Vendor: Updated dependencies

* Updated go.mod
 * Updated go.sum
 * Updated vendor packages

Signed-off-by: Glenn Vriesman <glenn.vriesman@gmail.com>

vendor/github.com/stretchr/testify/assert/assertions.go

@@ -18,6 +18,7 @@ import (
 
 	"github.com/davecgh/go-spew/spew"
 	"github.com/pmezard/go-difflib/difflib"
+	yaml "gopkg.in/yaml.v2"
 )
 
 //go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_format.go.tmpl
@@ -39,7 +40,7 @@ type ValueAssertionFunc func(TestingT, interface{}, ...interface{}) bool
 // for table driven tests.
 type BoolAssertionFunc func(TestingT, bool, ...interface{}) bool
 
-// ValuesAssertionFunc is a common function prototype when validating an error value.  Can be useful
+// ErrorAssertionFunc is a common function prototype when validating an error value.  Can be useful
 // for table driven tests.
 type ErrorAssertionFunc func(TestingT, error, ...interface{}) bool
 
@@ -179,7 +180,11 @@ func messageFromMsgAndArgs(msgAndArgs ...interface{}) string {
 		return ""
 	}
 	if len(msgAndArgs) == 1 {
-		return msgAndArgs[0].(string)
+		msg := msgAndArgs[0]
+		if msgAsStr, ok := msg.(string); ok {
+			return msgAsStr
+		}
+		return fmt.Sprintf("%+v", msg)
 	}
 	if len(msgAndArgs) > 1 {
 		return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
@@ -346,6 +351,37 @@ func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{})
 
 }
 
+// Same asserts that two pointers reference the same object.
+//
+//    assert.Same(t, ptr1, ptr2)
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func Same(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+
+	expectedPtr, actualPtr := reflect.ValueOf(expected), reflect.ValueOf(actual)
+	if expectedPtr.Kind() != reflect.Ptr || actualPtr.Kind() != reflect.Ptr {
+		return Fail(t, "Invalid operation: both arguments must be pointers", msgAndArgs...)
+	}
+
+	expectedType, actualType := reflect.TypeOf(expected), reflect.TypeOf(actual)
+	if expectedType != actualType {
+		return Fail(t, fmt.Sprintf("Pointer expected to be of type %v, but was %v",
+			expectedType, actualType), msgAndArgs...)
+	}
+
+	if expected != actual {
+		return Fail(t, fmt.Sprintf("Not same: \n"+
+			"expected: %p %#v\n"+
+			"actual  : %p %#v", expected, expected, actual, actual), msgAndArgs...)
+	}
+
+	return true
+}
+
 // formatUnequalValues takes two values of arbitrary types and returns string
 // representations appropriate to be presented to the user.
 //
@@ -415,6 +451,17 @@ func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
 	return Fail(t, "Expected value not to be nil.", msgAndArgs...)
 }
 
+// containsKind checks if a specified kind in the slice of kinds.
+func containsKind(kinds []reflect.Kind, kind reflect.Kind) bool {
+	for i := 0; i < len(kinds); i++ {
+		if kind == kinds[i] {
+			return true
+		}
+	}
+
+	return false
+}
+
 // isNil checks if a specified object is nil or not, without Failing.
 func isNil(object interface{}) bool {
 	if object == nil {
@@ -423,7 +470,14 @@ func isNil(object interface{}) bool {
 
 	value := reflect.ValueOf(object)
 	kind := value.Kind()
-	if kind >= reflect.Chan && kind <= reflect.Slice && value.IsNil() {
+	isNilableKind := containsKind(
+		[]reflect.Kind{
+			reflect.Chan, reflect.Func,
+			reflect.Interface, reflect.Map,
+			reflect.Ptr, reflect.Slice},
+		kind)
+
+	if isNilableKind && value.IsNil() {
 		return true
 	}
 
@@ -457,14 +511,14 @@ func isEmpty(object interface{}) bool {
 	// collection types are empty when they have no element
 	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
 		return objValue.Len() == 0
-	// pointers are empty if nil or if the value they point to is empty
+		// pointers are empty if nil or if the value they point to is empty
 	case reflect.Ptr:
 		if objValue.IsNil() {
 			return true
 		}
 		deref := objValue.Elem().Interface()
 		return isEmpty(deref)
-	// for all other types, compare against the zero value
+		// for all other types, compare against the zero value
 	default:
 		zero := reflect.Zero(objValue.Type())
 		return reflect.DeepEqual(object, zero.Interface())
@@ -607,7 +661,7 @@ func NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{
 func includeElement(list interface{}, element interface{}) (ok, found bool) {
 
 	listValue := reflect.ValueOf(list)
-	elementValue := reflect.ValueOf(element)
+	listKind := reflect.TypeOf(list).Kind()
 	defer func() {
 		if e := recover(); e != nil {
 			ok = false
@@ -615,11 +669,12 @@ func includeElement(list interface{}, element interface{}) (ok, found bool) {
 		}
 	}()
 
-	if reflect.TypeOf(list).Kind() == reflect.String {
+	if listKind == reflect.String {
+		elementValue := reflect.ValueOf(element)
 		return true, strings.Contains(listValue.String(), elementValue.String())
 	}
 
-	if reflect.TypeOf(list).Kind() == reflect.Map {
+	if listKind == reflect.Map {
 		mapKeys := listValue.MapKeys()
 		for i := 0; i < len(mapKeys); i++ {
 			if ObjectsAreEqual(mapKeys[i].Interface(), element) {
@@ -1315,6 +1370,24 @@ func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{
 	return Equal(t, expectedJSONAsInterface, actualJSONAsInterface, msgAndArgs...)
 }
 
+// YAMLEq asserts that two YAML strings are equivalent.
+func YAMLEq(t TestingT, expected string, actual string, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+	var expectedYAMLAsInterface, actualYAMLAsInterface interface{}
+
+	if err := yaml.Unmarshal([]byte(expected), &expectedYAMLAsInterface); err != nil {
+		return Fail(t, fmt.Sprintf("Expected value ('%s') is not valid yaml.\nYAML parsing error: '%s'", expected, err.Error()), msgAndArgs...)
+	}
+
+	if err := yaml.Unmarshal([]byte(actual), &actualYAMLAsInterface); err != nil {
+		return Fail(t, fmt.Sprintf("Input ('%s') needs to be valid yaml.\nYAML error: '%s'", actual, err.Error()), msgAndArgs...)
+	}
+
+	return Equal(t, expectedYAMLAsInterface, actualYAMLAsInterface, msgAndArgs...)
+}
+
 func typeAndKind(v interface{}) (reflect.Type, reflect.Kind) {
 	t := reflect.TypeOf(v)
 	k := t.Kind()
@@ -1327,7 +1400,7 @@ func typeAndKind(v interface{}) (reflect.Type, reflect.Kind) {
 }
 
 // diff returns a diff of both values as long as both are of the same type and
-// are a struct, map, slice or array. Otherwise it returns an empty string.
+// are a struct, map, slice, array or string. Otherwise it returns an empty string.
 func diff(expected interface{}, actual interface{}) string {
 	if expected == nil || actual == nil {
 		return ""
@@ -1345,12 +1418,12 @@ func diff(expected interface{}, actual interface{}) string {
 	}
 
 	var e, a string
-	if ek != reflect.String {
+	if et != reflect.TypeOf("") {
 		e = spewConfig.Sdump(expected)
 		a = spewConfig.Sdump(actual)
 	} else {
-		e = expected.(string)
-		a = actual.(string)
+		e = reflect.ValueOf(expected).String()
+		a = reflect.ValueOf(actual).String()
 	}
 
 	diff, _ := difflib.GetUnifiedDiffString(difflib.UnifiedDiff{
@@ -1392,3 +1465,34 @@ var spewConfig = spew.ConfigState{
 type tHelper interface {
 	Helper()
 }
+
+// Eventually asserts that given condition will be met in waitFor time,
+// periodically checking target function each tick.
+//
+//    assert.Eventually(t, func() bool { return true; }, time.Second, 10*time.Millisecond)
+func Eventually(t TestingT, condition func() bool, waitFor time.Duration, tick time.Duration, msgAndArgs ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+
+	timer := time.NewTimer(waitFor)
+	ticker := time.NewTicker(tick)
+	checkPassed := make(chan bool)
+	defer timer.Stop()
+	defer ticker.Stop()
+	defer close(checkPassed)
+	for {
+		select {
+		case <-timer.C:
+			return Fail(t, "Condition never satisfied", msgAndArgs...)
+		case result := <-checkPassed:
+			if result {
+				return true
+			}
+		case <-ticker.C:
+			go func() {
+				checkPassed <- condition()
+			}()
+		}
+	}
+}