Replace testify assertions with custom testing helpers

Author: emilien-puget

accessors_test.go

@@ -4,7 +4,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
 )
 
 func TestAccessorsAccessGetSingleField(t *testing.T) {

conversions_test.go

@@ -5,8 +5,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func TestConversionJSON(t *testing.T) {

fixture_test.go

@@ -4,7 +4,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
 )
 
 var fixtures = []struct {

go.mod

@@ -1,13 +1,3 @@
 module github.com/stretchr/objx
 
 go 1.20
-
-require github.com/stretchr/testify v1.11.1
-
-require (
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-)
-
-exclude github.com/stretchr/testify v1.8.0

go.sum

@@ -1,10 +0,0 @@
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

map_test.go

@@ -4,8 +4,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 var TestMap = objx.Map{

mutations_test.go

@@ -5,8 +5,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func TestExclude(t *testing.T) {

security_test.go

@@ -4,7 +4,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
 )
 
 func TestHashWithKey(t *testing.T) {

simple_example_test.go

@@ -4,8 +4,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/objx"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func TestSimpleExample(t *testing.T) {

std_assert_test.go

@@ -0,0 +1,249 @@
+package objx_test
+
+import (
+	"fmt"
+	"reflect"
+	"runtime"
+	"testing"
+)
+
+type nonfatal struct{}
+type fatal struct{}
+
+var assert nonfatal
+var require fatal
+
+func (nonfatal) fail(t *testing.T, msg string, msgAndArgs ...interface{}) bool {
+	if len(msgAndArgs) > 0 {
+		msg = fmt.Sprintf(msg, msgAndArgs...)
+	}
+	t.Helper()
+	t.Errorf(msg)
+	return false
+}
+
+func (fatal) fail(t *testing.T, msg string, msgAndArgs ...interface{}) bool {
+	if len(msgAndArgs) > 0 {
+		msg = fmt.Sprintf(msg, msgAndArgs...)
+	}
+	t.Helper()
+	t.Fatalf(msg)
+	return false
+}
+
+func (a nonfatal) Equal(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !reflect.DeepEqual(expected, actual) {
+		return a.fail(t, "not equal:\nexpected: %#v\nactual:   %#v", expected, actual)
+	}
+	return true
+}
+func (a fatal) Equal(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !reflect.DeepEqual(expected, actual) {
+		return a.fail(t, "not equal:\nexpected: %#v\nactual:   %#v", expected, actual)
+	}
+	return true
+}
+
+func (a nonfatal) NotEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if reflect.DeepEqual(expected, actual) {
+		return a.fail(t, "should not be equal: %#v", actual)
+	}
+	return true
+}
+func (a fatal) NotEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if reflect.DeepEqual(expected, actual) {
+		return a.fail(t, "should not be equal: %#v", actual)
+	}
+	return true
+}
+
+func isNil(i interface{}) bool {
+	if i == nil {
+		return true
+	}
+	v := reflect.ValueOf(i)
+	switch v.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+		return v.IsNil()
+	}
+	return false
+}
+
+func (a nonfatal) Nil(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !isNil(object) {
+		return a.fail(t, "expected nil, got: %#v", object)
+	}
+	return true
+}
+func (a fatal) Nil(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !isNil(object) {
+		return a.fail(t, "expected nil, got: %#v", object)
+	}
+	return true
+}
+
+func (a nonfatal) NotNil(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if isNil(object) {
+		return a.fail(t, "expected not nil")
+	}
+	return true
+}
+func (a fatal) NotNil(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if isNil(object) {
+		return a.fail(t, "expected not nil")
+	}
+	return true
+}
+
+func (a nonfatal) True(t *testing.T, value bool, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !value {
+		return a.fail(t, "expected true, got false")
+	}
+	return true
+}
+func (a fatal) True(t *testing.T, value bool, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !value {
+		return a.fail(t, "expected true, got false")
+	}
+	return true
+}
+
+func (a nonfatal) False(t *testing.T, value bool, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if value {
+		return a.fail(t, "expected false, got true")
+	}
+	return true
+}
+func (a fatal) False(t *testing.T, value bool, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if value {
+		return a.fail(t, "expected false, got true")
+	}
+	return true
+}
+
+func (a nonfatal) NoError(t *testing.T, err error, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if err != nil {
+		return a.fail(t, "expected no error, got: %v", err)
+	}
+	return true
+}
+func (a fatal) NoError(t *testing.T, err error, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if err != nil {
+		return a.fail(t, "expected no error, got: %v", err)
+	}
+	return true
+}
+
+func (a nonfatal) Error(t *testing.T, err error, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if err == nil {
+		return a.fail(t, "expected error, got nil")
+	}
+	return true
+}
+func (a fatal) Error(t *testing.T, err error, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if err == nil {
+		return a.fail(t, "expected error, got nil")
+	}
+	return true
+}
+
+func (a nonfatal) Panics(t *testing.T, f func(), msgAndArgs ...interface{}) bool {
+	t.Helper()
+	defer func() {
+		if r := recover(); r == nil {
+			_ = a.fail(t, "expected panic, but function did not panic")
+		}
+	}()
+	f()
+	return true
+}
+func (a fatal) Panics(t *testing.T, f func(), msgAndArgs ...interface{}) bool {
+	t.Helper()
+	defer func() {
+		if r := recover(); r == nil {
+			_ = a.fail(t, "expected panic, but function did not panic")
+		}
+	}()
+	f()
+	return true
+}
+
+func (a nonfatal) Empty(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !isEmpty(object) {
+		return a.fail(t, "expected empty, got: %#v", object)
+	}
+	return true
+}
+func (a fatal) Empty(t *testing.T, object interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	if !isEmpty(object) {
+		return a.fail(t, "expected empty, got: %#v", object)
+	}
+	return true
+}
+
+func isEmpty(object interface{}) bool {
+	if object == nil {
+		return true
+	}
+	v := reflect.ValueOf(object)
+	switch v.Kind() {
+	case reflect.Array, reflect.Slice, reflect.Map, reflect.Chan, reflect.String:
+		return v.Len() == 0
+	case reflect.Ptr, reflect.Interface:
+		if v.IsNil() {
+			return true
+		}
+		return isEmpty(v.Elem().Interface())
+	}
+	// numbers and structs are never considered empty here
+	return false
+}
+
+func (a nonfatal) Len(t *testing.T, object interface{}, length int, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	v := reflect.ValueOf(object)
+	switch v.Kind() {
+	case reflect.Array, reflect.Slice, reflect.Map, reflect.Chan, reflect.String:
+		if v.Len() != length {
+			return a.fail(t, "unexpected length, expected %d got %d", length, v.Len())
+		}
+		return true
+	default:
+		return a.fail(t, "Len not supported for kind %s", v.Kind())
+	}
+}
+func (a fatal) Len(t *testing.T, object interface{}, length int, msgAndArgs ...interface{}) bool {
+	t.Helper()
+	v := reflect.ValueOf(object)
+	switch v.Kind() {
+	case reflect.Array, reflect.Slice, reflect.Map, reflect.Chan, reflect.String:
+		if v.Len() != length {
+			return a.fail(t, "unexpected length, expected %d got %d", length, v.Len())
+		}
+		return true
+	default:
+		return a.fail(t, "Len not supported for kind %s", v.Kind())
+	}
+}
+
+// Allow formatting helpers similar to fmt in tests using fmt.Sprintf
+var _ = fmt.Sprintf
+var _ = runtime.NumCPU