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rules_test.go
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package scan
import "testing"
func TestBin(t *testing.T) {
rules := NewRuleSet(BinRule)
tests := []Test{
NewTest("012", "01", 1, 1, BinType).
And("2", 1, 3, IllegalType).
WithError(`1:3: error: unexpected "2"`),
}
RunTests(t, rules, tests)
}
func TestBin0b(t *testing.T) {
rules := NewRuleSet(Bin0bRule, IntRule)
tests := []Test{
NewTest("0b0101", "0b0101", 1, 1, BinType),
NewTest("0B0101", "0B0101", 1, 1, BinType),
NewTest("0123", "0123", 1, 1, IntType),
}
RunTests(t, rules, tests)
}
func TestClassRule(t *testing.T) {
rules := NewRuleSet(
NewClassRule(Rune('-')),
NewClassRule(Rune('+')).WithType("plus"),
)
tests := []Test{
NewTest("-", "-", 1, 1, "-"),
NewTest("+", "+", 1, 1, "plus"),
}
RunTests(t, rules, tests)
}
func TestEscapeRules(t *testing.T) {
rule := NewRuleSet(StrDoubleQuoteRule.WithEscapeRules(
NewCharEncRule(
AlertEnc,
BackspaceEnc,
FormFeedEnc,
LineFeedEnc,
CarriageReturnEnc,
HorizontalTabEnc,
VerticalTabEnc,
),
Hex2EncRule.AsByte(true),
Hex4EncRule,
Hex8EncRule,
OctEnc,
))
tests := []Test{
NewTest(`"日本語"`, `日本語`, 1, 1, StrType),
NewTest(`"\u65e5\u672c\u8a9e"`, `日本語`, 1, 1, StrType),
NewTest(`"\U000065e5\U0000672c\U00008a9e"`, `日本語`, 1, 1, StrType),
NewTest(`"\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e"`, `日本語`, 1, 1, StrType),
}
RunTests(t, rule, tests)
}
func TestHex(t *testing.T) {
rules := NewRuleSet(HexRule)
tests := []Test{
NewTest("0123456789abcdefg", "0123456789abcdef", 1, 1, HexType).
And("g", 1, 17, IllegalType).
WithError(`1:17: error: unexpected "g"`),
}
RunTests(t, rules, tests)
}
func TestHex0x(t *testing.T) {
rules := NewRuleSet(Hex0xRule, IntRule)
tests := []Test{
NewTest("0x12bc", "0x12bc", 1, 1, HexType),
NewTest("0X12bc", "0X12bc", 1, 1, HexType),
NewTest("12bc", "12", 1, 1, IntType).
And("b", 1, 3, IllegalType).
WithError(`1:3: error: unexpected "b"`).
And("c", 1, 4, IllegalType).
WithError(`1:4: error: unexpected "c"`),
}
RunTests(t, rules, tests)
}
func TestIdent(t *testing.T) {
rules := NewRuleSet(StandardIdentRule.WithKeywords("true", "false"))
tests := []Test{
NewTest("abc_123", "abc_123", 1, 1, IdentType),
NewTest("_abc_123", "_abc_123", 1, 1, IdentType),
NewTest("0abc_123", "0", 1, 1, IllegalType).
WithError(`1:1: error: unexpected "0"`).
And("abc_123", 1, 2, IdentType),
NewTest("true", "true", 1, 1, "true"),
NewTest("false", "false", 1, 1, "false"),
}
RunTests(t, rules, tests)
}
func TestInt(t *testing.T) {
rules := NewRuleSet(IntRule)
tests := []Test{
NewTest("12345", "12345", 1, 1, IntType),
NewTest("-1234", "-", 1, 1, IllegalType).
WithError(`1:1: error: unexpected "-"`).
And("1234", 1, 2, IntType),
}
RunTests(t, rules, tests)
}
func TestLiterals(t *testing.T) {
rules := NewRuleSet(Literal("=", "===", "+", "+=", "/"))
tests := []Test{
NewTest("=", "=", 1, 1, "="),
NewTest("===", "===", 1, 1, "==="),
NewTest("==", "=", 1, 1, "=").
And("=", 1, 2, "="),
NewTest("+=/", "+=", 1, 1, "+=").
And("/", 1, 3, "/"),
}
RunTests(t, rules, tests)
}
func TestOct(t *testing.T) {
rules := NewRuleSet(OctRule)
tests := []Test{
NewTest("012345678", "01234567", 1, 1, OctType).
And("8", 1, 9, IllegalType).
WithError(`1:9: error: unexpected "8"`),
}
RunTests(t, rules, tests)
}
func TestOct0o(t *testing.T) {
rules := NewRuleSet(Oct0oRule, IntRule)
tests := []Test{
NewTest("0o755", "0o755", 1, 1, OctType),
NewTest("0O755", "0O755", 1, 1, OctType),
NewTest("7558", "7558", 1, 1, IntType),
}
RunTests(t, rules, tests)
}
func TestReal(t *testing.T) {
rules := NewRuleSet(RealRule)
tests := []Test{
NewTest("12.345", "12.345", 1, 1, RealType),
NewTest("-12.34", "-", 1, 1, IllegalType).
WithError(`1:1: error: unexpected "-"`).
And("12.34", 1, 2, RealType),
}
RunTests(t, rules, tests)
}
func TestSignedInt(t *testing.T) {
rules := NewRuleSet(SignedIntRule)
tests := []Test{
NewTest("1234567890a", "1234567890", 1, 1, IntType).
And("a", 1, 11, IllegalType).
WithError(`1:11: error: unexpected "a"`),
NewTest("-1234", "-1234", 1, 1, IntType),
NewTest("+1234", "+1234", 1, 1, IntType),
NewTest("0x1234", "0", 1, 1, IntType).
And("x", 1, 2, IllegalType).
WithError(`1:2: error: unexpected "x"`).
And("1234", 1, 3, IntType),
}
RunTests(t, rules, tests)
}
func TestSignedReal(t *testing.T) {
rules := NewRuleSet(SignedRealRule)
tests := []Test{
NewTest("1234", "1234", 1, 1, IntType),
NewTest("12.345", "12.345", 1, 1, RealType),
NewTest("-12.345", "-12.345", 1, 1, RealType),
NewTest(".1234", ".1234", 1, 1, RealType),
NewTest("-123.45e10", "-123.45", 1, 1, RealType).
And("e", 1, 8, IllegalType).
WithError(`1:8: error: unexpected "e"`).
And("10", 1, 9, IntType),
NewTest("-12.34.5", "-12.34", 1, 1, RealType).
And(".5", 1, 7, RealType),
NewTest("-12.34-5", "-12.34", 1, 1, RealType).
And("-5", 1, 7, IntType),
NewTest("1_234", "1", 1, 1, IntType).
And("_", 1, 2, IllegalType).
WithError(`1:2: error: unexpected "_"`).
And("234", 1, 3, IntType),
}
RunTests(t, rules, tests)
}
func TestSignedRealExp(t *testing.T) {
rules := NewRuleSet(SignedRealExpRule)
tests := []Test{
NewTest("123", "123", 1, 1, IntType),
NewTest("123e10", "123e10", 1, 1, RealType),
NewTest("1.23", "1.23", 1, 1, RealType),
NewTest("-123.45E-10", "-123.45E-10", 1, 1, RealType),
}
RunTests(t, rules, tests)
}
func TestSignedRealWithDigitSep(t *testing.T) {
rules := NewRuleSet(SignedRealExpRule.WithDigitSep(Rune('_')))
tests := []Test{
NewTest("1234567", "1234567", 1, 1, IntType),
NewTest("1_234_567", "1234567", 1, 1, IntType),
NewTest("0_600", "0600", 1, 1, IntType),
NewTest("0.15e+0_2", "0.15e+02", 1, 1, RealType),
NewTest("1_234__567", "1234", 1, 1, IntType).
And("_", 1, 6, IllegalType).
WithError(`1:6: error: unexpected "_"`).
And("_", 1, 7, IllegalType).
WithError(`1:7: error: unexpected "_"`).
And("567", 1, 8, IntType),
}
RunTests(t, rules, tests)
}
func TestStr(t *testing.T) {
rules := NewRuleSet(
StrDoubleQuoteRule,
StrSingleQuoteRule,
)
tests := []Test{
NewTest(`"a"`, `a`, 1, 1, StrType),
NewTest("'a'", "a", 1, 1, StrType),
NewTest(`'a\'b'`, `a'b`, 1, 1, StrType),
NewTest(`"a`, `a`, 1, 1, IllegalType).
WithError(`1:3: error: not terminated`),
}
RunTests(t, rules, tests)
}
func TestStrOptTerm(t *testing.T) {
rules := NewRuleSet(
StrDoubleQuoteRule.WithOptionalTerminator(true),
)
tests := []Test{
NewTest(`"a`, `a`, 1, 1, StrType),
}
RunTests(t, rules, tests)
}
func TestStrNesting(t *testing.T) {
rules := NewRuleSet(
NewStrRule('[', ']').WithNesting(true),
)
tests := []Test{
NewTest(`[[a]]`, `[a]`, 1, 1, StrType),
}
RunTests(t, rules, tests)
}