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arf/lexer/lexer_test.go
2022-08-25 23:17:42 -04:00

273 lines
7.9 KiB
Go

package lexer
import "testing"
import "git.tebibyte.media/sashakoshka/arf/file"
import "git.tebibyte.media/sashakoshka/arf/types"
import "git.tebibyte.media/sashakoshka/arf/infoerr"
func quickToken (width int, kind TokenKind, value any) (token Token) {
token.location.SetWidth(width)
token.kind = kind
token.value = value
return
}
func checkTokenSlice (filePath string, test *testing.T, correct ...Token) {
test.Log("checking lexer results for", filePath)
file, err := file.Open(filePath)
if err != nil {
test.Log(err)
test.Fail()
return
}
tokens, err := Tokenize(file)
// print all tokens
for index, token := range tokens {
test.Log(index, "\tgot token:", token.Describe())
}
if err != nil {
test.Log("returned error:")
test.Log(err.Error())
test.Fail()
return
}
if len(tokens) != len(correct) {
test.Log("lexed", len(tokens), "tokens, want", len(correct))
test.Fail()
return
}
test.Log("token slice length match", len(tokens), "=", len(correct))
for index, token := range tokens {
if token.location.Width() != correct[index].location.Width() {
test.Log("token", index, "has bad width")
test.Log (
"have", token.location.Width(),
"want", correct[index].location.Width())
test.Fail()
return
}
if !token.Equals(correct[index]) {
test.Log("token", index, "not equal")
test.Log (
"have", token.Describe(),
"want", correct[index].Describe())
test.Fail()
return
}
}
test.Log("token slice content match")
}
func compareErr (
filePath string,
correctKind infoerr.ErrorKind,
correctMessage string,
correctRow int,
correctColumn int,
correctWidth int,
test *testing.T,
) {
test.Log("testing errors in", filePath)
file, err := file.Open(filePath)
if err != nil {
test.Log(err)
test.Fail()
return
}
_, err = Tokenize(file)
check := err.(infoerr.Error)
test.Log("error that was recieved:")
test.Log(check)
if check.Kind() != correctKind {
test.Log("mismatched error kind")
test.Log("- want:", correctKind)
test.Log("- have:", check.Kind())
test.Fail()
}
if check.Message() != correctMessage {
test.Log("mismatched error message")
test.Log("- want:", correctMessage)
test.Log("- have:", check.Message())
test.Fail()
}
if check.Row() != correctRow {
test.Log("mismatched error row")
test.Log("- want:", correctRow)
test.Log("- have:", check.Row())
test.Fail()
}
if check.Column() != correctColumn {
test.Log("mismatched error column")
test.Log("- want:", correctColumn)
test.Log("- have:", check.Column())
test.Fail()
}
if check.Width() != correctWidth {
test.Log("mismatched error width")
test.Log("- want:", check.Width())
test.Log("- have:", correctWidth)
test.Fail()
}
}
func TestTokenizeAll (test *testing.T) {
checkTokenSlice("../tests/lexer/all.arf", test,
quickToken(3, TokenKindSeparator, nil),
quickToken(2, TokenKindPermission, types.PermissionReadWrite),
quickToken(2, TokenKindReturnDirection, nil),
quickToken(10, TokenKindInt, int64(-349820394)),
quickToken(9, TokenKindUInt, uint64(932748397)),
quickToken(12, TokenKindFloat, 239485.37520),
quickToken(16, TokenKindString, "hello world!\n"),
quickToken(3, TokenKindRune, 'E'),
quickToken(10, TokenKindName, "helloWorld"),
quickToken(1, TokenKindColon, nil),
quickToken(1, TokenKindDot, nil),
quickToken(1, TokenKindComma, nil),
quickToken(2, TokenKindElipsis, nil),
quickToken(1, TokenKindLBracket, nil),
quickToken(1, TokenKindRBracket, nil),
quickToken(1, TokenKindLBrace, nil),
quickToken(1, TokenKindRBrace, nil),
quickToken(1, TokenKindNewline, nil),
quickToken(1, TokenKindPlus, nil),
quickToken(1, TokenKindMinus, nil),
quickToken(2, TokenKindIncrement, nil),
quickToken(2, TokenKindDecrement, nil),
quickToken(1, TokenKindAsterisk, nil),
quickToken(1, TokenKindSlash, nil),
quickToken(1, TokenKindAt, nil),
quickToken(1, TokenKindExclamation, nil),
quickToken(1, TokenKindPercent, nil),
quickToken(2, TokenKindPercentAssignment, nil),
quickToken(1, TokenKindTilde, nil),
quickToken(2, TokenKindTildeAssignment, nil),
quickToken(1, TokenKindEqualTo, nil),
quickToken(2, TokenKindNotEqualTo, nil),
quickToken(1, TokenKindLessThan, nil),
quickToken(2, TokenKindLessThanEqualTo, nil),
quickToken(2, TokenKindLShift, nil),
quickToken(3, TokenKindLShiftAssignment, nil),
quickToken(1, TokenKindGreaterThan, nil),
quickToken(2, TokenKindGreaterThanEqualTo, nil),
quickToken(2, TokenKindRShift, nil),
quickToken(3, TokenKindRShiftAssignment, nil),
quickToken(1, TokenKindBinaryOr, nil),
quickToken(2, TokenKindBinaryOrAssignment, nil),
quickToken(2, TokenKindLogicalOr, nil),
quickToken(1, TokenKindBinaryAnd, nil),
quickToken(2, TokenKindBinaryAndAssignment, nil),
quickToken(2, TokenKindLogicalAnd, nil),
quickToken(1, TokenKindBinaryXor, nil),
quickToken(2, TokenKindBinaryXorAssignment, nil),
quickToken(1, TokenKindNewline, nil),
)
}
func TestTokenizeNumbers (test *testing.T) {
checkTokenSlice("../tests/lexer/numbers.arf", test,
quickToken(1, TokenKindUInt, uint64(0)),
quickToken(1, TokenKindNewline, nil),
quickToken(1, TokenKindUInt, uint64(8)),
quickToken(1, TokenKindNewline, nil),
quickToken(8, TokenKindUInt, uint64(83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(29, TokenKindUInt, uint64(83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(9, TokenKindUInt, uint64(83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(10, TokenKindUInt, uint64(83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(9, TokenKindInt, int64(-83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(30, TokenKindInt, int64(-83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(10, TokenKindInt, int64(-83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(11, TokenKindInt, int64(-83628266)),
quickToken(1, TokenKindNewline, nil),
quickToken(8, TokenKindFloat, float64(0.123478)),
quickToken(1, TokenKindNewline, nil),
quickToken(8, TokenKindFloat, float64(234.3095)),
quickToken(1, TokenKindNewline, nil),
quickToken(6, TokenKindFloat, float64(-2.312)),
quickToken(1, TokenKindNewline, nil),
)
}
func TestTokenizeText (test *testing.T) {
checkTokenSlice("../tests/lexer/text.arf", test,
quickToken(34, TokenKindString, "hello world!\a\b\f\n\r\t\v'\"\\"),
quickToken(1, TokenKindNewline, nil),
quickToken(4, TokenKindRune, '\a'),
quickToken(4, TokenKindRune, '\b'),
quickToken(4, TokenKindRune, '\f'),
quickToken(4, TokenKindRune, '\n'),
quickToken(4, TokenKindRune, '\r'),
quickToken(4, TokenKindRune, '\t'),
quickToken(4, TokenKindRune, '\v'),
quickToken(4, TokenKindRune, '\''),
quickToken(4, TokenKindRune, '"' ),
quickToken(4, TokenKindRune, '\\'),
quickToken(1, TokenKindNewline, nil),
quickToken(35, TokenKindString, "hello world \x40\u0040\U00000040!"),
quickToken(1, TokenKindNewline, nil),
)
}
func TestTokenizeIndent (test *testing.T) {
checkTokenSlice("../tests/lexer/indent.arf", test,
quickToken(5, TokenKindName, "line1"),
quickToken(1, TokenKindNewline, nil),
quickToken(1, TokenKindIndent, 1),
quickToken(5, TokenKindName, "line2"),
quickToken(1, TokenKindNewline, nil),
quickToken(4, TokenKindIndent, 4),
quickToken(5, TokenKindName, "line3"),
quickToken(1, TokenKindNewline, nil),
quickToken(5, TokenKindName, "line4"),
quickToken(1, TokenKindNewline, nil),
quickToken(2, TokenKindIndent, 2),
quickToken(5, TokenKindName, "line5"),
quickToken(1, TokenKindNewline, nil),
)
}
func TestTokenizeErr (test *testing.T) {
compareErr (
"../tests/lexer/error/unexpectedSymbol.arf",
infoerr.ErrorKindError,
"unexpected symbol character ;",
1, 5, 1,
test)
compareErr (
"../tests/lexer/error/excessDataRune.arf",
infoerr.ErrorKindError,
"excess data in rune literal",
1, 1, 7,
test)
compareErr (
"../tests/lexer/error/unknownEscape.arf",
infoerr.ErrorKindError,
"unknown escape character g",
1, 2, 1,
test)
}