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package scala.tools.nsc
package symtab
import org.junit.Assert._
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import scala.tools.testing.AssertUtil.assertThrows
import scala.reflect.internal.util.FreshNameCreator
@RunWith(classOf[JUnit4])
class FreshNameExtractorTest {
object symbolTable extends SymbolTableForUnitTesting
import symbolTable._
val prefixes = List("foo$", "x$", "bar", "bippy$baz$")
@Test
def extractionPreservesPrefix =
("" :: prefixes).foreach { creatorPrefix =>
prefixes.foreach { newPrefix =>
val Creator = new FreshNameCreator(creatorPrefix)
val Extractor = new FreshNameExtractor(creatorPrefix)
val Extractor(extractedPrefix) = TermName(Creator.newName(newPrefix))
assertEquals(newPrefix, extractedPrefix)
}
}
@Test
def extractionFailsOnCreatorPrefixMismatch = {
val Creator = new FreshNameCreator(prefixes.head)
val Extractor = new FreshNameExtractor(prefixes.tail.head)
assertThrows[MatchError] {
val Extractor(_) = TermName(Creator.newName("foo"))
}
}
@Test
def extractionsFailsIfNameDoesntEndWithNumber = {
val Creator = new FreshNameCreator(prefixes.head)
val Extractor = new FreshNameExtractor(prefixes.head)
assertThrows[MatchError] {
val Extractor(_) = TermName(Creator.newName("foo") + "bar")
}
}
}
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