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shared/src/test/scala/scala/util/parsing/combinator/gh72.scala
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import scala.util.parsing.combinator.Parsers | ||
import scala.util.parsing.input.CharSequenceReader | ||
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import org.junit.Test | ||
import org.junit.Assert.assertEquals | ||
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class gh72 { | ||
class TestParsers extends Parsers { | ||
type Elem = Char | ||
val left: Parser[String] = 'a' ~ 'b' ~ 'c' ^^^ "left" withFailureMessage "failure on left" | ||
val right: Parser[String] = 'a' ~ 'b' ~ 'c' ^^^ "right" withFailureMessage "failure on right" | ||
def p: Parser[String] = left ||| right | ||
} | ||
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@Test | ||
def test(): Unit = { | ||
val tstParsers = new TestParsers | ||
val s = new CharSequenceReader("abc") | ||
assertEquals("[1.4] parsed: left", tstParsers.p(s).toString) | ||
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val t = new CharSequenceReader("def") | ||
val expectedFailure = """[1.1] failure: failure on left | ||
def | ||
^""" | ||
assertEquals(expectedFailure, tstParsers.p(t).toString) | ||
} | ||
} |