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|
package require2
import (
"errors"
"reflect"
"runtime"
"strconv"
"strings"
"testing"
"golang.org/x/exp/constraints"
)
func Equal[T comparable](t *testing.T, expected T, actual T) {
if expected != actual {
fatalf(t, "assertion failed: %#v == %#v", expected, actual)
}
}
func DeepEqual[T any](t *testing.T, a T, b T) {
if !reflect.DeepEqual(a, b) {
fatalf(t, "assertion failed: reflect.DeepEqual(%#v, %#v)", a, b)
}
}
func Equalf[T comparable](t *testing.T, expected T, actual T, s string, fmtArgs ...any) {
if expected != actual {
fatalf(t, "assertion failed: %#v == %#v\n"+s, append([]any{expected, actual}, fmtArgs...)...)
}
}
func SlicesEqual[T comparable](t *testing.T, expected []T, actual []T) {
n := len(expected)
if len(actual) < n {
n = len(actual)
}
for i := 0; i < n; i++ {
if expected[i] != actual[i] {
fatalf(t, "differ at index %d: %#v != %#v", i, expected[i], actual[i])
}
}
if len(expected) != len(actual) {
fatalf(t, "lengths differ: %d != %d", len(expected), len(actual))
}
}
func Nil[T any](t *testing.T, a *T) {
if a != nil {
t.Fatal("expected nil")
}
}
func NotNil[T any](t *testing.T, a *T) {
if a == nil {
t.Fatal("expected not nil")
}
}
func NotNilf[T any](t *testing.T, a *T, f string, fmtArgs ...any) {
if a == nil {
fatalf(t, "expected not nil\n"+f, fmtArgs...)
}
}
func NoError(t *testing.T, err error) {
if err != nil {
fatalf(t, "expected no error, got %#v", err)
}
}
func Error(t *testing.T, err error) {
if err == nil {
fatalf(t, "expected %T (%s), got no error", err, err)
}
}
func ErrorIs(t *testing.T, err error, match error) {
if !errors.Is(err, match) {
fatalf(t, "expected %T (%s), got %#v", match, match, err)
}
}
func Greater[T constraints.Ordered](t *testing.T, a T, b T) {
if !(a > b) {
fatalf(t, "assertion failed: %#v > %#v", a, b)
}
}
func GreaterOrEqual[T constraints.Ordered](t *testing.T, a T, b T) {
if !(a >= b) {
fatalf(t, "assertion failed: %#v >= %#v", a, b)
}
}
func Less[T constraints.Ordered](t *testing.T, a T, b T) {
if !(a < b) {
fatalf(t, "assertion failed: %#v < %#v", a, b)
}
}
func LessOrEqual[T constraints.Ordered](t *testing.T, a T, b T) {
if !(a <= b) {
fatalf(t, "assertion failed: %#v <= %#v", a, b)
}
}
func InDelta[T ~float32 | ~float64](t *testing.T, actual T, expected T, delta T) {
diff := actual - expected
if diff < 0 {
diff = -diff
}
if diff > delta {
fatalf(t, "expected %#v to be within %#v of %#v, actually %#v", actual, delta, expected, diff)
}
}
func True(t *testing.T, b bool) {
if !b {
fatalf(t, "expected true")
}
}
func Truef(t *testing.T, b bool, s string, fmtArgs ...any) {
if !b {
fatalf(t, "expected true\n"+s, fmtArgs...)
}
}
func ElementsMatch[T comparable](t *testing.T, a []T, b []T) {
aSet := make(map[T]struct{}, len(a))
for _, ai := range a {
aSet[ai] = struct{}{}
}
bSet := make(map[T]struct{}, len(b))
for _, bi := range b {
bSet[bi] = struct{}{}
}
for ai := range aSet {
_, ok := bSet[ai]
if !ok {
fatalf(t, "%#v appears in a but not in b", ai)
}
}
for bi := range bSet {
_, ok := aSet[bi]
if !ok {
fatalf(t, "%#v appears in b but not in a", bi)
}
}
}
func fatalf(t *testing.T, s string, fmtArgs ...any) {
var buf [64]uintptr
var ptrs []uintptr
skip := 2
for {
n := runtime.Callers(skip, buf[:])
ptrs = append(ptrs, buf[:n]...)
if n < len(buf) {
break
}
skip += n
}
var sb strings.Builder
frames := runtime.CallersFrames(ptrs)
for {
frame, more := frames.Next()
_, _ = sb.WriteString(frame.Function)
_, _ = sb.WriteString("(...)\n ")
_, _ = sb.WriteString(frame.File)
_, _ = sb.WriteString(":")
_, _ = sb.WriteString(strconv.Itoa(frame.Line))
_, _ = sb.WriteString("\n")
if !more {
break
}
}
t.Fatalf(s+"\n\n%s", append(fmtArgs, sb.String())...)
}
|
