github.com/jdhenke/godel@v0.0.0-20161213181855-abeb3861bf0d/cmd/godel/install_test.go (about)

     1  // Copyright 2016 Palantir Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package godel
    16  
    17  import (
    18  	"io/ioutil"
    19  	"net/http"
    20  	"net/http/httptest"
    21  	"path"
    22  	"testing"
    23  
    24  	"github.com/nmiyake/archiver"
    25  	"github.com/nmiyake/pkg/dirs"
    26  	"github.com/pkg/errors"
    27  	"github.com/stretchr/testify/assert"
    28  	"github.com/stretchr/testify/require"
    29  )
    30  
    31  func TestDownload(t *testing.T) {
    32  	tmpDir, cleanup, err := dirs.TempDir("", "")
    33  	defer cleanup()
    34  	require.NoError(t, err)
    35  
    36  	tgzFile, err := ioutil.TempFile(tmpDir, "")
    37  	require.NoError(t, err)
    38  	err = tgzFile.Close()
    39  	require.NoError(t, err)
    40  	err = writeSimpleTestTgz(tgzFile.Name())
    41  	require.NoError(t, err)
    42  
    43  	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    44  		bytes, err := ioutil.ReadFile(tgzFile.Name())
    45  		require.NoError(t, err)
    46  		_, err = w.Write(bytes)
    47  		require.NoError(t, err)
    48  	}))
    49  	defer ts.Close()
    50  
    51  	fileName, err := getPkg(remotePkg{
    52  		Pkg: ts.URL,
    53  	}, tmpDir, ioutil.Discard)
    54  	require.NoError(t, err)
    55  
    56  	err = archiver.UntarGz(fileName, tmpDir)
    57  	require.NoError(t, err)
    58  
    59  	fileBytes, err := ioutil.ReadFile(path.Join(tmpDir, "test.txt"))
    60  	require.NoError(t, err)
    61  
    62  	assert.Equal(t, "Test file\n", string(fileBytes))
    63  }
    64  
    65  func writeSimpleTestTgz(filePath string) error {
    66  	tmpDir, cleanup, err := dirs.TempDir("", "")
    67  	defer cleanup()
    68  	if err != nil {
    69  		return errors.Wrapf(err, "failed to create temp directory")
    70  	}
    71  
    72  	testFilePath := path.Join(tmpDir, "test.txt")
    73  	err = ioutil.WriteFile(testFilePath, []byte("Test file\n"), 0644)
    74  	if err != nil {
    75  		return errors.Wrapf(err, "failed to write file %s", testFilePath)
    76  	}
    77  
    78  	err = archiver.TarGz(filePath, []string{testFilePath})
    79  	if err != nil {
    80  		return errors.Wrapf(err, "failed to compress tgz")
    81  	}
    82  
    83  	return nil
    84  }