github.com/stefanmcshane/helm@v0.0.0-20221213002717-88a4a2c6e77d/pkg/chartutil/expand_test.go (about)

     1  /*
     2  Copyright The Helm Authors.
     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 chartutil
    18  
    19  import (
    20  	"os"
    21  	"path/filepath"
    22  	"testing"
    23  )
    24  
    25  func TestExpand(t *testing.T) {
    26  	dest := t.TempDir()
    27  
    28  	reader, err := os.Open("testdata/frobnitz-1.2.3.tgz")
    29  	if err != nil {
    30  		t.Fatal(err)
    31  	}
    32  
    33  	if err := Expand(dest, reader); err != nil {
    34  		t.Fatal(err)
    35  	}
    36  
    37  	expectedChartPath := filepath.Join(dest, "frobnitz")
    38  	fi, err := os.Stat(expectedChartPath)
    39  	if err != nil {
    40  		t.Fatal(err)
    41  	}
    42  	if !fi.IsDir() {
    43  		t.Fatalf("expected a chart directory at %s", expectedChartPath)
    44  	}
    45  
    46  	dir, err := os.Open(expectedChartPath)
    47  	if err != nil {
    48  		t.Fatal(err)
    49  	}
    50  
    51  	fis, err := dir.Readdir(0)
    52  	if err != nil {
    53  		t.Fatal(err)
    54  	}
    55  
    56  	expectLen := 11
    57  	if len(fis) != expectLen {
    58  		t.Errorf("Expected %d files, but got %d", expectLen, len(fis))
    59  	}
    60  
    61  	for _, fi := range fis {
    62  		expect, err := os.Stat(filepath.Join("testdata", "frobnitz", fi.Name()))
    63  		if err != nil {
    64  			t.Fatal(err)
    65  		}
    66  		// os.Stat can return different values for directories, based on the OS
    67  		// for Linux, for example, os.Stat alwaty returns the size of the directory
    68  		// (value-4096) regardless of the size of the contents of the directory
    69  		mode := expect.Mode()
    70  		if !mode.IsDir() {
    71  			if fi.Size() != expect.Size() {
    72  				t.Errorf("Expected %s to have size %d, got %d", fi.Name(), expect.Size(), fi.Size())
    73  			}
    74  		}
    75  	}
    76  }
    77  
    78  func TestExpandFile(t *testing.T) {
    79  	dest := t.TempDir()
    80  
    81  	if err := ExpandFile(dest, "testdata/frobnitz-1.2.3.tgz"); err != nil {
    82  		t.Fatal(err)
    83  	}
    84  
    85  	expectedChartPath := filepath.Join(dest, "frobnitz")
    86  	fi, err := os.Stat(expectedChartPath)
    87  	if err != nil {
    88  		t.Fatal(err)
    89  	}
    90  	if !fi.IsDir() {
    91  		t.Fatalf("expected a chart directory at %s", expectedChartPath)
    92  	}
    93  
    94  	dir, err := os.Open(expectedChartPath)
    95  	if err != nil {
    96  		t.Fatal(err)
    97  	}
    98  
    99  	fis, err := dir.Readdir(0)
   100  	if err != nil {
   101  		t.Fatal(err)
   102  	}
   103  
   104  	expectLen := 11
   105  	if len(fis) != expectLen {
   106  		t.Errorf("Expected %d files, but got %d", expectLen, len(fis))
   107  	}
   108  
   109  	for _, fi := range fis {
   110  		expect, err := os.Stat(filepath.Join("testdata", "frobnitz", fi.Name()))
   111  		if err != nil {
   112  			t.Fatal(err)
   113  		}
   114  		// os.Stat can return different values for directories, based on the OS
   115  		// for Linux, for example, os.Stat alwaty returns the size of the directory
   116  		// (value-4096) regardless of the size of the contents of the directory
   117  		mode := expect.Mode()
   118  		if !mode.IsDir() {
   119  			if fi.Size() != expect.Size() {
   120  				t.Errorf("Expected %s to have size %d, got %d", fi.Name(), expect.Size(), fi.Size())
   121  			}
   122  		}
   123  	}
   124  }