Replace godep with dep

vendor/k8s.io/kubernetes/pkg/util/hash/hash_test.go

@@ -0,0 +1,147 @@
+/*
+Copyright 2015 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 hash
+
+import (
+	"fmt"
+	"hash/adler32"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+type A struct {
+	x int
+	y string
+}
+
+type B struct {
+	x []int
+	y map[string]bool
+}
+
+type C struct {
+	x int
+	y string
+}
+
+func (c C) String() string {
+	return fmt.Sprintf("%d:%s", c.x, c.y)
+}
+
+func TestDeepHashObject(t *testing.T) {
+	successCases := []func() interface{}{
+		func() interface{} { return 8675309 },
+		func() interface{} { return "Jenny, I got your number" },
+		func() interface{} { return []string{"eight", "six", "seven"} },
+		func() interface{} { return [...]int{5, 3, 0, 9} },
+		func() interface{} { return map[int]string{8: "8", 6: "6", 7: "7"} },
+		func() interface{} { return map[string]int{"5": 5, "3": 3, "0": 0, "9": 9} },
+		func() interface{} { return A{867, "5309"} },
+		func() interface{} { return &A{867, "5309"} },
+		func() interface{} {
+			return B{[]int{8, 6, 7}, map[string]bool{"5": true, "3": true, "0": true, "9": true}}
+		},
+		func() interface{} { return map[A]bool{{8675309, "Jenny"}: true, {9765683, "!Jenny"}: false} },
+		func() interface{} { return map[C]bool{{8675309, "Jenny"}: true, {9765683, "!Jenny"}: false} },
+		func() interface{} { return map[*A]bool{{8675309, "Jenny"}: true, {9765683, "!Jenny"}: false} },
+		func() interface{} { return map[*C]bool{{8675309, "Jenny"}: true, {9765683, "!Jenny"}: false} },
+	}
+
+	for _, tc := range successCases {
+		hasher1 := adler32.New()
+		DeepHashObject(hasher1, tc())
+		hash1 := hasher1.Sum32()
+		DeepHashObject(hasher1, tc())
+		hash2 := hasher1.Sum32()
+		if hash1 != hash2 {
+			t.Fatalf("hash of the same object (%q) produced different results: %d vs %d", toString(tc()), hash1, hash2)
+		}
+		for i := 0; i < 100; i++ {
+			hasher2 := adler32.New()
+
+			DeepHashObject(hasher1, tc())
+			hash1a := hasher1.Sum32()
+			DeepHashObject(hasher2, tc())
+			hash2a := hasher2.Sum32()
+
+			if hash1a != hash1 {
+				t.Errorf("repeated hash of the same object (%q) produced different results: %d vs %d", toString(tc()), hash1, hash1a)
+			}
+			if hash2a != hash2 {
+				t.Errorf("repeated hash of the same object (%q) produced different results: %d vs %d", toString(tc()), hash2, hash2a)
+			}
+			if hash1a != hash2a {
+				t.Errorf("hash of the same object produced (%q) different results: %d vs %d", toString(tc()), hash1a, hash2a)
+			}
+		}
+	}
+}
+
+func toString(obj interface{}) string {
+	return spew.Sprintf("%#v", obj)
+}
+
+type wheel struct {
+	radius uint32
+}
+
+type unicycle struct {
+	primaryWheel   *wheel
+	licencePlateID string
+	tags           map[string]string
+}
+
+func TestDeepObjectPointer(t *testing.T) {
+	// Arrange
+	wheel1 := wheel{radius: 17}
+	wheel2 := wheel{radius: 22}
+	wheel3 := wheel{radius: 17}
+
+	myUni1 := unicycle{licencePlateID: "blah", primaryWheel: &wheel1, tags: map[string]string{"color": "blue", "name": "john"}}
+	myUni2 := unicycle{licencePlateID: "blah", primaryWheel: &wheel2, tags: map[string]string{"color": "blue", "name": "john"}}
+	myUni3 := unicycle{licencePlateID: "blah", primaryWheel: &wheel3, tags: map[string]string{"color": "blue", "name": "john"}}
+
+	// Run it more than once to verify determinism of hasher.
+	for i := 0; i < 100; i++ {
+		hasher1 := adler32.New()
+		hasher2 := adler32.New()
+		hasher3 := adler32.New()
+		// Act
+		DeepHashObject(hasher1, myUni1)
+		hash1 := hasher1.Sum32()
+		DeepHashObject(hasher1, myUni1)
+		hash1a := hasher1.Sum32()
+		DeepHashObject(hasher2, myUni2)
+		hash2 := hasher2.Sum32()
+		DeepHashObject(hasher3, myUni3)
+		hash3 := hasher3.Sum32()
+
+		// Assert
+		if hash1 != hash1a {
+			t.Errorf("repeated hash of the same object produced different results: %d vs %d", hash1, hash1a)
+		}
+
+		if hash1 == hash2 {
+			t.Errorf("hash1 (%d) and hash2(%d) must be different because they have different values for wheel size", hash1, hash2)
+		}
+
+		if hash1 != hash3 {
+			t.Errorf("hash1 (%d) and hash3(%d) must be the same because although they point to different objects, they have the same values for wheel size", hash1, hash3)
+		}
+	}
+}