umx_asm

UMX virtual machine assembly compiler
git clone git://bsandro.tech/umx_asm
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instruction_test.go (958B)

      1 package asm
      2 
      3 import "testing"
      4 
      5 func TestInstructionStringify(t *testing.T) {
      6 	input := []struct {
      7 		instr Instruction
      8 		str   string
      9 	}{
     10 		{Instruction{Opcode: CMOV, RegA: 10, RegB: 20, RegC: 30}, "CMOV 10 20 30 "},
     11 		{Instruction{Opcode: OUTP, RegC: 54}, "OUTP 54 "},
     12 		{Instruction{Opcode: ORTH, RegA: 5, Value: 65535}, "ORTH 5 65535"},
     13 		{Instruction{Opcode: HALT}, "HALT "},
     14 	}
     15 
     16 	for _, tt := range input {
     17 		if tt.instr.String() != tt.str {
     18 			t.Fatalf(`invalid string for instruction %q, expected "%s", got "%s"`, tt.instr, tt.str, tt.instr.String())
     19 		}
     20 	}
     21 }
     22 
     23 func TestInstructionParse(t *testing.T) {
     24 	input := []struct {
     25 		in  string
     26 		out string
     27 	}{
     28 		{"cmov 2 3 4", "CMOV 2 3 4 "},
     29 		{"orth 1 1020", "ORTH 1 1020"},
     30 		{"orth 1 'b'", "ORTH 1 98"},
     31 		{"outp 6", "OUTP 6 "},
     32 	}
     33 
     34 	for _, tt := range input {
     35 		ins := NewInstruction(tt.in)
     36 		if ins.String() != tt.out {
     37 			t.Fatalf(`test mismatch: "%s" instead of "%s"`, ins.String(), tt.out)
     38 		}
     39 	}
     40 }