Adding upstream version 2.6.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

internal/assert/assert.go

@@ -0,0 +1,22 @@
+package assert
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func Equal(t *testing.T, x, y interface{}) {
+	t.Helper()
+
+	r := DiffReporter{}
+	if !cmp.Equal(x, y, cmp.Reporter(&r)) {
+		t.Error(r.String())
+	}
+}
+
+func Nil(t *testing.T, x interface{}) {
+	t.Helper()
+
+	Equal(t, x, nil)
+}