1package system
2
3import (
4	"io/ioutil"
5	"os"
6	"path/filepath"
7	"testing"
8	"time"
9)
10
11// prepareTempFile creates a temporary file in a temporary directory.
12func prepareTempFile(t *testing.T) (string, string) {
13	dir, err := ioutil.TempDir("", "docker-system-test")
14	if err != nil {
15		t.Fatal(err)
16	}
17
18	file := filepath.Join(dir, "exist")
19	if err := ioutil.WriteFile(file, []byte("hello"), 0644); err != nil {
20		t.Fatal(err)
21	}
22	return file, dir
23}
24
25// TestChtimes tests Chtimes on a tempfile. Test only mTime, because aTime is OS dependent
26func TestChtimes(t *testing.T) {
27	file, dir := prepareTempFile(t)
28	defer os.RemoveAll(dir)
29
30	beforeUnixEpochTime := time.Unix(0, 0).Add(-100 * time.Second)
31	unixEpochTime := time.Unix(0, 0)
32	afterUnixEpochTime := time.Unix(100, 0)
33	unixMaxTime := maxTime
34
35	// Test both aTime and mTime set to Unix Epoch
36	Chtimes(file, unixEpochTime, unixEpochTime)
37
38	f, err := os.Stat(file)
39	if err != nil {
40		t.Fatal(err)
41	}
42
43	if f.ModTime() != unixEpochTime {
44		t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
45	}
46
47	// Test aTime before Unix Epoch and mTime set to Unix Epoch
48	Chtimes(file, beforeUnixEpochTime, unixEpochTime)
49
50	f, err = os.Stat(file)
51	if err != nil {
52		t.Fatal(err)
53	}
54
55	if f.ModTime() != unixEpochTime {
56		t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
57	}
58
59	// Test aTime set to Unix Epoch and mTime before Unix Epoch
60	Chtimes(file, unixEpochTime, beforeUnixEpochTime)
61
62	f, err = os.Stat(file)
63	if err != nil {
64		t.Fatal(err)
65	}
66
67	if f.ModTime() != unixEpochTime {
68		t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
69	}
70
71	// Test both aTime and mTime set to after Unix Epoch (valid time)
72	Chtimes(file, afterUnixEpochTime, afterUnixEpochTime)
73
74	f, err = os.Stat(file)
75	if err != nil {
76		t.Fatal(err)
77	}
78
79	if f.ModTime() != afterUnixEpochTime {
80		t.Fatalf("Expected: %s, got: %s", afterUnixEpochTime, f.ModTime())
81	}
82
83	// Test both aTime and mTime set to Unix max time
84	Chtimes(file, unixMaxTime, unixMaxTime)
85
86	f, err = os.Stat(file)
87	if err != nil {
88		t.Fatal(err)
89	}
90
91	if f.ModTime().Truncate(time.Second) != unixMaxTime.Truncate(time.Second) {
92		t.Fatalf("Expected: %s, got: %s", unixMaxTime.Truncate(time.Second), f.ModTime().Truncate(time.Second))
93	}
94}
95