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pkg/networkfs/etchosts: tests for Update method 

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
This commit is contained in:
Erik Hollensbe 2014-08-25 22:23:56 -07:00
parent 925a3254e7
commit 9f09ef18a4
1 changed files with 34 additions and 0 deletions
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34
pkg/networkfs/etchosts/etchosts_test.go
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@ -72,3 +72,37 @@ func TestBuildNoIP(t *testing.T) {
t.Fatalf("Expected to find '%s' got '%s'", expected, content)
}
}
func TestUpdate(t *testing.T) {
file, err := ioutil.TempFile("", "")
if err != nil {
t.Fatal(err)
}
defer os.Remove(file.Name())
if err := Build(file.Name(), "10.11.12.13", "testhostname", "testdomainname", nil); err != nil {
t.Fatal(err)
}
content, err := ioutil.ReadFile(file.Name())
if err != nil {
t.Fatal(err)
}
if expected := "10.11.12.13\ttesthostname.testdomainname testhostname\n"; !bytes.Contains(content, []byte(expected)) {
t.Fatalf("Expected to find '%s' got '%s'", expected, content)
}
if err := Update(file.Name(), "1.1.1.1", "testhostname"); err != nil {
t.Fatal(err)
}
content, err = ioutil.ReadFile(file.Name())
if err != nil {
t.Fatal(err)
}
if expected := "1.1.1.1\ttesthostname.testdomainname testhostname\n"; !bytes.Contains(content, []byte(expected)) {
t.Fatalf("Expected to find '%s' got '%s'", expected, content)
}
}