platform_build_soong/cc/cc_test.go
Colin Cross b671544973 Move first/last unique elements utility functions to android package
Move firstUniqueElements to android.FirstUniqueStrings,
lastUniqueElements to android.LastUniqueStrings, and lastUniquePaths
to android.LastUniquePaths.

Test: m checkbuild
Change-Id: Ieac840405126c7f8f98afb4a4ef35c01a18fe7fb
2017-10-24 12:12:32 -07:00

591 lines
14 KiB
Go

package cc
import (
"android/soong/android"
"fmt"
"io/ioutil"
"os"
"reflect"
"sort"
"strings"
"testing"
"github.com/google/blueprint/proptools"
)
var buildDir string
func setUp() {
var err error
buildDir, err = ioutil.TempDir("", "soong_cc_test")
if err != nil {
panic(err)
}
}
func tearDown() {
os.RemoveAll(buildDir)
}
func TestMain(m *testing.M) {
run := func() int {
setUp()
defer tearDown()
return m.Run()
}
os.Exit(run())
}
func testCc(t *testing.T, bp string) *android.TestContext {
config := android.TestArchConfig(buildDir, nil)
config.ProductVariables.DeviceVndkVersion = proptools.StringPtr("current")
ctx := android.NewTestArchContext()
ctx.RegisterModuleType("cc_library", android.ModuleFactoryAdaptor(libraryFactory))
ctx.RegisterModuleType("toolchain_library", android.ModuleFactoryAdaptor(toolchainLibraryFactory))
ctx.RegisterModuleType("llndk_library", android.ModuleFactoryAdaptor(llndkLibraryFactory))
ctx.RegisterModuleType("cc_object", android.ModuleFactoryAdaptor(objectFactory))
ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
ctx.BottomUp("image", vendorMutator).Parallel()
ctx.BottomUp("link", linkageMutator).Parallel()
ctx.BottomUp("vndk", vndkMutator).Parallel()
})
ctx.Register()
// add some modules that are required by the compiler and/or linker
bp = bp + `
toolchain_library {
name: "libatomic",
vendor_available: true,
}
toolchain_library {
name: "libcompiler_rt-extras",
vendor_available: true,
}
toolchain_library {
name: "libgcc",
vendor_available: true,
}
cc_library {
name: "libc",
no_libgcc : true,
nocrt : true,
system_shared_libs: [],
}
llndk_library {
name: "libc",
symbol_file: "",
}
cc_library {
name: "libm",
no_libgcc : true,
nocrt : true,
system_shared_libs: [],
}
llndk_library {
name: "libm",
symbol_file: "",
}
cc_library {
name: "libdl",
no_libgcc : true,
nocrt : true,
system_shared_libs: [],
}
llndk_library {
name: "libdl",
symbol_file: "",
}
cc_object {
name: "crtbegin_so",
}
cc_object {
name: "crtend_so",
}
`
ctx.MockFileSystem(map[string][]byte{
"Android.bp": []byte(bp),
"foo.c": nil,
"bar.c": nil,
})
_, errs := ctx.ParseBlueprintsFiles("Android.bp")
failIfErrored(t, errs)
_, errs = ctx.PrepareBuildActions(config)
failIfErrored(t, errs)
return ctx
}
func TestVendorSrc(t *testing.T) {
ctx := testCc(t, `
cc_library {
name: "libTest",
srcs: ["foo.c"],
no_libgcc : true,
nocrt : true,
system_shared_libs : [],
vendor_available: true,
target: {
vendor: {
srcs: ["bar.c"],
},
},
}
`)
ld := ctx.ModuleForTests("libTest", "android_arm_armv7-a-neon_vendor_shared").Rule("ld")
var objs []string
for _, o := range ld.Inputs {
objs = append(objs, o.Base())
}
if len(objs) != 2 {
t.Errorf("inputs of libTest is expected to 2, but was %d.", len(objs))
}
if objs[0] != "foo.o" || objs[1] != "bar.o" {
t.Errorf("inputs of libTest must be []string{\"foo.o\", \"bar.o\"}, but was %#v.", objs)
}
}
var (
str11 = "01234567891"
str10 = str11[:10]
str9 = str11[:9]
str5 = str11[:5]
str4 = str11[:4]
)
var splitListForSizeTestCases = []struct {
in []string
out [][]string
size int
}{
{
in: []string{str10},
out: [][]string{{str10}},
size: 10,
},
{
in: []string{str9},
out: [][]string{{str9}},
size: 10,
},
{
in: []string{str5},
out: [][]string{{str5}},
size: 10,
},
{
in: []string{str11},
out: nil,
size: 10,
},
{
in: []string{str10, str10},
out: [][]string{{str10}, {str10}},
size: 10,
},
{
in: []string{str9, str10},
out: [][]string{{str9}, {str10}},
size: 10,
},
{
in: []string{str10, str9},
out: [][]string{{str10}, {str9}},
size: 10,
},
{
in: []string{str5, str4},
out: [][]string{{str5, str4}},
size: 10,
},
{
in: []string{str5, str4, str5},
out: [][]string{{str5, str4}, {str5}},
size: 10,
},
{
in: []string{str5, str4, str5, str4},
out: [][]string{{str5, str4}, {str5, str4}},
size: 10,
},
{
in: []string{str5, str4, str5, str5},
out: [][]string{{str5, str4}, {str5}, {str5}},
size: 10,
},
{
in: []string{str5, str5, str5, str4},
out: [][]string{{str5}, {str5}, {str5, str4}},
size: 10,
},
{
in: []string{str9, str11},
out: nil,
size: 10,
},
{
in: []string{str11, str9},
out: nil,
size: 10,
},
}
func TestSplitListForSize(t *testing.T) {
for _, testCase := range splitListForSizeTestCases {
out, _ := splitListForSize(android.PathsForTesting(testCase.in), testCase.size)
var outStrings [][]string
if len(out) > 0 {
outStrings = make([][]string, len(out))
for i, o := range out {
outStrings[i] = o.Strings()
}
}
if !reflect.DeepEqual(outStrings, testCase.out) {
t.Errorf("incorrect output:")
t.Errorf(" input: %#v", testCase.in)
t.Errorf(" size: %d", testCase.size)
t.Errorf(" expected: %#v", testCase.out)
t.Errorf(" got: %#v", outStrings)
}
}
}
var staticLinkDepOrderTestCases = []struct {
// This is a string representation of a map[moduleName][]moduleDependency .
// It models the dependencies declared in an Android.bp file.
in string
// allOrdered is a string representation of a map[moduleName][]moduleDependency .
// The keys of allOrdered specify which modules we would like to check.
// The values of allOrdered specify the expected result (of the transitive closure of all
// dependencies) for each module to test
allOrdered string
// outOrdered is a string representation of a map[moduleName][]moduleDependency .
// The keys of outOrdered specify which modules we would like to check.
// The values of outOrdered specify the expected result (of the ordered linker command line)
// for each module to test.
outOrdered string
}{
// Simple tests
{
in: "",
outOrdered: "",
},
{
in: "a:",
outOrdered: "a:",
},
{
in: "a:b; b:",
outOrdered: "a:b; b:",
},
// Tests of reordering
{
// diamond example
in: "a:d,b,c; b:d; c:d; d:",
outOrdered: "a:b,c,d; b:d; c:d; d:",
},
{
// somewhat real example
in: "bsdiff_unittest:b,c,d,e,f,g,h,i; e:b",
outOrdered: "bsdiff_unittest:c,d,e,b,f,g,h,i; e:b",
},
{
// multiple reorderings
in: "a:b,c,d,e; d:b; e:c",
outOrdered: "a:d,b,e,c; d:b; e:c",
},
{
// should reorder without adding new transitive dependencies
in: "bin:lib2,lib1; lib1:lib2,liboptional",
allOrdered: "bin:lib1,lib2,liboptional; lib1:lib2,liboptional",
outOrdered: "bin:lib1,lib2; lib1:lib2,liboptional",
},
{
// multiple levels of dependencies
in: "a:b,c,d,e,f,g,h; f:b,c,d; b:c,d; c:d",
allOrdered: "a:e,f,b,c,d,g,h; f:b,c,d; b:c,d; c:d",
outOrdered: "a:e,f,b,c,d,g,h; f:b,c,d; b:c,d; c:d",
},
// tiebreakers for when two modules specifying different orderings and there is no dependency
// to dictate an order
{
// if the tie is between two modules at the end of a's deps, then a's order wins
in: "a1:b,c,d,e; a2:b,c,e,d; b:d,e; c:e,d",
outOrdered: "a1:b,c,d,e; a2:b,c,e,d; b:d,e; c:e,d",
},
{
// if the tie is between two modules at the start of a's deps, then c's order is used
in: "a1:d,e,b1,c1; b1:d,e; c1:e,d; a2:d,e,b2,c2; b2:d,e; c2:d,e",
outOrdered: "a1:b1,c1,e,d; b1:d,e; c1:e,d; a2:b2,c2,d,e; b2:d,e; c2:d,e",
},
// Tests involving duplicate dependencies
{
// simple duplicate
in: "a:b,c,c,b",
outOrdered: "a:c,b",
},
{
// duplicates with reordering
in: "a:b,c,d,c; c:b",
outOrdered: "a:d,c,b",
},
// Tests to confirm the nonexistence of infinite loops.
// These cases should never happen, so as long as the test terminates and the
// result is deterministic then that should be fine.
{
in: "a:a",
outOrdered: "a:a",
},
{
in: "a:b; b:c; c:a",
allOrdered: "a:b,c; b:c,a; c:a,b",
outOrdered: "a:b; b:c; c:a",
},
{
in: "a:b,c; b:c,a; c:a,b",
allOrdered: "a:c,a,b; b:a,b,c; c:b,c,a",
outOrdered: "a:c,b; b:a,c; c:b,a",
},
}
// converts from a string like "a:b,c; d:e" to (["a","b"], {"a":["b","c"], "d":["e"]}, [{"a", "a.o"}, {"b", "b.o"}])
func parseModuleDeps(text string) (modulesInOrder []android.Path, allDeps map[android.Path][]android.Path) {
// convert from "a:b,c; d:e" to "a:b,c;d:e"
strippedText := strings.Replace(text, " ", "", -1)
if len(strippedText) < 1 {
return []android.Path{}, make(map[android.Path][]android.Path, 0)
}
allDeps = make(map[android.Path][]android.Path, 0)
// convert from "a:b,c;d:e" to ["a:b,c", "d:e"]
moduleTexts := strings.Split(strippedText, ";")
outputForModuleName := func(moduleName string) android.Path {
return android.PathForTesting(moduleName)
}
for _, moduleText := range moduleTexts {
// convert from "a:b,c" to ["a", "b,c"]
components := strings.Split(moduleText, ":")
if len(components) != 2 {
panic(fmt.Sprintf("illegal module dep string %q from larger string %q; must contain one ':', not %v", moduleText, text, len(components)-1))
}
moduleName := components[0]
moduleOutput := outputForModuleName(moduleName)
modulesInOrder = append(modulesInOrder, moduleOutput)
depString := components[1]
// convert from "b,c" to ["b", "c"]
depNames := strings.Split(depString, ",")
if len(depString) < 1 {
depNames = []string{}
}
var deps []android.Path
for _, depName := range depNames {
deps = append(deps, outputForModuleName(depName))
}
allDeps[moduleOutput] = deps
}
return modulesInOrder, allDeps
}
func TestStaticLinkDependencyOrdering(t *testing.T) {
for _, testCase := range staticLinkDepOrderTestCases {
errs := []string{}
// parse testcase
_, givenTransitiveDeps := parseModuleDeps(testCase.in)
expectedModuleNames, expectedTransitiveDeps := parseModuleDeps(testCase.outOrdered)
if testCase.allOrdered == "" {
// allow the test case to skip specifying allOrdered
testCase.allOrdered = testCase.outOrdered
}
_, expectedAllDeps := parseModuleDeps(testCase.allOrdered)
// For each module whose post-reordered dependencies were specified, validate that
// reordering the inputs produces the expected outputs.
for _, moduleName := range expectedModuleNames {
moduleDeps := givenTransitiveDeps[moduleName]
orderedAllDeps, orderedDeclaredDeps := orderDeps(moduleDeps, givenTransitiveDeps)
correctAllOrdered := expectedAllDeps[moduleName]
if !reflect.DeepEqual(orderedAllDeps, correctAllOrdered) {
errs = append(errs, fmt.Sprintf("orderDeps returned incorrect orderedAllDeps."+
"\nInput: %q"+
"\nmodule: %v"+
"\nexpected: %s"+
"\nactual: %s",
testCase.in, moduleName, correctAllOrdered, orderedAllDeps))
}
correctOutputDeps := expectedTransitiveDeps[moduleName]
if !reflect.DeepEqual(correctOutputDeps, orderedDeclaredDeps) {
errs = append(errs, fmt.Sprintf("orderDeps returned incorrect orderedDeclaredDeps."+
"\nInput: %q"+
"\nmodule: %v"+
"\nexpected: %s"+
"\nactual: %s",
testCase.in, moduleName, correctOutputDeps, orderedDeclaredDeps))
}
}
if len(errs) > 0 {
sort.Strings(errs)
for _, err := range errs {
t.Error(err)
}
}
}
}
func failIfErrored(t *testing.T, errs []error) {
if len(errs) > 0 {
for _, err := range errs {
t.Error(err)
}
t.FailNow()
}
}
func getOutputPaths(ctx *android.TestContext, variant string, moduleNames []string) (paths android.Paths) {
for _, moduleName := range moduleNames {
module := ctx.ModuleForTests(moduleName, variant).Module().(*Module)
output := module.outputFile.Path()
paths = append(paths, output)
}
return paths
}
func TestLibDeps(t *testing.T) {
ctx := testCc(t, `
cc_library {
name: "a",
static_libs: ["b", "c", "d"],
}
cc_library {
name: "b",
}
cc_library {
name: "c",
static_libs: ["b"],
}
cc_library {
name: "d",
}
`)
variant := "android_arm64_armv8-a_core_static"
moduleA := ctx.ModuleForTests("a", variant).Module().(*Module)
actual := moduleA.staticDepsInLinkOrder
expected := getOutputPaths(ctx, variant, []string{"c", "b", "d"})
if !reflect.DeepEqual(actual, expected) {
t.Errorf("staticDeps orderings were not propagated correctly"+
"\nactual: %v"+
"\nexpected: %v",
actual,
expected,
)
}
}
var compilerFlagsTestCases = []struct {
in string
out bool
}{
{
in: "a",
out: false,
},
{
in: "-a",
out: true,
},
{
in: "-Ipath/to/something",
out: false,
},
{
in: "-isystempath/to/something",
out: false,
},
{
in: "--coverage",
out: false,
},
{
in: "-include a/b",
out: true,
},
{
in: "-include a/b c/d",
out: false,
},
{
in: "-DMACRO",
out: true,
},
{
in: "-DMAC RO",
out: false,
},
{
in: "-a -b",
out: false,
},
{
in: "-DMACRO=definition",
out: true,
},
{
in: "-DMACRO=defi nition",
out: true, // TODO(jiyong): this should be false
},
{
in: "-DMACRO(x)=x + 1",
out: true,
},
{
in: "-DMACRO=\"defi nition\"",
out: true,
},
}
type mockContext struct {
BaseModuleContext
result bool
}
func (ctx *mockContext) PropertyErrorf(property, format string, args ...interface{}) {
// CheckBadCompilerFlags calls this function when the flag should be rejected
ctx.result = false
}
func TestCompilerFlags(t *testing.T) {
for _, testCase := range compilerFlagsTestCases {
ctx := &mockContext{result: true}
CheckBadCompilerFlags(ctx, "", []string{testCase.in})
if ctx.result != testCase.out {
t.Errorf("incorrect output:")
t.Errorf(" input: %#v", testCase.in)
t.Errorf(" expected: %#v", testCase.out)
t.Errorf(" got: %#v", ctx.result)
}
}
}