operand: const types

operand/const_test.go

@@ -0,0 +1,32 @@
+package operand
+
+import "testing"
+
+func TestConstants(t *testing.T) {
+	cases := []struct {
+		Const Constant
+		Asm   string
+		Bytes int
+	}{
+		{F32(3.1415), "$(3.1415)", 4},
+		{F64(3.1415), "$(3.1415)", 8},
+		{U8(42), "$0x2a", 1},
+		{U16(42), "$0x002a", 2},
+		{U32(42), "$0x0000002a", 4},
+		{U64(42), "$0x000000000000002a", 8},
+		{I8(-42), "$-42", 1},
+		{I16(-42), "$-42", 2},
+		{I32(-42), "$-42", 4},
+		{I64(-42), "$-42", 8},
+		{String("hello"), "$\"hello\"", 5},
+		{String("quot:\"q\""), "$\"quot:\\\"q\\\"\"", 8},
+	}
+	for _, c := range cases {
+		if c.Const.Asm() != c.Asm {
+			t.Errorf("%v.Asm() = %v; expect %v", c.Const, c.Const.Asm(), c.Asm)
+		}
+		if c.Const.Bytes() != c.Bytes {
+			t.Errorf("%v.Bytes() = %v; expect %v", c.Const, c.Const.Bytes(), c.Bytes)
+		}
+	}
+}