clair/pkg/tarutil/tarutil_test.go

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2017-01-13 05:56:08 +00:00
// Copyright 2017 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 tarutil
import (
"bytes"
"os"
"path/filepath"
"runtime"
"testing"
"github.com/stretchr/testify/assert"
)
var testTarballs = []string{
"utils_test.tar",
"utils_test.tar.gz",
"utils_test.tar.bz2",
"utils_test.tar.xz",
}
func testfilepath(filename string) string {
_, path, _, _ := runtime.Caller(0)
testDataDir := "/testdata"
return filepath.Join(filepath.Dir(path), testDataDir, filename)
}
func TestExtract(t *testing.T) {
for _, filename := range testTarballs {
f, err := os.Open(testfilepath(filename))
assert.Nil(t, err)
defer f.Close()
data, err := ExtractFiles(f, []string{"test/"})
assert.Nil(t, err)
if c, n := data["test/test.txt"]; !n {
assert.Fail(t, "test/test.txt should have been extracted")
} else {
assert.NotEqual(t, 0, len(c) > 0, "test/test.txt file is empty")
}
if _, n := data["test.txt"]; n {
assert.Fail(t, "test.txt should not be extracted")
}
}
}
func TestExtractRegex(t *testing.T) {
for _, filename := range testTarballs {
f, err := os.Open(testfilepath(filename))
assert.Nil(t, err)
defer f.Close()
data, err := ExtractFiles(f, []string{`.+\.txt`})
assert.Nil(t, err)
if c, n := data["test/test.txt"]; !n {
assert.Fail(t, "test/test.txt should have been extracted")
} else {
assert.NotEqual(t, 0, len(c) > 0, "test/test.txt file is empty")
}
if _, n := data["test.txt"]; !n {
assert.Fail(t, "test.txt should also have been extracted")
}
}
}
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func TestExtractUncompressedData(t *testing.T) {
for _, filename := range testTarballs {
f, err := os.Open(testfilepath(filename))
assert.Nil(t, err)
defer f.Close()
_, err = ExtractFiles(bytes.NewReader([]byte("that string does not represent a tar or tar-gzip file")), []string{})
assert.Error(t, err, "Extracting uncompressed data should return an error")
}
}
func TestMaxExtractableFileSize(t *testing.T) {
for _, filename := range testTarballs {
f, err := os.Open(testfilepath(filename))
assert.Nil(t, err)
defer f.Close()
MaxExtractableFileSize = 50
_, err = ExtractFiles(f, []string{"test"})
assert.Equal(t, ErrExtractedFileTooBig, err)
}
}