github.com/darkowlzz/helm@v2.5.1-0.20171213183701-6707fe0468d4+incompatible/cmd/helm/repo_index_test.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors All rights reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"bytes"
    21  	"io"
    22  	"io/ioutil"
    23  	"os"
    24  	"path/filepath"
    25  	"testing"
    26  
    27  	"k8s.io/helm/pkg/repo"
    28  )
    29  
    30  func TestRepoIndexCmd(t *testing.T) {
    31  
    32  	dir, err := ioutil.TempDir("", "helm-")
    33  	if err != nil {
    34  		t.Fatal(err)
    35  	}
    36  	defer os.RemoveAll(dir)
    37  
    38  	comp := filepath.Join(dir, "compressedchart-0.1.0.tgz")
    39  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.1.0.tgz", comp); err != nil {
    40  		t.Fatal(err)
    41  	}
    42  	comp2 := filepath.Join(dir, "compressedchart-0.2.0.tgz")
    43  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.2.0.tgz", comp2); err != nil {
    44  		t.Fatal(err)
    45  	}
    46  
    47  	buf := bytes.NewBuffer(nil)
    48  	c := newRepoIndexCmd(buf)
    49  
    50  	if err := c.RunE(c, []string{dir}); err != nil {
    51  		t.Error(err)
    52  	}
    53  
    54  	destIndex := filepath.Join(dir, "index.yaml")
    55  
    56  	index, err := repo.LoadIndexFile(destIndex)
    57  	if err != nil {
    58  		t.Fatal(err)
    59  	}
    60  
    61  	if len(index.Entries) != 1 {
    62  		t.Errorf("expected 1 entry, got %d: %#v", len(index.Entries), index.Entries)
    63  	}
    64  
    65  	vs := index.Entries["compressedchart"]
    66  	if len(vs) != 2 {
    67  		t.Errorf("expected 2 versions, got %d: %#v", len(vs), vs)
    68  	}
    69  
    70  	expectedVersion := "0.2.0"
    71  	if vs[0].Version != expectedVersion {
    72  		t.Errorf("expected %q, got %q", expectedVersion, vs[0].Version)
    73  	}
    74  
    75  	// Test with `--merge`
    76  
    77  	// Remove first two charts.
    78  	if err := os.Remove(comp); err != nil {
    79  		t.Fatal(err)
    80  	}
    81  	if err := os.Remove(comp2); err != nil {
    82  		t.Fatal(err)
    83  	}
    84  	// Add a new chart and a new version of an existing chart
    85  	if err := linkOrCopy("testdata/testcharts/reqtest-0.1.0.tgz", filepath.Join(dir, "reqtest-0.1.0.tgz")); err != nil {
    86  		t.Fatal(err)
    87  	}
    88  	if err := linkOrCopy("testdata/testcharts/compressedchart-0.3.0.tgz", filepath.Join(dir, "compressedchart-0.3.0.tgz")); err != nil {
    89  		t.Fatal(err)
    90  	}
    91  
    92  	c.ParseFlags([]string{"--merge", destIndex})
    93  	if err := c.RunE(c, []string{dir}); err != nil {
    94  		t.Error(err)
    95  	}
    96  
    97  	index, err = repo.LoadIndexFile(destIndex)
    98  	if err != nil {
    99  		t.Fatal(err)
   100  	}
   101  
   102  	if len(index.Entries) != 2 {
   103  		t.Errorf("expected 2 entries, got %d: %#v", len(index.Entries), index.Entries)
   104  	}
   105  
   106  	vs = index.Entries["compressedchart"]
   107  	if len(vs) != 3 {
   108  		t.Errorf("expected 3 versions, got %d: %#v", len(vs), vs)
   109  	}
   110  
   111  	expectedVersion = "0.3.0"
   112  	if vs[0].Version != expectedVersion {
   113  		t.Errorf("expected %q, got %q", expectedVersion, vs[0].Version)
   114  	}
   115  }
   116  
   117  func linkOrCopy(old, new string) error {
   118  	if err := os.Link(old, new); err != nil {
   119  		return copyFile(old, new)
   120  	}
   121  
   122  	return nil
   123  }
   124  
   125  func copyFile(dst, src string) error {
   126  	i, err := os.Open(dst)
   127  	if err != nil {
   128  		return err
   129  	}
   130  	defer i.Close()
   131  
   132  	o, err := os.Create(src)
   133  	if err != nil {
   134  		return err
   135  	}
   136  	defer o.Close()
   137  
   138  	_, err = io.Copy(o, i)
   139  
   140  	return err
   141  }