chore: move the go code into a subfolder

apps/api/internal/zerrors/zerror_test.go

@@ -0,0 +1,44 @@
+package zerrors_test
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+func TestErrorMethod(t *testing.T) {
+	err := zerrors.ThrowError(nil, "id", "msg")
+	expected := "ID=id Message=msg"
+	assert.Equal(t, expected, err.Error())
+
+	err = zerrors.ThrowError(err, "subID", "subMsg")
+	subExptected := "ID=subID Message=subMsg Parent=(ID=id Message=msg)"
+	assert.Equal(t, subExptected, err.Error())
+}
+
+func TestIsZitadelError(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+		want bool
+	}{
+		{
+			name: "zitadel error",
+			err:  zerrors.ThrowInvalidArgument(nil, "id", "msg"),
+			want: true,
+		},
+		{
+			name: "other error",
+			err:  errors.New("just a random error"),
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equalf(t, tt.want, zerrors.IsZitadelError(tt.err), "IsZitadelError(%v)", tt.err)
+		})
+	}
+}