/*
Copyright 2017 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package strategy_test

import (
	. "github.com/onsi/ginkgo"

	"k8s.io/kubernetes/pkg/kubectl/apply/strategy"
)

var _ = Describe("Merging fields of type map with openapi", func() {
	Context("where a field has been deleted", func() {
		It("should delete the field when it is the only field in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - recorded/remote match
  paused: true
  # delete - recorded/remote differ
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - not present in recorded
  replicas: null
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})

		It("should delete the field when there are other fields in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - recorded/remote match
  paused: true
  # delete - recorded/remote differ
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - not present in recorded
  replicas: null
  # keep
  revisionHistoryLimit: 1
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
  revisionHistoryLimit: 1
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  revisionHistoryLimit: 1
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been added", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  paused: true
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # Add this - it is missing from recorded and remote
  replicas: 3
  # Add this - it is missing from remote but matches recorded
  paused: true
  # Add this - it is missing from remote and differs from recorded
  progressDeadlineSeconds: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been updated", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  paused: true
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # Missing from recorded
  replicas: 3
  # Matches the recorded
  paused: true
  # Differs from recorded
  progressDeadlineSeconds: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 2
  paused: false
  progressDeadlineSeconds: 3
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})

		It("should update the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 2
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 2
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  replicas: 3
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})
})

var _ = Describe("Merging fields of type map without openapi", func() {
	Context("where a field has been deleted", func() {
		It("should delete the field when it is the only field in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # delete - recorded/remote match
  paused: true
  # delete - recorded/remote differ
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # delete - not present in recorded
  replicas: null
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})

		It("should delete the field when there are other fields in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # delete - recorded/remote match
  paused: true
  # delete - recorded/remote differ
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # delete - not present in recorded
  replicas: null
  # keep
  revisionHistoryLimit: 1
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
  revisionHistoryLimit: 1
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  revisionHistoryLimit: 1
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been added", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  paused: true
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # Add this - it is missing from recorded and remote
  replicas: 3
  # Add this - it is missing from remote but matches recorded
  paused: true
  # Add this - it is missing from remote and differs from recorded
  progressDeadlineSeconds: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been updated", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  paused: true
  progressDeadlineSeconds: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  # Matches recorded
  replicas: 3
  # Matches the recorded
  paused: true
  # Differs from recorded
  progressDeadlineSeconds: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 2
  paused: false
  progressDeadlineSeconds: 3
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
  paused: true
  progressDeadlineSeconds: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})

		It("should update the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 2
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 2
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Foo
spec:
  replicas: 3
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})
})

var _ = Describe("Merging fields of type map with openapi", func() {
	Context("where a field has been deleted", func() {
		It("should delete the field when it is the only field in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - recorded/remote match
  foo: true
  # delete - recorded/remote differ
  bar: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - not present in recorded
  baz: null
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  baz: 3
  foo: true
  bar: 2
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})

		It("should delete the field when there are other fields in the map", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - recorded/remote match
  foo: true
  # delete - recorded/remote differ
  bar: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # delete - not present in recorded
  baz: null
  # keep
  biz: 1
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  bar: 3
  foo: true
  baz: 2
  biz: 1
`)

			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  biz: 1
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been added", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  foo: true
  biz: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # Add this - it is missing from recorded and remote
  baz: 3
  # Add this - it is missing from remote but matches recorded
  foo: true
  # Add this - it is missing from remote and differs from recorded
  biz: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  baz: 3
  foo: true
  biz: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})

	Context("where a field is has been updated", func() {
		It("should add the field", func() {
			recorded := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  foo: true
  baz: 1
`)
			local := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  # Missing from recorded
  bar: 3
  # Matches the recorded
  foo: true
  # Differs from recorded
  baz: 2
`)
			remote := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  bar: 2
  foo: false
  baz: 3
`)
			expected := create(`
apiVersion: apps/v1beta1
kind: Deployment
spec:
  bar: 3
  foo: true
  baz: 2
`)
			run(strategy.Create(strategy.Options{}), recorded, local, remote, expected)
		})
	})
})