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clair/ext/featurefmt/testutil.go

97 lines
2.7 KiB

// Copyright 2018 clair authors
//
// 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 featurefmt contains utility functions for featurefmt tests
package featurefmt
import (
"io/ioutil"
"path/filepath"
"runtime"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/coreos/clair/database"
"github.com/coreos/clair/pkg/tarutil"
)
// LoadFileForTest can be used in order to obtain the []byte contents of a file
// that is meant to be used for test data.
func LoadFileForTest(name string) []byte {
_, filename, _, _ := runtime.Caller(0)
path := filepath.Join(filepath.Dir(filename), name)
d, err := ioutil.ReadFile(path)
if err != nil {
panic(err)
}
return d
}
func loadTestFiles(testFilePaths map[string]string) tarutil.FilesMap {
m := tarutil.FilesMap{}
for tarPath, fsPath := range testFilePaths {
m[tarPath] = LoadFileForTest(fsPath)
}
return m
}
// TestCase is used by the RunTest function to execute.
type TestCase struct {
Name string
FilePaths map[string]string
ExpectedResult []database.LayerFeature
}
// RunTest runs a featurefmt test by loading the package info database files and
// the expected packages.
func RunTest(t *testing.T, test TestCase, lister Lister, expectedVersionFormat string) {
t.Run(test.Name, func(t *testing.T) {
filesMap := loadTestFiles(test.FilePaths)
expected := test.ExpectedResult
features, err := lister.ListFeatures(filesMap)
require.Nil(t, err)
visited := map[database.LayerFeature]bool{}
// we only enforce the unique packages to match, the result features
// should be always deduplicated.
for _, pkg := range expected {
visited[pkg] = false
}
assert.Len(t, features, len(visited))
for _, f := range features {
assert.Equal(t, expectedVersionFormat, f.VersionFormat)
if ok, found := visited[f]; ok {
assert.Fail(t, "duplicated features is not allowed", "feature=%#v", f)
} else if !found {
assert.Fail(t, "unexpected feature", "feature = %#v", f)
}
visited[f] = true
}
missingPackages := []database.LayerFeature{}
for pkg, ok := range visited {
if !ok {
missingPackages = append(missingPackages, pkg)
}
}
assert.Len(t, missingPackages, 0, "missing packages")
})
}