1/* 2Copyright 2019 The Kubernetes Authors. 3 4Licensed under the Apache License, Version 2.0 (the "License"); 5you may not use this file except in compliance with the License. 6You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10Unless required by applicable law or agreed to in writing, software 11distributed under the License is distributed on an "AS IS" BASIS, 12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13See the License for the specific language governing permissions and 14limitations under the License. 15*/ 16 17package fs 18 19import ( 20 "fmt" 21 "io/ioutil" 22 "os" 23 24 "testing" 25 26 "k8s.io/apimachinery/pkg/api/resource" 27) 28 29func TestDiskUsage(t *testing.T) { 30 31 dir1, err := ioutil.TempDir("", "dir_1") 32 if err != nil { 33 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 34 } 35 defer os.RemoveAll(dir1) 36 37 tmpfile1, err := ioutil.TempFile(dir1, "test") 38 if _, err = tmpfile1.WriteString("just for testing"); err != nil { 39 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 40 } 41 dir2, err := ioutil.TempDir(dir1, "dir_2") 42 if err != nil { 43 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 44 } 45 tmpfile2, err := ioutil.TempFile(dir2, "test") 46 if _, err = tmpfile2.WriteString("just for testing"); err != nil { 47 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 48 } 49 50 dirInfo1, err := os.Lstat(dir1) 51 if err != nil { 52 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 53 } 54 dirInfo2, err := os.Lstat(dir2) 55 if err != nil { 56 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 57 } 58 file1 := tmpfile1.Name() 59 file2 := tmpfile2.Name() 60 fileInfo1, err := os.Lstat(file1) 61 if err != nil { 62 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 63 } 64 fileInfo2, err := os.Lstat(file2) 65 if err != nil { 66 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 67 } 68 total := dirInfo1.Size() + dirInfo2.Size() + fileInfo1.Size() + fileInfo2.Size() 69 70 usage, err := DiskUsage(dir1) 71 if err != nil { 72 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 73 } 74 size, err := resource.ParseQuantity(fmt.Sprintf("%d", usage.Bytes)) 75 if err != nil { 76 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 77 } 78 79 used, err := resource.ParseQuantity(fmt.Sprintf("%d", total)) 80 if err != nil { 81 t.Fatalf("TestDiskUsage failed: %s", err.Error()) 82 } 83 if size.Cmp(used) != 0 { 84 t.Fatalf("TestDiskUsage failed: expected 0, got %d", size.Cmp(used)) 85 } 86} 87 88func TestInfo(t *testing.T) { 89 dir1, err := ioutil.TempDir("", "dir_1") 90 if err != nil { 91 t.Fatalf("TestInfo failed: %s", err.Error()) 92 } 93 defer os.RemoveAll(dir1) 94 95 // should pass for folder path 96 availablebytes, capacity, usage, inodesTotal, inodesFree, inodeUsage, err := Info(dir1) 97 if err != nil { 98 t.Errorf("Info() should not error = %v", err) 99 return 100 } 101 validateInfo(t, availablebytes, capacity, usage, inodesTotal, inodeUsage, inodesFree) 102 103 // should pass for file 104 tmpfile1, err := ioutil.TempFile(dir1, "test") 105 if _, err = tmpfile1.WriteString("just for testing"); err != nil { 106 t.Fatalf("TestInfo failed: %s", err.Error()) 107 } 108 availablebytes, capacity, usage, inodesTotal, inodesFree, inodeUsage, err = Info(tmpfile1.Name()) 109 validateInfo(t, availablebytes, capacity, usage, inodesTotal, inodeUsage, inodesFree) 110} 111 112func validateInfo(t *testing.T, availablebytes int64, capacity int64, usage int64, inodesTotal int64, inodeUsage int64, inodesFree int64) { 113 // All of these should be greater than zero on a real system 114 if availablebytes <= 0 { 115 t.Errorf("Info() availablebytes should be greater than 0, got %v", availablebytes) 116 } 117 if capacity <= 0 { 118 t.Errorf("Info() capacity should be greater than 0, got %v", capacity) 119 } 120 if usage <= 0 { 121 t.Errorf("Info() got usage should be greater than 0, got %v", usage) 122 } 123 124 // inodes will always be zero for Windows 125 if inodesTotal != 0 { 126 t.Errorf("Info() inodesTotal = %v, want %v", inodeUsage, 0) 127 } 128 if inodesFree != 0 { 129 t.Errorf("Info() inodesFree = %v, want %v", inodesFree, 0) 130 } 131 if inodeUsage != 0 { 132 t.Errorf("Info() inodeUsage = %v, want %v", inodeUsage, 0) 133 } 134} 135