|
| 1 | +/* |
| 2 | +Copyright 2019 The Kubernetes 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 fs |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + "io/ioutil" |
| 22 | + "os" |
| 23 | + |
| 24 | + "k8s.io/apimachinery/pkg/api/resource" |
| 25 | + "testing" |
| 26 | +) |
| 27 | + |
| 28 | +func TestDiskUsage(t *testing.T) { |
| 29 | + |
| 30 | + dir_1, err := ioutil.TempDir("", "dir_1") |
| 31 | + if err != nil { |
| 32 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 33 | + } |
| 34 | + defer os.RemoveAll(dir_1) |
| 35 | + |
| 36 | + tmpfile_1, err := ioutil.TempFile(dir_1, "test") |
| 37 | + if _, err = tmpfile_1.WriteString("just for testing"); err != nil { |
| 38 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 39 | + } |
| 40 | + dir_2, err := ioutil.TempDir(dir_1, "dir_2") |
| 41 | + if err != nil { |
| 42 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 43 | + } |
| 44 | + tmpfile_2, err := ioutil.TempFile(dir_2, "test") |
| 45 | + if _, err = tmpfile_2.WriteString("just for testing"); err != nil { |
| 46 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 47 | + } |
| 48 | + |
| 49 | + dirInfo1, err := os.Lstat(dir_1) |
| 50 | + if err != nil { |
| 51 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 52 | + } |
| 53 | + dirInfo2, err := os.Lstat(dir_2) |
| 54 | + if err != nil { |
| 55 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 56 | + } |
| 57 | + file1 := dir_1 + "/" + "test" |
| 58 | + file2 := dir_2 + "/" + "test" |
| 59 | + fileInfo1, err := os.Lstat(file1) |
| 60 | + if err != nil { |
| 61 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 62 | + } |
| 63 | + fileInfo2, err := os.Lstat(file2) |
| 64 | + if err != nil { |
| 65 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 66 | + } |
| 67 | + total := dirInfo1.Size() + dirInfo2.Size() + fileInfo1.Size() + fileInfo2.Size() |
| 68 | + |
| 69 | + size, err := DiskUsage(dir_1) |
| 70 | + if err != nil { |
| 71 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 72 | + } |
| 73 | + used, err := resource.ParseQuantity(fmt.Sprintf("%d", total)) |
| 74 | + if err != nil { |
| 75 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 76 | + } |
| 77 | + if size.Cmp(used) != 1 { |
| 78 | + t.Fatalf("TestDiskUsage failed: %s", err.Error()) |
| 79 | + } |
| 80 | + |
| 81 | +} |
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