add constraint plain.Coder test

Author: scott-cotton

memory/constraint_test.go

@@ -0,0 +1,45 @@
+// Copyright 2021 The pal authors (see AUTHORS)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package memory
+
+import (
+	"testing"
+
+	"github.com/go-air/pal/indexing"
+	"github.com/go-air/pal/internal/plain"
+)
+
+func clob(codr plain.Coder) {
+	c := codr.(*Constraint)
+	c.Dest = 0
+	c.Src = 0
+	c.Kind = 0
+	if c.Index != nil {
+		c.Index = c.Index.Gen()
+	}
+}
+
+func TestConstraint(t *testing.T) {
+	var d = []Constraint{
+		AddressOf(11, 32),
+		Load(12, 33),
+		Store(13, 34),
+		TransferIndex(14, 34, indexing.ConstVals().FromInt64(11))}
+	for i := range d {
+		if err := plain.TestRoundTripClobber(&d[i], clob, true); err != nil {
+			t.Error(err)
+		}
+	}
+}