 				windows: { a:  ["windows"], enabled: true },
 				darwin: { a:  ["darwin"] },
 				not_windows: { a:  ["not_windows"] },
 				android32: { a:  ["android32"] },
 				android64: { a:  ["android64"] },
 				android_arm: { a:  ["android_arm"] },
 				android_arm64: { a:  ["android_arm64"] },
 				linux_x86: { a:  ["linux_x86"] },
 				linux_x86_64: { a:  ["linux_x86_64"] },
 				linux_glibc_x86: { a:  ["linux_glibc_x86"] },
 				linux_glibc_x86_64: { a:  ["linux_glibc_x86_64"] },
 				linux_musl_x86: { a:  ["linux_musl_x86"] },
 				linux_musl_x86_64: { a:  ["linux_musl_x86_64"] },
 				darwin_x86_64: { a:  ["darwin_x86_64"] },
 				windows_x86: { a:  ["windows_x86"] },
 				windows_x86_64: { a:  ["windows_x86_64"] },
 			},
 		}
 	`

 	type result struct {
 		module   string
 		variant  string
 		property []string
 	}

 	testCases := []struct {
 		name     string
 		goOS     string
 		preparer FixturePreparer
 		results  []result
 	}{
 		{
 			name: "default",
 			results: []result{
 				{
 					module:   "foo",
 					variant:  "android_arm64_armv8-a",
 					property: []string{"root", "linux", "bionic", "android", "android64", "arm64", "lib64", "android_arm64"},
 				},
 				{
 					module:   "foo",
 					variant:  "android_arm_armv7-a-neon",
 					property: []string{"root", "linux", "bionic", "android", "android64", "arm", "lib32", "android_arm"},
 				},
 			},
 		},
 		{
 			name: "linux",
 			goOS: "linux",
 			results: []result{
 				{
 					module:   "foo",
 					variant:  "linux_glibc_x86_64",
 					property: []string{"root", "host", "linux", "host_linux", "glibc", "linux_glibc", "not_windows", "x86_64", "lib64", "linux_x86_64", "linux_glibc_x86_64"},
 				},
 				{
 					module:   "foo",
 					variant:  "linux_glibc_x86",
 					property: []string{"root", "host", "linux", "host_linux", "glibc", "linux_glibc", "not_windows", "x86", "lib32", "linux_x86", "linux_glibc_x86"},
 				},
 			},
 		},
 		{
 			name: "windows",
 			goOS: "linux",
 			preparer: FixtureModifyConfig(func(config Config) {
 				config.Targets[Windows] = []Target{
 					{Windows, Arch{ArchType: X86_64}, NativeBridgeDisabled, "", "", true},
 					{Windows, Arch{ArchType: X86}, NativeBridgeDisabled, "", "", true},
 				}
 			}),
 			results: []result{
 				{
 					module:   "foo",
 					variant:  "windows_x86_64",
 					property: []string{"root", "host", "windows", "x86_64", "lib64", "windows_x86_64"},
 				},
 				{
 					module:   "foo",
 					variant:  "windows_x86",
 					property: []string{"root", "host", "windows", "x86", "lib32", "windows_x86"},
 				},
 			},
 		},
 		{
 			name:     "linux_musl",
 			goOS:     "linux",
 			preparer: FixtureModifyConfig(ModifyTestConfigForMusl),
 			results: []result{
 				{
 					module:   "foo",
 					variant:  "linux_musl_x86_64",
 					property: []string{"root", "host", "linux", "host_linux", "musl", "linux_musl", "not_windows", "x86_64", "lib64", "linux_x86_64", "linux_musl_x86_64"},
 				},
 				{
 					module:   "foo",
 					variant:  "linux_musl_x86",
 					property: []string{"root", "host", "linux", "host_linux", "musl", "linux_musl", "not_windows", "x86", "lib32", "linux_x86", "linux_musl_x86"},
 				},
 			},
 		},
 		{
 			name: "darwin",
 			goOS: "darwin",
 			results: []result{
 				{
 					module:   "foo",
 					variant:  "darwin_x86_64",
 					property: []string{"root", "host", "darwin", "not_windows", "x86_64", "lib64", "darwin_x86_64"},
 				},
 			},
 		},
 	}

 	for _, tt := range testCases {
 		t.Run(tt.name, func(t *testing.T) {
 			if tt.goOS != "" && tt.goOS != runtime.GOOS {
 				t.Skipf("test requires runtime.GOOS==%s, got %s", tt.goOS, runtime.GOOS)
 			}
 			result := GroupFixturePreparers(
 				PrepareForTestWithArchMutator,
 				OptionalFixturePreparer(tt.preparer),
 				FixtureRegisterWithContext(func(ctx RegistrationContext) {
 					ctx.RegisterModuleType("module", func() Module {
 						module := &testArchPropertiesModule{}
 						module.AddProperties(&module.properties)
 						InitAndroidArchModule(module, HostAndDeviceDefault, MultilibBoth)
 						return module
 					})
 				}),
 			).RunTestWithBp(t, bp)

 			for _, want := range tt.results {
 				t.Run(want.module+"_"+want.variant, func(t *testing.T) {
 					got := result.ModuleForTests(want.module, want.variant).Module().(*testArchPropertiesModule).properties.A
 					AssertArrayString(t, "arch mutator property", want.property, got)
 				})
 			}
 		})
 	}
 }
	// Copyright 2019 Google Inc. All rights reserved.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	package android

	import (
	"reflect"
	"runtime"
	"testing"

	"github.com/google/blueprint/proptools"
	)

	type Named struct {
	A *string `android:"arch_variant"`
	B *string
	}

	type NamedAllFiltered struct {
	A *string
	}

	type NamedNoneFiltered struct {
	A *string `android:"arch_variant"`
	}

	func TestFilterArchStruct(t *testing.T) {
	tests := []struct {
	name string
	in interface{}
	out interface{}
	filtered bool
	}{
	// Property tests
	{
	name: "basic",
	in: &struct {
	A *string `android:"arch_variant"`
	B *string
	}{},
	out: &struct {
	A *string
	}{},
	filtered: true,
	},
	{
	name: "tags",
	in: &struct {
	A *string `android:"arch_variant"`
	B *string `android:"arch_variant,path"`
	C *string `android:"arch_variant,path,variant_prepend"`
	D *string `android:"path,variant_prepend,arch_variant"`
	E *string `android:"path"`
	F *string
	}{},
	out: &struct {
	A *string
	B *string
	C *string
	D *string
	}{},
	filtered: true,
	},
	{
	name: "all filtered",
	in: &struct {
	A *string
	}{},
	out: nil,
	filtered: true,
	},
	{
	name: "none filtered",
	in: &struct {
	A *string `android:"arch_variant"`
	}{},
	out: &struct {
	A *string `android:"arch_variant"`
	}{},
	filtered: false,
	},

	// Sub-struct tests
	{
	name: "substruct",
	in: &struct {
	A struct {
	A *string `android:"arch_variant"`
	B *string
	} `android:"arch_variant"`
	}{},
	out: &struct {
	A struct {
	A *string
	}
	}{},
	filtered: true,
	},
	{
	name: "substruct all filtered",
	in: &struct {
	A struct {
	A *string
	} `android:"arch_variant"`
	}{},
	out: nil,
	filtered: true,
	},
	{
	name: "substruct none filtered",
	in: &struct {
	A struct {
	A *string `android:"arch_variant"`
	} `android:"arch_variant"`
	}{},
	out: &struct {
	A struct {
	A *string `android:"arch_variant"`
	} `android:"arch_variant"`
	}{},
	filtered: false,
	},

	// Named sub-struct tests
	{
	name: "named substruct",
	in: &struct {
	A Named `android:"arch_variant"`
	}{},
	out: &struct {
	A struct {
	A *string
	}
	}{},
	filtered: true,
	},
	{
	name: "substruct all filtered",
	in: &struct {
	A NamedAllFiltered `android:"arch_variant"`
	}{},
	out: nil,
	filtered: true,
	},
	{
	name: "substruct none filtered",
	in: &struct {
	A NamedNoneFiltered `android:"arch_variant"`
	}{},
	out: &struct {
	A NamedNoneFiltered `android:"arch_variant"`
	}{},
	filtered: false,
	},

	// Pointer to sub-struct tests
	{
	name: "pointer substruct",
	in: &struct {
	A *struct {
	A *string `android:"arch_variant"`
	B *string
	} `android:"arch_variant"`
	}{},
	out: &struct {
	A *struct {
	A *string
	}
	}{},
	filtered: true,
	},
	{
	name: "pointer substruct all filtered",
	in: &struct {
	A *struct {
	A *string
	} `android:"arch_variant"`
	}{},
	out: nil,
	filtered: true,
	},
	{
	name: "pointer substruct none filtered",
	in: &struct {
	A *struct {
	A *string `android:"arch_variant"`
	} `android:"arch_variant"`
	}{},
	out: &struct {
	A *struct {
	A *string `android:"arch_variant"`
	} `android:"arch_variant"`
	}{},
	filtered: false,
	},

	// Pointer to named sub-struct tests
	{
	name: "pointer named substruct",
	in: &struct {
	A *Named `android:"arch_variant"`
	}{},
	out: &struct {
	A *struct {
	A *string
	}
	}{},
	filtered: true,
	},
	{
	name: "pointer substruct all filtered",
	in: &struct {
	A *NamedAllFiltered `android:"arch_variant"`
	}{},
	out: nil,
	filtered: true,
	},
	{
	name: "pointer substruct none filtered",
	in: &struct {
	A *NamedNoneFiltered `android:"arch_variant"`
	}{},
	out: &struct {
	A *NamedNoneFiltered `android:"arch_variant"`
	}{},
	filtered: false,
	},
	}

	for _, test := range tests {
	t.Run(test.name, func(t *testing.T) {
	out, filtered := proptools.FilterPropertyStruct(reflect.TypeOf(test.in), filterArchStruct)
	if filtered != test.filtered {
	t.Errorf("expected filtered %v, got %v", test.filtered, filtered)
	}
	expected := reflect.TypeOf(test.out)
	if out != expected {
	t.Errorf("expected type %v, got %v", expected, out)
	}
	})
	}
	}

	type archTestModule struct {
	ModuleBase
	props struct {
	Deps []string
	}
	}

	func (m *archTestMultiTargetsModule) GenerateAndroidBuildActions(ctx ModuleContext) {
	}

	func (m *archTestMultiTargetsModule) DepsMutator(ctx BottomUpMutatorContext) {
	ctx.AddDependency(ctx.Module(), nil, m.props.Deps...)
	}

	func archTestMultiTargetsModuleFactory() Module {
	m := &archTestMultiTargetsModule{}
	m.AddProperties(&m.props)
	InitAndroidMultiTargetsArchModule(m, HostAndDeviceSupported, MultilibCommon)
	return m
	}

	type archTestMultiTargetsModule struct {
	ModuleBase
	props struct {
	Deps []string
	}
	}

	func (m *archTestModule) GenerateAndroidBuildActions(ctx ModuleContext) {
	}

	func (m *archTestModule) DepsMutator(ctx BottomUpMutatorContext) {
	ctx.AddDependency(ctx.Module(), nil, m.props.Deps...)
	}

	func archTestModuleFactory() Module {
	m := &archTestModule{}
	m.AddProperties(&m.props)
	InitAndroidArchModule(m, HostAndDeviceSupported, MultilibBoth)
	return m
	}

	var prepareForArchTest = GroupFixturePreparers(
	PrepareForTestWithArchMutator,
	FixtureRegisterWithContext(func(ctx RegistrationContext) {
	ctx.RegisterModuleType("module", archTestModuleFactory)
	ctx.RegisterModuleType("multi_targets_module", archTestMultiTargetsModuleFactory)
	}),
	)

	func TestArchMutator(t *testing.T) {
	var buildOSVariants []string
	var buildOS64Variants []string
	var buildOS32Variants []string
	var buildOSCommonVariant string

	switch runtime.GOOS {
	case "linux":
	buildOSVariants = []string{"linux_glibc_x86_64", "linux_glibc_x86"}
	buildOS64Variants = []string{"linux_glibc_x86_64"}
	buildOS32Variants = []string{"linux_glibc_x86"}
	buildOSCommonVariant = "linux_glibc_common"
	case "darwin":
	buildOSVariants = []string{"darwin_x86_64"}
	buildOS64Variants = []string{"darwin_x86_64"}
	buildOS32Variants = nil
	buildOSCommonVariant = "darwin_common"
	}

	bp := `
	module {
	name: "foo",
	}

	module {
	name: "bar",
	host_supported: true,
	}

	module {
	name: "baz",
	device_supported: false,
	}

	module {
	name: "qux",
	host_supported: true,
	compile_multilib: "32",
	}

	module {
	name: "first",
	host_supported: true,
	compile_multilib: "first",
	}

	multi_targets_module {
	name: "multi_targets",
	host_supported: true,
	}
	`

	testCases := []struct {
	name string
	preparer FixturePreparer
	fooVariants []string
	barVariants []string
	bazVariants []string
	quxVariants []string
	firstVariants []string

	multiTargetVariants []string
	multiTargetVariantsMap map[string][]string

	goOS string
	}{
	{
	name: "normal",
	preparer: nil,
	fooVariants: []string{"android_arm64_armv8-a", "android_arm_armv7-a-neon"},
	barVariants: append(buildOSVariants, "android_arm64_armv8-a", "android_arm_armv7-a-neon"),
	bazVariants: nil,
	quxVariants: append(buildOS32Variants, "android_arm_armv7-a-neon"),
	firstVariants: append(buildOS64Variants, "android_arm64_armv8-a"),
	multiTargetVariants: []string{buildOSCommonVariant, "android_common"},
	multiTargetVariantsMap: map[string][]string{
	buildOSCommonVariant: buildOS64Variants,
	"android_common": {"android_arm64_armv8-a"},
	}},
	{
	name: "host-only",
	preparer: FixtureModifyConfig(func(config Config) {
	config.BuildOSTarget = Target{}
	config.BuildOSCommonTarget = Target{}
	config.Targets[Android] = nil
	}),
	fooVariants: nil,
	barVariants: buildOSVariants,
	bazVariants: nil,
	quxVariants: buildOS32Variants,
	firstVariants: buildOS64Variants,
	multiTargetVariants: []string{buildOSCommonVariant},
	multiTargetVariantsMap: map[string][]string{
	buildOSCommonVariant: buildOS64Variants,
	},
	},
	{
	name: "same arch host and host cross",
	preparer: FixtureModifyConfig(func(config Config) {
	ModifyTestConfigForMusl(config)
	modifyTestConfigForMuslArm64HostCross(config)
	}),
	fooVariants: []string{"android_arm64_armv8-a", "android_arm_armv7-a-neon"},
	barVariants: []string{"linux_musl_x86_64", "linux_musl_arm64", "linux_musl_x86", "android_arm64_armv8-a", "android_arm_armv7-a-neon"},
	bazVariants: nil,
	quxVariants: []string{"linux_musl_x86", "android_arm_armv7-a-neon"},
	firstVariants: []string{"linux_musl_x86_64", "linux_musl_arm64", "android_arm64_armv8-a"},
	multiTargetVariants: []string{"linux_musl_common", "android_common"},
	multiTargetVariantsMap: map[string][]string{
	"linux_musl_common": {"linux_musl_x86_64"},
	"android_common": {"android_arm64_armv8-a"},
	},
	goOS: "linux",
	},
	}

	enabledVariants := func(ctx *TestContext, name string) []string {
	var ret []string
	variants := ctx.ModuleVariantsForTests(name)
	for _, variant := range variants {
	m := ctx.ModuleForTests(name, variant)
	if m.Module().Enabled() {
	ret = append(ret, variant)
	}
	}
	return ret
	}

	moduleMultiTargets := func(ctx *TestContext, name string, variant string) []string {
	var ret []string
	targets := ctx.ModuleForTests(name, variant).Module().MultiTargets()
	for _, t := range targets {
	ret = append(ret, t.String())
	}
	return ret
	}

	for _, tt := range testCases {
	t.Run(tt.name, func(t *testing.T) {
	if tt.goOS != runtime.GOOS {
	t.Skipf("requries runtime.GOOS %s", tt.goOS)
	}

	result := GroupFixturePreparers(
	prepareForArchTest,
	// Test specific preparer
	OptionalFixturePreparer(tt.preparer),
	FixtureWithRootAndroidBp(bp),
	).RunTest(t)
	ctx := result.TestContext

	if g, w := enabledVariants(ctx, "foo"), tt.fooVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want foo variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "bar"), tt.barVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want bar variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "baz"), tt.bazVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want baz variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "qux"), tt.quxVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want qux variants:\n%q\ngot:\n%q\n", w, g)
	}
	if g, w := enabledVariants(ctx, "first"), tt.firstVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want first variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "multi_targets"), tt.multiTargetVariants; !reflect.DeepEqual(w, g) {
	t.Fatalf("want multi_target variants:\n%q\ngot:\n%q\n", w, g)
	}

	for _, variant := range tt.multiTargetVariants {
	targets := moduleMultiTargets(ctx, "multi_targets", variant)
	if g, w := targets, tt.multiTargetVariantsMap[variant]; !reflect.DeepEqual(w, g) {
	t.Errorf("want ctx.MultiTarget() for %q:\n%q\ngot:\n%q\n", variant, w, g)
	}
	}
	})
	}
	}

	func TestArchMutatorNativeBridge(t *testing.T) {
	bp := `
	// This module is only enabled for x86.
	module {
	name: "foo",
	}

	// This module is enabled for x86 and arm (via native bridge).
	module {
	name: "bar",
	native_bridge_supported: true,
	}

	// This module is enabled for arm (native_bridge) only.
	module {
	name: "baz",
	native_bridge_supported: true,
	enabled: false,
	target: {
	native_bridge: {
	enabled: true,
	}
	}
	}
	`

	testCases := []struct {
	name string
	preparer FixturePreparer
	fooVariants []string
	barVariants []string
	bazVariants []string
	}{
	{
	name: "normal",
	preparer: nil,
	fooVariants: []string{"android_x86_64_silvermont", "android_x86_silvermont"},
	barVariants: []string{"android_x86_64_silvermont", "android_native_bridge_arm64_armv8-a", "android_x86_silvermont", "android_native_bridge_arm_armv7-a-neon"},
	bazVariants: []string{"android_native_bridge_arm64_armv8-a", "android_native_bridge_arm_armv7-a-neon"},
	},
	}

	enabledVariants := func(ctx *TestContext, name string) []string {
	var ret []string
	variants := ctx.ModuleVariantsForTests(name)
	for _, variant := range variants {
	m := ctx.ModuleForTests(name, variant)
	if m.Module().Enabled() {
	ret = append(ret, variant)
	}
	}
	return ret
	}

	for _, tt := range testCases {
	t.Run(tt.name, func(t *testing.T) {
	result := GroupFixturePreparers(
	prepareForArchTest,
	// Test specific preparer
	OptionalFixturePreparer(tt.preparer),
	// Prepare for native bridge test
	FixtureModifyConfig(func(config Config) {
	config.Targets[Android] = []Target{
	{Android, Arch{ArchType: X86_64, ArchVariant: "silvermont", Abi: []string{"arm64-v8a"}}, NativeBridgeDisabled, "", "", false},
	{Android, Arch{ArchType: X86, ArchVariant: "silvermont", Abi: []string{"armeabi-v7a"}}, NativeBridgeDisabled, "", "", false},
	{Android, Arch{ArchType: Arm64, ArchVariant: "armv8-a", Abi: []string{"arm64-v8a"}}, NativeBridgeEnabled, "x86_64", "arm64", false},
	{Android, Arch{ArchType: Arm, ArchVariant: "armv7-a-neon", Abi: []string{"armeabi-v7a"}}, NativeBridgeEnabled, "x86", "arm", false},
	}
	}),
	FixtureWithRootAndroidBp(bp),
	).RunTest(t)

	ctx := result.TestContext

	if g, w := enabledVariants(ctx, "foo"), tt.fooVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want foo variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "bar"), tt.barVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want bar variants:\n%q\ngot:\n%q\n", w, g)
	}

	if g, w := enabledVariants(ctx, "baz"), tt.bazVariants; !reflect.DeepEqual(w, g) {
	t.Errorf("want qux variants:\n%q\ngot:\n%q\n", w, g)
	}
	})
	}
	}

	type testArchPropertiesModule struct {
	ModuleBase
	properties struct {
	A []string `android:"arch_variant"`
	}
	}

	func (testArchPropertiesModule) GenerateAndroidBuildActions(ctx ModuleContext) {}

	// Module property "a" does not have "variant_prepend" tag.
	// Expected variant property orders are based on this fact.
	func TestArchProperties(t *testing.T) {
	bp := `
	module {
	name: "foo",
	a: ["root"],
	arch: {
	arm: {
	a: ["arm"],
	},
	arm64: {
	a: ["arm64"],
	},
	riscv64: { a: ["riscv64"] },
	x86: { a: ["x86"] },
	x86_64: { a: ["x86_64"] },
	},
	multilib: {
	lib32: { a: ["lib32"] },
	lib64: { a: ["lib64"] },
	},
	target: {
	bionic: { a: ["bionic"] },
	host: { a: ["host"] },
	android: { a: ["android"] },
	glibc: { a: ["glibc"] },
	musl: { a: ["musl"] },
	linux_bionic: { a: ["linux_bionic"] },
	linux: { a: ["linux"] },
	host_linux: { a: ["host_linux"] },
	linux_glibc: { a: ["linux_glibc"] },
	linux_musl: { a: ["linux_musl"] },
	windows: { a: ["windows"], enabled: true },
	darwin: { a: ["darwin"] },
	not_windows: { a: ["not_windows"] },
	android32: { a: ["android32"] },
	android64: { a: ["android64"] },
	android_arm: { a: ["android_arm"] },
	android_arm64: { a: ["android_arm64"] },
	linux_x86: { a: ["linux_x86"] },
	linux_x86_64: { a: ["linux_x86_64"] },
	linux_glibc_x86: { a: ["linux_glibc_x86"] },
	linux_glibc_x86_64: { a: ["linux_glibc_x86_64"] },
	linux_musl_x86: { a: ["linux_musl_x86"] },
	linux_musl_x86_64: { a: ["linux_musl_x86_64"] },
	darwin_x86_64: { a: ["darwin_x86_64"] },
	windows_x86: { a: ["windows_x86"] },
	windows_x86_64: { a: ["windows_x86_64"] },
	},
	}
	`

	type result struct {
	module string
	variant string
	property []string
	}

	testCases := []struct {
	name string
	goOS string
	preparer FixturePreparer
	results []result
	}{
	{
	name: "default",
	results: []result{
	{
	module: "foo",
	variant: "android_arm64_armv8-a",
	property: []string{"root", "linux", "bionic", "android", "android64", "arm64", "lib64", "android_arm64"},
	},
	{
	module: "foo",
	variant: "android_arm_armv7-a-neon",
	property: []string{"root", "linux", "bionic", "android", "android64", "arm", "lib32", "android_arm"},
	},
	},
	},
	{
	name: "linux",
	goOS: "linux",
	results: []result{
	{
	module: "foo",
	variant: "linux_glibc_x86_64",
	property: []string{"root", "host", "linux", "host_linux", "glibc", "linux_glibc", "not_windows", "x86_64", "lib64", "linux_x86_64", "linux_glibc_x86_64"},
	},
	{
	module: "foo",
	variant: "linux_glibc_x86",
	property: []string{"root", "host", "linux", "host_linux", "glibc", "linux_glibc", "not_windows", "x86", "lib32", "linux_x86", "linux_glibc_x86"},
	},
	},
	},
	{
	name: "windows",
	goOS: "linux",
	preparer: FixtureModifyConfig(func(config Config) {
	config.Targets[Windows] = []Target{
	{Windows, Arch{ArchType: X86_64}, NativeBridgeDisabled, "", "", true},
	{Windows, Arch{ArchType: X86}, NativeBridgeDisabled, "", "", true},
	}
	}),
	results: []result{
	{
	module: "foo",
	variant: "windows_x86_64",
	property: []string{"root", "host", "windows", "x86_64", "lib64", "windows_x86_64"},
	},
	{
	module: "foo",
	variant: "windows_x86",
	property: []string{"root", "host", "windows", "x86", "lib32", "windows_x86"},
	},
	},
	},
	{
	name: "linux_musl",
	goOS: "linux",
	preparer: FixtureModifyConfig(ModifyTestConfigForMusl),
	results: []result{
	{
	module: "foo",
	variant: "linux_musl_x86_64",
	property: []string{"root", "host", "linux", "host_linux", "musl", "linux_musl", "not_windows", "x86_64", "lib64", "linux_x86_64", "linux_musl_x86_64"},
	},
	{
	module: "foo",
	variant: "linux_musl_x86",
	property: []string{"root", "host", "linux", "host_linux", "musl", "linux_musl", "not_windows", "x86", "lib32", "linux_x86", "linux_musl_x86"},
	},
	},
	},
	{
	name: "darwin",
	goOS: "darwin",
	results: []result{
	{
	module: "foo",
	variant: "darwin_x86_64",
	property: []string{"root", "host", "darwin", "not_windows", "x86_64", "lib64", "darwin_x86_64"},
	},
	},
	},
	}

	for _, tt := range testCases {
	t.Run(tt.name, func(t *testing.T) {
	if tt.goOS != "" && tt.goOS != runtime.GOOS {
	t.Skipf("test requires runtime.GOOS==%s, got %s", tt.goOS, runtime.GOOS)
	}
	result := GroupFixturePreparers(
	PrepareForTestWithArchMutator,
	OptionalFixturePreparer(tt.preparer),
	FixtureRegisterWithContext(func(ctx RegistrationContext) {
	ctx.RegisterModuleType("module", func() Module {
	module := &testArchPropertiesModule{}
	module.AddProperties(&module.properties)
	InitAndroidArchModule(module, HostAndDeviceDefault, MultilibBoth)
	return module
	})
	}),
	).RunTestWithBp(t, bp)

	for _, want := range tt.results {
	t.Run(want.module+"_"+want.variant, func(t *testing.T) {
	got := result.ModuleForTests(want.module, want.variant).Module().(*testArchPropertiesModule).properties.A
	AssertArrayString(t, "arch mutator property", want.property, got)
	})
	}
	})
	}
	}