Add NotSame

* Added NotSame test for the assert package
* Added NotSame test for the require package
* Included formatted variants of NotSame for both assert and require

assert/assertion_format.go

@@ -526,6 +526,19 @@ func Samef(t TestingT, expected interface{}, actual interface{}, msg string, arg
 	return Same(t, expected, actual, append([]interface{}{msg}, args...)...)
 }
 
+// NotSamef asserts that two pointers do not reference the same object.
+//
+//    assert.NotSamef(t, ptr1, ptr2, "error message %s", "formatted")
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func NotSamef(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+	return NotSame(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
 // Subsetf asserts that the specified list(array, slice...) contains all
 // elements given in the specified subset(array, slice...).
 //

assert/assertion_forward.go

@@ -1041,6 +1041,32 @@ func (a *Assertions) Samef(expected interface{}, actual interface{}, msg string,
 	return Samef(a.t, expected, actual, msg, args...)
 }
 
+// NotSame asserts that two pointers do not reference the same object.
+//
+//    a.NotSame(ptr1, ptr2)
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func (a *Assertions) NotSame(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
+	return NotSame(a.t, expected, actual, msgAndArgs...)
+}
+
+// NotSamef asserts that two pointers do not reference the same object.
+//
+//    a.NotSamef(ptr1, ptr2, "error message %s", "formatted")
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func (a *Assertions) NotSamef(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
+	return NotSamef(a.t, expected, actual, msg, args...)
+}
+
 // Subset asserts that the specified list(array, slice...) contains all
 // elements given in the specified subset(array, slice...).
 //

assert/assertions.go

@@ -383,6 +383,36 @@ func Same(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) b
 	return true
 }
 
+// NotSame asserts that two pointers do not reference the same object.
+//
+//    assert.NotSame(t, ptr1, ptr2)
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func NotSame(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 true
+	}
+
+	if expected == actual {
+		return Fail(t, fmt.Sprintf(
+			"Expected and actual point to the same object: %p %#v",
+			expected, expected), msgAndArgs...)
+	}
+
+	return true
+}
+
 // formatUnequalValues takes two values of arbitrary types and returns string
 // representations appropriate to be presented to the user.
 //

assert/assertions_test.go

@@ -240,6 +240,29 @@ func TestSame(t *testing.T) {
 	}
 }
 
+func TestNotSame(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	ptr := func(i int) *int {
+		return &i
+	}
+
+	if !NotSame(mockT, ptr(1), ptr(1)) {
+		t.Error("NotSame should return true")
+	}
+	if NotSame(mockT, 1, 1) {
+		t.Error("NotSame should return false; non-pointer inputs")
+	}
+	p := ptr(2)
+	if NotSame(mockT, p, *p) {
+		t.Error("NotSame should return false; non-pointer input")
+	}
+	if NotSame(mockT, p, p) {
+		t.Error("Same should return false")
+	}
+}
+
 // bufferT implements TestingT. Its implementation of Errorf writes the output that would be produced by
 // testing.T.Errorf to an internal bytes.Buffer.
 type bufferT struct {

require/require.go

@@ -6,10 +6,11 @@
 package require
 
 import (
-	assert "github.com/stretchr/testify/assert"
 	http "net/http"
 	url "net/url"
 	time "time"
+
+	assert "github.com/stretchr/testify/assert"
 )
 
 // Condition uses a Comparison to assert a complex condition.
@@ -1330,6 +1331,38 @@ func Samef(t TestingT, expected interface{}, actual interface{}, msg string, arg
 	t.FailNow()
 }
 
+// NotSame asserts that two pointers do not reference the same object.
+//
+//    assert.NotSame(t, ptr1, ptr2)
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func NotSame(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+	if assert.NotSame(t, expected, actual, msgAndArgs...) {
+		return
+	}
+	t.FailNow()
+}
+
+// NotSamef asserts that two pointers reference the same object.
+//
+//    assert.NotSamef(t, ptr1, ptr2, "error message %s", "formatted")
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func NotSamef(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) {
+	if h, ok := t.(tHelper); ok {
+		h.Helper()
+	}
+	if assert.NotSamef(t, expected, actual, msg, args...) {
+		return
+	}
+	t.FailNow()
+}
+
 // Subset asserts that the specified list(array, slice...) contains all
 // elements given in the specified subset(array, slice...).
 //

require/require_forward.go

@@ -6,10 +6,11 @@
 package require
 
 import (
-	assert "github.com/stretchr/testify/assert"
 	http "net/http"
 	url "net/url"
 	time "time"
+
+	assert "github.com/stretchr/testify/assert"
 )
 
 // Condition uses a Comparison to assert a complex condition.
@@ -1042,6 +1043,32 @@ func (a *Assertions) Samef(expected interface{}, actual interface{}, msg string,
 	Samef(a.t, expected, actual, msg, args...)
 }
 
+// NotSame asserts that two pointers do not reference the same object.
+//
+//    a.NotSame(ptr1, ptr2)
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func (a *Assertions) NotSame(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
+	NotSame(a.t, expected, actual, msgAndArgs...)
+}
+
+// NotSamef asserts that two pointers do not reference the same object.
+//
+//    a.NotSamef(ptr1, ptr2, "error message %s", "formatted")
+//
+// Both arguments must be pointer variables. Pointer variable sameness is
+// determined based on the equality of both type and value.
+func (a *Assertions) NotSamef(expected interface{}, actual interface{}, msg string, args ...interface{}) {
+	if h, ok := a.t.(tHelper); ok {
+		h.Helper()
+	}
+	NotSamef(a.t, expected, actual, msg, args...)
+}
+
 // Subset asserts that the specified list(array, slice...) contains all
 // elements given in the specified subset(array, slice...).
 //