func (s *configFilesSuite) TestRenderManaged(c *gc.C) {
info := network.InterfaceInfo{
InterfaceName: "ethX",
VLANTag: 42,
}
cf := networker.NewConfigFile("ethX", "/some/path", info, nil)
data := cf.RenderManaged()
expectedVLAN := `
# Managed by Juju, please don't change.
auto ethX.42
iface ethX.42 inet dhcp
vlan-raw-device ethX
`[1:]
c.Assert(string(data), jc.DeepEquals, expectedVLAN)
expectedNormal := `
# Managed by Juju, please don't change.
auto ethX
iface ethX inet dhcp
`[1:]
info.VLANTag = 0
cf = networker.NewConfigFile("ethX", "/some/path", info, nil)
data = cf.RenderManaged()
c.Assert(string(data), jc.DeepEquals, expectedNormal)
}
func (s *configFilesSuite) TestApply(c *gc.C) {
data := []byte("some\ndata\nhere")
testFile := filepath.Join(c.MkDir(), "test")
defer os.Remove(testFile)
cf := networker.NewConfigFile("ethX", testFile, network.InterfaceInfo{}, data)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
c.Assert(string(cf.Data()), jc.DeepEquals, string(data))
newData := []byte("new\ndata")
c.Assert(cf.UpdateData(newData), jc.IsTrue)
c.Assert(cf.NeedsUpdating(), jc.IsTrue)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
err := cf.Apply()
c.Assert(err, jc.ErrorIsNil)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
readData, err := ioutil.ReadFile(testFile)
c.Assert(err, jc.ErrorIsNil)
c.Assert(string(readData), jc.DeepEquals, string(newData))
cf.MarkForRemoval()
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
c.Assert(cf.IsPendingRemoval(), jc.IsTrue)
err = cf.Apply()
c.Assert(err, jc.ErrorIsNil)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
_, err = os.Stat(testFile)
c.Assert(err, jc.Satisfies, os.IsNotExist)
}
func (s *configFilesSuite) TestMarkForRemoval(c *gc.C) {
cf := networker.NewConfigFile("ethX", "", network.InterfaceInfo{}, nil)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
cf.MarkForRemoval()
c.Assert(cf.IsPendingRemoval(), jc.IsTrue)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
}
func (s *configFilesSuite) TestIsManaged(c *gc.C) {
info := network.InterfaceInfo{
InterfaceName: "ethX",
}
cf := networker.NewConfigFile("ethX", "", info, nil)
c.Assert(cf.IsManaged(), jc.IsFalse) // always false when no data
c.Assert(cf.UpdateData([]byte("blah")), jc.IsTrue)
c.Assert(cf.IsManaged(), jc.IsFalse) // false if header is missing
c.Assert(cf.UpdateData(cf.RenderManaged()), jc.IsTrue)
c.Assert(cf.IsManaged(), jc.IsTrue)
}
func (s *configFilesSuite) TestReadData(c *gc.C) {
data := []byte("some\ndata\nhere")
testFile := filepath.Join(c.MkDir(), "test")
defer os.Remove(testFile)
err := ioutil.WriteFile(testFile, data, 0644)
c.Assert(err, jc.ErrorIsNil)
cf := networker.NewConfigFile("ethX", testFile, network.InterfaceInfo{}, nil)
err = cf.ReadData()
c.Assert(err, jc.ErrorIsNil)
c.Assert(string(cf.Data()), jc.DeepEquals, string(data))
c.Assert(cf.NeedsUpdating(), jc.IsTrue)
}
func (s *configFilesSuite) TestSimpleGetters(c *gc.C) {
info := network.InterfaceInfo{
InterfaceName: "blah",
}
data := []byte("some data")
cf := networker.NewConfigFile("ethX", "/some/path", info, data)
c.Assert(cf.InterfaceName(), gc.Equals, "ethX")
c.Assert(cf.FileName(), gc.Equals, "/some/path")
c.Assert(cf.InterfaceInfo(), jc.DeepEquals, info)
c.Assert(cf.Data(), jc.DeepEquals, data)
c.Assert(cf.NeedsUpdating(), jc.IsFalse)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
c.Assert(cf.IsManaged(), jc.IsFalse)
}
func (s *configFilesSuite) TestUpdateData(c *gc.C) {
cf := networker.NewConfigFile("ethX", "", network.InterfaceInfo{}, nil)
assertData := func(expectData []byte, expectNeedsUpdating bool) {
c.Assert(string(cf.Data()), jc.DeepEquals, string(expectData))
c.Assert(cf.NeedsUpdating(), gc.Equals, expectNeedsUpdating)
c.Assert(cf.IsPendingRemoval(), jc.IsFalse)
}
assertData(nil, false)
result := cf.UpdateData(nil)
c.Assert(result, jc.IsFalse)
assertData(nil, false)
newData := []byte("new data")
result = cf.UpdateData(newData)
c.Assert(result, jc.IsTrue)
assertData(newData, true)
newData = []byte("newer data")
result = cf.UpdateData(newData)
c.Assert(result, jc.IsTrue)
assertData(newData, true)
}