func TestDockerGetExistingDockerImageIfPullFails(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
e := executor{client: &c}
e.setPolicyMode(common.DockerPullPolicyAlways)
c.On("InspectImage", "to-pull").
Return(&docker.Image{}, nil).
Once()
ac, _ := e.getAuthConfig("to-pull")
c.On("PullImage", docker.PullImageOptions{Repository: "to-pull:latest"}, ac).
Return(os.ErrNotExist).
Once()
image, err := e.getDockerImage("to-pull")
assert.NoError(t, err)
assert.NotNil(t, image, "Returns existing image")
c.On("InspectImage", "not-existing").
Return(nil, os.ErrNotExist).
Once()
c.On("PullImage", docker.PullImageOptions{Repository: "not-existing:latest"}, ac).
Return(os.ErrNotExist).
Once()
image, err = e.getDockerImage("not-existing")
assert.Error(t, err)
assert.Nil(t, image, "No existing image")
}
func TestDockerPolicyModeIfNotPresentForNotExistingImage(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
e := executor{client: &c}
e.setPolicyMode(common.DockerPullPolicyIfNotPresent)
c.On("InspectImage", "not-existing").
Return(nil, os.ErrNotExist).
Once()
ac, _ := e.getAuthConfig("not-existing")
c.On("PullImage", docker.PullImageOptions{Repository: "not-existing:latest"}, ac).
Return(nil).
Once()
c.On("InspectImage", "not-existing").
Return(&docker.Image{}, nil).
Once()
image, err := e.getDockerImage("not-existing")
assert.NoError(t, err)
assert.NotNil(t, image)
c.On("InspectImage", "not-existing").
Return(&docker.Image{}, nil).
Once()
// It shouldn't execute the pull for second time
image, err = e.getDockerImage("not-existing")
assert.NoError(t, err)
assert.NotNil(t, image)
}
func TestDockerPolicyModeIfNotPresentForExistingImage(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
e := executor{client: &c}
e.setPolicyMode(common.DockerPullPolicyIfNotPresent)
c.On("InspectImage", "existing").
Return(&docker.Image{}, nil).
Once()
image, err := e.getDockerImage("existing")
assert.NoError(t, err)
assert.NotNil(t, image)
}
func TestDockerGetImageById(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
c.On("InspectImage", "ID").
Return(&docker.Image{ID: "ID"}, nil).
Once()
// Use default policy
e := executor{client: &c}
e.setPolicyMode("")
image, err := e.getDockerImage("ID")
assert.NoError(t, err)
assert.NotNil(t, image)
assert.Equal(t, "ID", image.ID)
}
func TestDockerForExistingImage(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
e := executor{client: &c}
ac, _ := e.getAuthConfig("existing")
c.On("PullImage", docker.PullImageOptions{Repository: "existing:latest"}, ac).
Return(nil).
Once()
c.On("InspectImage", "existing").
Return(&docker.Image{}, nil).
Once()
image, err := e.pullDockerImage("existing")
assert.NoError(t, err)
assert.NotNil(t, image)
}
func TestDockerForNamedImage(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
e := executor{client: &c}
ac, _ := e.getAuthConfig("test")
c.On("PullImage", docker.PullImageOptions{Repository: "test:latest"}, ac).
Return(os.ErrNotExist).
Once()
c.On("PullImage", docker.PullImageOptions{Repository: "tagged:tag"}, ac).
Return(os.ErrNotExist).
Once()
c.On("PullImage", docker.PullImageOptions{Repository: "real@sha"}, ac).
Return(os.ErrNotExist).
Once()
image, err := e.pullDockerImage("test")
assert.Error(t, err)
assert.Nil(t, image)
image, err = e.pullDockerImage("tagged:tag")
assert.Error(t, err)
assert.Nil(t, image)
image, err = e.pullDockerImage("real@sha")
assert.Error(t, err)
assert.Nil(t, image)
}
func TestDockerPolicyModeNever(t *testing.T) {
var c mocks.Client
defer c.AssertExpectations(t)
c.On("InspectImage", "existing").
Return(&docker.Image{}, nil).
Once()
c.On("InspectImage", "not-existing").
Return(nil, os.ErrNotExist).
Once()
e := executor{client: &c}
e.setPolicyMode(common.DockerPullPolicyNever)
image, err := e.getDockerImage("existing")
assert.NoError(t, err)
assert.NotNil(t, image)
image, err = e.getDockerImage("not-existing")
assert.Error(t, err)
assert.Nil(t, image)
}