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/*
* Copyright (c) 2014 Contributor. All rights reserved.
*/
package scala.tools.nsc.classpath
import java.net.URL
import org.junit.Assert._
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import scala.reflect.io.VirtualFile
import scala.tools.nsc.io.AbstractFile
import scala.tools.nsc.util.ClassPath
/**
* Tests whether AggregateFlatClassPath returns correct entries taken from
* cp instances used during creating it and whether it preserves the ordering
* (in the case of the repeated entry for a class or a source it returns the first one).
*/
@RunWith(classOf[JUnit4])
class AggregateClassPathTest {
private abstract class TestClassPathBase extends ClassPath {
override def packages(inPackage: String): Seq[PackageEntry] = unsupported
override def sources(inPackage: String): Seq[SourceFileEntry] = unsupported
override def classes(inPackage: String): Seq[ClassFileEntry] = unsupported
override def list(inPackage: String): ClassPathEntries = unsupported
override def findClassFile(name: String): Option[AbstractFile] = unsupported
override def asClassPathStrings: Seq[String] = unsupported
override def asSourcePathString: String = unsupported
override def asURLs: Seq[URL] = unsupported
}
private case class TestClassPath(virtualPath: String, classesInPackage: EntryNamesInPackage*) extends TestClassPathBase {
override def classes(inPackage: String): Seq[ClassFileEntry] =
for {
entriesWrapper <- classesInPackage if entriesWrapper.inPackage == inPackage
name <- entriesWrapper.names
} yield classFileEntry(virtualPath, inPackage, name)
override def sources(inPackage: String): Seq[SourceFileEntry] = Nil
// we'll ignore packages
override def list(inPackage: String): ClassPathEntries = ClassPathEntries(Nil, classes(inPackage))
}
private case class TestSourcePath(virtualPath: String, sourcesInPackage: EntryNamesInPackage*) extends TestClassPathBase {
override def sources(inPackage: String): Seq[SourceFileEntry] =
for {
entriesWrapper <- sourcesInPackage if entriesWrapper.inPackage == inPackage
name <- entriesWrapper.names
} yield sourceFileEntry(virtualPath, inPackage, name)
override def classes(inPackage: String): Seq[ClassFileEntry] = Nil
// we'll ignore packages
override def list(inPackage: String): ClassPathEntries = ClassPathEntries(Nil, sources(inPackage))
}
private case class EntryNamesInPackage(inPackage: String)(val names: String*)
private val dir1 = "./dir1"
private val dir2 = "./dir2"
private val dir3 = "./dir3"
private val dir4 = ""
private val pkg1 = "pkg1"
private val pkg2 = "pkg2"
private val pkg3 = "pkg1.nested"
private val nonexistingPkg = "nonexisting"
private def unsupported = throw new UnsupportedOperationException
private def classFileEntry(pathPrefix: String, inPackage: String, fileName: String) =
ClassFileEntryImpl(classFile(pathPrefix, inPackage, fileName))
private def sourceFileEntry(pathPrefix: String, inPackage: String, fileName: String) =
SourceFileEntryImpl(sourceFile(pathPrefix, inPackage, fileName))
private def classFile(pathPrefix: String, inPackage: String, fileName: String) =
virtualFile(pathPrefix, inPackage, fileName, ".class")
private def sourceFile(pathPrefix: String, inPackage: String, fileName: String) =
virtualFile(pathPrefix, inPackage, fileName, ".scala")
private def virtualFile(pathPrefix: String, inPackage: String, fileName: String, extension: String) = {
val packageDirs =
if (inPackage == ClassPath.RootPackage) ""
else inPackage.split('.').mkString("/", "/", "")
new VirtualFile(fileName + extension, s"$pathPrefix$packageDirs/$fileName$extension")
}
private def createDefaultTestClasspath() = {
val partialClassPaths = Seq(TestSourcePath(dir1, EntryNamesInPackage(pkg1)("F", "A", "G")),
TestClassPath(dir2, EntryNamesInPackage(pkg1)("C", "B", "A"), EntryNamesInPackage(pkg2)("D", "A", "E")),
TestClassPath(dir3, EntryNamesInPackage(pkg1)("A", "D", "F")),
TestSourcePath(dir4, EntryNamesInPackage(pkg2)("A", "H", "I"), EntryNamesInPackage(pkg1)("A")),
TestSourcePath(dir2, EntryNamesInPackage(pkg3)("J", "K", "L"))
)
AggregateClassPath(partialClassPaths)
}
@Test
def testGettingPackages: Unit = {
case class ClassPathWithPackages(packagesInPackage: EntryNamesInPackage*) extends TestClassPathBase {
override def packages(inPackage: String): Seq[PackageEntry] =
packagesInPackage.find(_.inPackage == inPackage).map(_.names).getOrElse(Nil) map PackageEntryImpl
}
val partialClassPaths = Seq(ClassPathWithPackages(EntryNamesInPackage(pkg1)("pkg1.a", "pkg1.d", "pkg1.f")),
ClassPathWithPackages(EntryNamesInPackage(pkg1)("pkg1.c", "pkg1.b", "pkg1.a"),
EntryNamesInPackage(pkg2)("pkg2.d", "pkg2.a", "pkg2.e"))
)
val cp = AggregateClassPath(partialClassPaths)
val packagesInPkg1 = Seq("pkg1.a", "pkg1.d", "pkg1.f", "pkg1.c", "pkg1.b")
assertEquals(packagesInPkg1, cp.packages(pkg1).map(_.name))
val packagesInPkg2 = Seq("pkg2.d", "pkg2.a", "pkg2.e")
assertEquals(packagesInPkg2, cp.packages(pkg2).map(_.name))
assertEquals(Seq.empty, cp.packages(nonexistingPkg))
}
@Test
def testGettingClasses: Unit = {
val cp = createDefaultTestClasspath()
val classesInPkg1 = Seq(classFileEntry(dir2, pkg1, "C"),
classFileEntry(dir2, pkg1, "B"),
classFileEntry(dir2, pkg1, "A"),
classFileEntry(dir3, pkg1, "D"),
classFileEntry(dir3, pkg1, "F")
)
assertEquals(classesInPkg1, cp.classes(pkg1))
val classesInPkg2 = Seq(classFileEntry(dir2, pkg2, "D"),
classFileEntry(dir2, pkg2, "A"),
classFileEntry(dir2, pkg2, "E")
)
assertEquals(classesInPkg2, cp.classes(pkg2))
assertEquals(Seq.empty, cp.classes(pkg3))
assertEquals(Seq.empty, cp.classes(nonexistingPkg))
}
@Test
def testGettingSources: Unit = {
val partialClassPaths = Seq(TestClassPath(dir1, EntryNamesInPackage(pkg1)("F", "A", "G")),
TestSourcePath(dir2, EntryNamesInPackage(pkg1)("C", "B", "A"), EntryNamesInPackage(pkg2)("D", "A", "E")),
TestSourcePath(dir3, EntryNamesInPackage(pkg1)("A", "D", "F")),
TestClassPath(dir4, EntryNamesInPackage(pkg2)("A", "H", "I")),
TestClassPath(dir2, EntryNamesInPackage(pkg3)("J", "K", "L"))
)
val cp = AggregateClassPath(partialClassPaths)
val sourcesInPkg1 = Seq(sourceFileEntry(dir2, pkg1, "C"),
sourceFileEntry(dir2, pkg1, "B"),
sourceFileEntry(dir2, pkg1, "A"),
sourceFileEntry(dir3, pkg1, "D"),
sourceFileEntry(dir3, pkg1, "F")
)
assertEquals(sourcesInPkg1, cp.sources(pkg1))
val sourcesInPkg2 = Seq(sourceFileEntry(dir2, pkg2, "D"),
sourceFileEntry(dir2, pkg2, "A"),
sourceFileEntry(dir2, pkg2, "E")
)
assertEquals(sourcesInPkg2, cp.sources(pkg2))
assertEquals(Seq.empty, cp.sources(pkg3))
assertEquals(Seq.empty, cp.sources(nonexistingPkg))
}
@Test
def testList: Unit = {
val cp = createDefaultTestClasspath()
val classesAndSourcesInPkg1 = Seq(
ClassAndSourceFilesEntry(classFile(dir3, pkg1, "F"), sourceFile(dir1, pkg1, "F")),
ClassAndSourceFilesEntry(classFile(dir2, pkg1, "A"), sourceFile(dir1, pkg1, "A")),
sourceFileEntry(dir1, pkg1, "G"),
classFileEntry(dir2, pkg1, "C"),
classFileEntry(dir2, pkg1, "B"),
classFileEntry(dir3, pkg1, "D")
)
assertEquals(classesAndSourcesInPkg1, cp.list(pkg1).classesAndSources)
assertEquals(ClassPathEntries(Nil, Nil), cp.list(nonexistingPkg))
}
@Test
def testFindClass: Unit = {
val cp = createDefaultTestClasspath()
assertEquals(
Some(ClassAndSourceFilesEntry(classFile(dir2, pkg1, "A"), sourceFile(dir1, pkg1, "A"))),
cp.findClass(s"$pkg1.A")
)
assertEquals(Some(classFileEntry(dir3, pkg1, "D")), cp.findClass(s"$pkg1.D"))
assertEquals(Some(sourceFileEntry(dir2, pkg3, "L")), cp.findClass(s"$pkg3.L"))
assertEquals(None, cp.findClass("Nonexisting"))
}
}
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