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// Copyright 2023 The Bazel Authors. 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.
/*
test.go is a unit test that asserts the Gazelle YAML manifest is up-to-date in
regards to the requirements.txt.
It re-hashes the requirements.txt and compares it to the recorded one in the
existing generated Gazelle manifest.
*/
package test
import (
"os"
"path/filepath"
"testing"
"github.com/bazelbuild/rules_python/gazelle/manifest"
)
func TestGazelleManifestIsUpdated(t *testing.T) {
requirementsPath := os.Getenv("_TEST_REQUIREMENTS")
if requirementsPath == "" {
t.Fatalf("_TEST_REQUIREMENTS must be set")
}
manifestPath := os.Getenv("_TEST_MANIFEST")
if manifestPath == "" {
t.Fatalf("_TEST_MANIFEST must be set")
}
manifestFile := new(manifest.File)
if err := manifestFile.Decode(manifestPath); err != nil {
t.Fatalf("decoding manifest file: %v", err)
}
if manifestFile.Integrity == "" {
t.Fatal("failed to find the Gazelle manifest file integrity")
}
manifestGeneratorHashPath := os.Getenv("_TEST_MANIFEST_GENERATOR_HASH")
manifestGeneratorHash, err := os.Open(manifestGeneratorHashPath)
if err != nil {
t.Fatalf("opening %q: %v", manifestGeneratorHashPath, err)
}
defer manifestGeneratorHash.Close()
requirements, err := os.Open(requirementsPath)
if err != nil {
t.Fatalf("opening %q: %v", requirementsPath, err)
}
defer requirements.Close()
valid, err := manifestFile.VerifyIntegrity(manifestGeneratorHash, requirements)
if err != nil {
t.Fatalf("verifying integrity: %v", err)
}
if !valid {
manifestRealpath, err := filepath.EvalSymlinks(manifestPath)
if err != nil {
t.Fatalf("evaluating symlink %q: %v", manifestPath, err)
}
t.Errorf(
"%q is out-of-date. Follow the update instructions in that file to resolve this",
manifestRealpath)
}
}
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