start example/test for components access

gotypes/components_test.go

@@ -0,0 +1,40 @@
+package gotypes
+
+import (
+	"go/types"
+	"testing"
+)
+
+func TestBasicKindsArePrimitive(t *testing.T) {
+	kinds := []types.BasicKind{
+		types.Bool,
+		types.Int,
+		types.Int8,
+		types.Int16,
+		types.Int32,
+		types.Int64,
+		types.Uint,
+		types.Uint8,
+		types.Uint16,
+		types.Uint32,
+		types.Uint64,
+		types.Uintptr,
+		types.Float32,
+		types.Float64,
+	}
+	for _, k := range kinds {
+		AssertPrimitive(t, types.Typ[k])
+	}
+}
+
+func TestPointersArePrimitive(t *testing.T) {
+	typ := types.NewPointer(types.Typ[types.Uint32])
+	AssertPrimitive(t, typ)
+}
+
+func AssertPrimitive(t *testing.T, typ types.Type) {
+	c := NewComponent("primitive", typ, 0)
+	if _, err := c.Resolve(); err != nil {
+		t.Errorf("expected type %s to be primitive: got error '%s'", typ, err)
+	}
+}