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298 lines
7.9 KiB
298 lines
7.9 KiB
// Copyright 2020 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rust
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import (
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"encoding/json"
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"io/ioutil"
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"path/filepath"
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"sort"
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"strings"
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"testing"
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"android/soong/android"
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)
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// testProjectJson run the generation of rust-project.json. It returns the raw
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// content of the generated file.
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func testProjectJson(t *testing.T, bp string) []byte {
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result := android.GroupFixturePreparers(
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prepareForRustTest,
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android.FixtureMergeEnv(map[string]string{"SOONG_GEN_RUST_PROJECT": "1"}),
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).RunTestWithBp(t, bp)
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// The JSON file is generated via WriteFileToOutputDir. Therefore, it
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// won't appear in the Output of the TestingSingleton. Manually verify
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// it exists.
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content, err := ioutil.ReadFile(filepath.Join(result.Config.BuildDir(), rustProjectJsonFileName))
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if err != nil {
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t.Errorf("rust-project.json has not been generated")
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}
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return content
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}
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// validateJsonCrates validates that content follows the basic structure of
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// rust-project.json. It returns the crates attribute if the validation
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// succeeded.
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// It uses an empty interface instead of relying on a defined structure to
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// avoid a strong dependency on our implementation.
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func validateJsonCrates(t *testing.T, rawContent []byte) []interface{} {
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var content interface{}
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err := json.Unmarshal(rawContent, &content)
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if err != nil {
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t.Errorf("Unable to parse the rust-project.json as JSON: %v", err)
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}
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root, ok := content.(map[string]interface{})
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if !ok {
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t.Errorf("Unexpected JSON format: %v", content)
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}
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if _, ok = root["crates"]; !ok {
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t.Errorf("No crates attribute in rust-project.json: %v", root)
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}
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crates, ok := root["crates"].([]interface{})
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if !ok {
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t.Errorf("Unexpected crates format: %v", root["crates"])
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}
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return crates
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}
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// validateCrate ensures that a crate can be parsed as a map.
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func validateCrate(t *testing.T, crate interface{}) map[string]interface{} {
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c, ok := crate.(map[string]interface{})
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if !ok {
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t.Fatalf("Unexpected type for crate: %v", c)
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}
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return c
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}
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// validateDependencies parses the dependencies for a crate. It returns a list
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// of the dependencies name.
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func validateDependencies(t *testing.T, crate map[string]interface{}) []string {
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var dependencies []string
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deps, ok := crate["deps"].([]interface{})
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if !ok {
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t.Errorf("Unexpected format for deps: %v", crate["deps"])
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}
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for _, dep := range deps {
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d, ok := dep.(map[string]interface{})
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if !ok {
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t.Errorf("Unexpected format for dependency: %v", dep)
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}
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name, ok := d["name"].(string)
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if !ok {
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t.Errorf("Dependency is missing the name key: %v", d)
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}
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dependencies = append(dependencies, name)
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}
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return dependencies
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}
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func TestProjectJsonDep(t *testing.T) {
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bp := `
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rust_library {
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name: "liba",
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srcs: ["a/src/lib.rs"],
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crate_name: "a"
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}
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rust_library {
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name: "libb",
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srcs: ["b/src/lib.rs"],
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crate_name: "b",
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rlibs: ["liba"],
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}
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`
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jsonContent := testProjectJson(t, bp)
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validateJsonCrates(t, jsonContent)
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}
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func TestProjectJsonFeature(t *testing.T) {
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bp := `
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rust_library {
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name: "liba",
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srcs: ["a/src/lib.rs"],
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crate_name: "a",
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features: ["f1", "f2"]
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}
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`
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jsonContent := testProjectJson(t, bp)
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crates := validateJsonCrates(t, jsonContent)
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for _, c := range crates {
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crate := validateCrate(t, c)
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cfgs, ok := crate["cfg"].([]interface{})
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if !ok {
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t.Fatalf("Unexpected type for cfgs: %v", crate)
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}
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expectedCfgs := []string{"feature=\"f1\"", "feature=\"f2\""}
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foundCfgs := []string{}
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for _, cfg := range cfgs {
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cfg, ok := cfg.(string)
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if !ok {
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t.Fatalf("Unexpected type for cfg: %v", cfg)
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}
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foundCfgs = append(foundCfgs, cfg)
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}
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sort.Strings(foundCfgs)
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for i, foundCfg := range foundCfgs {
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if foundCfg != expectedCfgs[i] {
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t.Errorf("Incorrect features: got %v; want %v", foundCfg, expectedCfgs[i])
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}
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}
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}
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}
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func TestProjectJsonBinary(t *testing.T) {
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bp := `
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rust_binary {
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name: "libz",
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srcs: ["z/src/lib.rs"],
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crate_name: "z"
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}
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`
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jsonContent := testProjectJson(t, bp)
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crates := validateJsonCrates(t, jsonContent)
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for _, c := range crates {
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crate := validateCrate(t, c)
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rootModule, ok := crate["root_module"].(string)
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if !ok {
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t.Fatalf("Unexpected type for root_module: %v", crate["root_module"])
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}
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if rootModule == "z/src/lib.rs" {
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return
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}
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}
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t.Errorf("Entry for binary %q not found: %s", "a", jsonContent)
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}
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func TestProjectJsonBindGen(t *testing.T) {
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bp := `
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rust_library {
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name: "libd",
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srcs: ["d/src/lib.rs"],
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rlibs: ["libbindings1"],
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crate_name: "d"
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}
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rust_bindgen {
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name: "libbindings1",
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crate_name: "bindings1",
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source_stem: "bindings1",
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host_supported: true,
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wrapper_src: "src/any.h",
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}
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rust_library_host {
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name: "libe",
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srcs: ["e/src/lib.rs"],
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rustlibs: ["libbindings2"],
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crate_name: "e"
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}
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rust_bindgen_host {
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name: "libbindings2",
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crate_name: "bindings2",
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source_stem: "bindings2",
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wrapper_src: "src/any.h",
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}
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`
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jsonContent := testProjectJson(t, bp)
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crates := validateJsonCrates(t, jsonContent)
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for _, c := range crates {
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crate := validateCrate(t, c)
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rootModule, ok := crate["root_module"].(string)
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if !ok {
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t.Fatalf("Unexpected type for root_module: %v", crate["root_module"])
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}
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if strings.Contains(rootModule, "libbindings1") && !strings.Contains(rootModule, "android_arm64") {
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t.Errorf("The source path for libbindings1 does not contain android_arm64, got %v", rootModule)
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}
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if strings.Contains(rootModule, "libbindings2") && !strings.Contains(rootModule, android.BuildOs.String()) {
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t.Errorf("The source path for libbindings2 does not contain the BuildOs, got %v; want %v",
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rootModule, android.BuildOs.String())
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}
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// Check that libbindings1 does not depend on itself.
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if strings.Contains(rootModule, "libbindings1") {
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for _, depName := range validateDependencies(t, crate) {
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if depName == "bindings1" {
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t.Errorf("libbindings1 depends on itself")
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}
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}
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}
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if strings.Contains(rootModule, "d/src/lib.rs") {
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// Check that libd depends on libbindings1
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found := false
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for _, depName := range validateDependencies(t, crate) {
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if depName == "bindings1" {
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found = true
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break
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}
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}
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if !found {
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t.Errorf("libd does not depend on libbindings1: %v", crate)
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}
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// Check that OUT_DIR is populated.
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env, ok := crate["env"].(map[string]interface{})
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if !ok {
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t.Errorf("libd does not have its environment variables set: %v", crate)
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}
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if _, ok = env["OUT_DIR"]; !ok {
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t.Errorf("libd does not have its OUT_DIR set: %v", env)
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}
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}
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}
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}
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func TestProjectJsonMultiVersion(t *testing.T) {
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bp := `
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rust_library {
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name: "liba1",
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srcs: ["a1/src/lib.rs"],
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crate_name: "a"
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}
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rust_library {
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name: "liba2",
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srcs: ["a2/src/lib.rs"],
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crate_name: "a",
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}
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rust_library {
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name: "libb",
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srcs: ["b/src/lib.rs"],
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crate_name: "b",
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rustlibs: ["liba1", "liba2"],
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}
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`
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jsonContent := testProjectJson(t, bp)
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crates := validateJsonCrates(t, jsonContent)
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for _, c := range crates {
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crate := validateCrate(t, c)
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rootModule, ok := crate["root_module"].(string)
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if !ok {
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t.Fatalf("Unexpected type for root_module: %v", crate["root_module"])
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}
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// Make sure that b has 2 different dependencies.
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if rootModule == "b/src/lib.rs" {
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aCount := 0
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deps := validateDependencies(t, crate)
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for _, depName := range deps {
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if depName == "a" {
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aCount++
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}
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}
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if aCount != 2 {
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t.Errorf("Unexpected number of liba dependencies want %v, got %v: %v", 2, aCount, deps)
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}
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return
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}
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}
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t.Errorf("libb crate has not been found: %v", crates)
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}
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