platform_build_soong/bp2build/java_binary_host_conversion_test.go
Lukacs T. Berki bc5f731791 Multithread symlink forest removal.
This is a second attempt at aosp/2273288 which got rolled back because
it turned out that:

1. We make ~120K symlinks in AOSP (!), all of which need to be deleted
2. System calls are sometimes slow
3. Golang spawns a new OS-level thread for each blocking system calls to
   keep cores busy

All this together means that we sometimes had 10K system calls in
flight, which meant 10K OS-level threads, which is when Go gives up and
says "I created too many threads, please help".

The fix is to move the system calls into a pool of goroutines, which
soon end up on a pool of threads (since they mostly do blocking system
calls)

Test: Presubmits.
Change-Id: Ia9aefff3b0ed373f09bb6c8b2ec1d8b0f00b213b
2022-10-31 16:04:13 +00:00

136 lines
4.1 KiB
Go

// Copyright 2021 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 bp2build
import (
"testing"
"android/soong/android"
"android/soong/cc"
"android/soong/java"
)
func runJavaBinaryHostTestCase(t *testing.T, tc Bp2buildTestCase) {
t.Helper()
(&tc).ModuleTypeUnderTest = "java_binary_host"
(&tc).ModuleTypeUnderTestFactory = java.BinaryHostFactory
RunBp2BuildTestCase(t, func(ctx android.RegistrationContext) {
ctx.RegisterModuleType("cc_library_host_shared", cc.LibraryHostSharedFactory)
ctx.RegisterModuleType("java_library", java.LibraryFactory)
ctx.RegisterModuleType("java_import_host", java.ImportFactory)
}, tc)
}
var testFs = map[string]string{
"test.mf": "Main-Class: com.android.test.MainClass",
"other/Android.bp": `cc_library_host_shared {
name: "jni-lib-1",
stl: "none",
}`,
}
func TestJavaBinaryHost(t *testing.T) {
runJavaBinaryHostTestCase(t, Bp2buildTestCase{
Description: "java_binary_host with srcs, exclude_srcs, jni_libs, javacflags, and manifest.",
Filesystem: testFs,
Blueprint: `java_binary_host {
name: "java-binary-host-1",
srcs: ["a.java", "b.java"],
exclude_srcs: ["b.java"],
manifest: "test.mf",
jni_libs: ["jni-lib-1"],
javacflags: ["-Xdoclint:all/protected"],
bazel_module: { bp2build_available: true },
java_version: "8",
}`,
ExpectedBazelTargets: []string{
MakeBazelTarget("java_binary", "java-binary-host-1", AttrNameToString{
"srcs": `["a.java"]`,
"main_class": `"com.android.test.MainClass"`,
"deps": `["//other:jni-lib-1"]`,
"jvm_flags": `["-Djava.library.path=$${RUNPATH}other"]`,
"javacopts": `[
"-Xdoclint:all/protected",
"-source 1.8 -target 1.8",
]`,
"target_compatible_with": `select({
"//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
"//conditions:default": [],
})`,
}),
},
})
}
func TestJavaBinaryHostRuntimeDeps(t *testing.T) {
runJavaBinaryHostTestCase(t, Bp2buildTestCase{
Description: "java_binary_host with srcs, exclude_srcs, jni_libs, javacflags, and manifest.",
Filesystem: testFs,
Blueprint: `java_binary_host {
name: "java-binary-host-1",
static_libs: ["java-dep-1"],
manifest: "test.mf",
bazel_module: { bp2build_available: true },
}
java_library {
name: "java-dep-1",
srcs: ["a.java"],
bazel_module: { bp2build_available: false },
}
`,
ExpectedBazelTargets: []string{
MakeBazelTarget("java_binary", "java-binary-host-1", AttrNameToString{
"main_class": `"com.android.test.MainClass"`,
"runtime_deps": `[":java-dep-1"]`,
"target_compatible_with": `select({
"//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
"//conditions:default": [],
})`,
}),
},
})
}
func TestJavaBinaryHostLibs(t *testing.T) {
runJavaBinaryHostTestCase(t, Bp2buildTestCase{
Description: "java_binary_host with srcs, libs.",
Filesystem: testFs,
Blueprint: `java_binary_host {
name: "java-binary-host-libs",
libs: ["java-lib-dep-1"],
manifest: "test.mf",
srcs: ["a.java"],
}
java_import_host{
name: "java-lib-dep-1",
jars: ["foo.jar"],
bazel_module: { bp2build_available: false },
}
`,
ExpectedBazelTargets: []string{
MakeBazelTarget("java_binary", "java-binary-host-libs", AttrNameToString{
"main_class": `"com.android.test.MainClass"`,
"srcs": `["a.java"]`,
"deps": `[":java-lib-dep-1-neverlink"]`,
"target_compatible_with": `select({
"//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
"//conditions:default": [],
})`,
}),
},
})
}