rust/clippy_test.go

// Copyright 2020 The Android Open Source Project
//
// 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 rust

import (
	"testing"

	"android/soong/android"
)

func TestClippy(t *testing.T) {

	bp := `
		// foo uses the default value of clippy_lints
		rust_library {
			name: "libfoo",
			srcs: ["foo.rs"],
			crate_name: "foo",
		}
		// bar forces the use of the "android" lint set
		rust_library {
			name: "libbar",
			srcs: ["foo.rs"],
			crate_name: "bar",
			clippy_lints: "android",
		}
		// foobar explicitly disable clippy
		rust_library {
			name: "libfoobar",
			srcs: ["foo.rs"],
			crate_name: "foobar",
			clippy_lints: "none",
		}`

	var clippyLintTests = []struct {
		modulePath string
		fooFlags   string
	}{
		{"", "${config.ClippyDefaultLints}"},
		{"external/", ""},
		{"hardware/", "${config.ClippyVendorLints}"},
	}

	for _, tc := range clippyLintTests {
		t.Run("path="+tc.modulePath, func(t *testing.T) {

			result := android.GroupFixturePreparers(
				prepareForRustTest,
				// Test with the blueprint file in different directories.
				android.FixtureAddTextFile(tc.modulePath+"Android.bp", bp),
			).RunTest(t)

			r := result.ModuleForTests("libfoo", "android_arm64_armv8-a_dylib").MaybeRule("clippy")
			android.AssertStringEquals(t, "libfoo flags", tc.fooFlags, r.Args["clippyFlags"])

			r = result.ModuleForTests("libbar", "android_arm64_armv8-a_dylib").MaybeRule("clippy")
			android.AssertStringEquals(t, "libbar flags", "${config.ClippyDefaultLints}", r.Args["clippyFlags"])

			r = result.ModuleForTests("libfoobar", "android_arm64_armv8-a_dylib").MaybeRule("clippy")
			if r.Rule != nil {
				t.Errorf("libfoobar is setup to use clippy when explicitly disabled: clippyFlags=%q", r.Args["clippyFlags"])
			}
		})
	}
}