package asm import ( "bytes" "encoding/hex" "fmt" "log" "testing" "git.defalsify.org/vise/vm" ) func TestParserInit(t *testing.T) { var b []byte b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.CATCH, []string{"xyzzy"}, []byte{0x02, 0x9a}, []uint8{1}) b = vm.NewLine(b, vm.INCMP, []string{"inky", "pinky"}, nil, nil) b = vm.NewLine(b, vm.LOAD, []string{"foo"}, []byte{42}, nil) b = vm.NewLine(b, vm.MOUT, []string{"bar", "barbarbaz"}, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) n, err := Parse(s, nil) if err != nil { t.Fatal(err) } if n != 0 { t.Fatalf("expected 0 byte write count, got %v", n) } } func TestParserSized(t *testing.T) { var b []byte b = vm.NewLine(b, vm.LOAD, []string{"foo"}, []byte{42}, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 8 { t.Fatalf("expected 8 byte write count, got %v", n) } rb := r.Bytes() if !bytes.Equal(rb, []byte{0x00, vm.LOAD, 0x03, 0x66, 0x6f, 0x6f, 0x01, 0x2a}) { t.Fatalf("expected 0x00%x012a, got %v", vm.LOAD, rb) } } func TestParseDisplay(t *testing.T) { var b []byte b = vm.NewLine(b, vm.MOUT, []string{"foo", "baz ba zbaz"}, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 18 { t.Fatalf("expected 18 byte write count, got %v", n) } rb := r.Bytes() expect := []byte{0x00, vm.MOUT, 0x03, 0x66, 0x6f, 0x6f, 0x0b, 0x62, 0x61, 0x7a, 0x20, 0x62, 0x61, 0x20, 0x7a, 0x62, 0x61, 0x7a} if !bytes.Equal(rb, expect) { t.Fatalf("expected %x, got %x", expect, rb) } } func TestParseDouble(t *testing.T) { var b []byte b = vm.NewLine(b, vm.INCMP, []string{"bar", "foo"}, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 10 { t.Fatalf("expected 18 byte write count, got %v", n) } rb := r.Bytes() expect := []byte{0x00, vm.INCMP, 0x03, 0x66, 0x6f, 0x6f, 0x03, 0x62, 0x61, 0x72} if !bytes.Equal(rb, expect) { t.Fatalf("expected %x, got %x", expect, rb) } } func TestParseMenu(t *testing.T) { s := `DOWN foobar 00 "inky pinky" UP s1 "tinkywinky" ` r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } log.Printf("wrote %v bytes", n) s = `MOUT foobar 00 "inky pinky" MOUT bazbar s1 "tinky winky" HALT INCMP 00 foobar INCMP s1 bazbar ` r_check := bytes.NewBuffer(nil) n, err = Parse(s, r) if err != nil { t.Fatal(err) } log.Printf("wrote %v bytes", n) if !bytes.Equal(r_check.Bytes(), r.Bytes()) { fmt.Errorf("expected:\n\t%xgot:\n\t%x\n", r_check, r) } } func TestParseSingle(t *testing.T) { var b []byte b = vm.NewLine(b, vm.MAP, []string{"xyzzy"}, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 8 { t.Fatalf("expected 8 byte write count, got %v", n) } rb := r.Bytes() expect := []byte{0x00, vm.MAP, 0x05, 0x78, 0x79, 0x7a, 0x7a, 0x79} if !bytes.Equal(rb, expect) { t.Fatalf("expected %x, got %x", expect, rb) } } func TestParseSig(t *testing.T) { b := vm.NewLine(nil, vm.CATCH, []string{"plugh"}, []byte{0x02, 0x9a}, []uint8{0x2a}) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 12 { t.Fatalf("expected 12 byte write count, got %v", n) } rb := r.Bytes() expect_hex := "000105706c75676802029a01" expect, err := hex.DecodeString(expect_hex) if err != nil { t.Fatal(err) } if !bytes.Equal(rb, expect) { t.Fatalf("expected %v, got %x", expect_hex, rb) } b = vm.NewLine(nil, vm.CATCH, []string{"plugh"}, []byte{0x01}, []uint8{0x0}) s, err = vm.ToString(b) log.Printf("parsing:\n%s\n", s) r = bytes.NewBuffer(nil) n, err = Parse(s, r) if err != nil { t.Fatal(err) } if n != 11 { t.Fatalf("expected 11 byte write count, got %v", n) } rb = r.Bytes() expect_hex = "000105706c756768010100" expect, err = hex.DecodeString(expect_hex) if err != nil { t.Fatal(err) } if !bytes.Equal(rb, expect) { t.Fatalf("expected %v, got %x", expect_hex, rb) } } func TestParseNoarg(t *testing.T) { var b []byte b = vm.NewLine(b, vm.HALT, nil, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } if n != 2 { t.Fatalf("expected 8 byte write count, got %v", n) } rb := r.Bytes() expect := []byte{0x00, vm.HALT} if !bytes.Equal(rb, expect) { t.Fatalf("expected %x, got %x", expect, rb) } } func TestParserWriteMultiple(t *testing.T) { var b []byte b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.CATCH, []string{"xyzzy"}, []byte{0x02, 0x9a}, []uint8{1}) b = vm.NewLine(b, vm.INCMP, []string{"pinky", "inky"}, nil, nil) b = vm.NewLine(b, vm.LOAD, []string{"foo"}, []byte{42}, nil) b = vm.NewLine(b, vm.MOUT, []string{"bar", "bar barb az"}, nil, nil) s, err := vm.ToString(b) log.Printf("parsing:\n%s\n", s) r := bytes.NewBuffer(nil) n, err := Parse(s, r) if err != nil { t.Fatal(err) } log.Printf("result %x", r.Bytes()) r_expect_hex := "000700010578797a7a7902029a01000804696e6b790570696e6b79000303666f6f012a000a036261720b626172206261726220617a" r_expect, err := hex.DecodeString(r_expect_hex) if err != nil { t.Fatal(err) } n_expect := len(r_expect) if n != n_expect { t.Fatalf("expected total %v bytes output, got %v", n_expect, n) } rb := r.Bytes() if !bytes.Equal(rb, r_expect) { t.Fatalf("expected result:\n\t%v, got:\n\t%x", r_expect_hex, rb) } _, err = vm.ParseAll(rb, nil) if err != nil { t.Fatal(err) } }