Migrate majority of partest jvm tests to JUnit

build.sbt

@@ -81,23 +81,43 @@ pomExtra := (
 // default value must be set here
 TestKeys.includeTestDependencies := true
 
+libraryDependencies ++= Seq("junit" % "junit" % "4.11" % "test", "com.novocode" % "junit-interface" % "0.10" % "test")
+
 // default
 TestKeys.partestVersion := "1.0.0-RC6"
 
 // the actual partest the interface calls into -- must be binary version close enough to ours
 // so that it can link to the compiler/lib we're using (testing)
 // NOTE: not sure why, but the order matters (maybe due to the binary version conflicts for xml/parser combinators pulled in for scaladoc?)
 libraryDependencies ++= (
-  if (TestKeys.includeTestDependencies.value)
-    Seq("org.scala-lang.modules" %% "scala-partest-interface" % "0.2"                         % "test",
-        "org.scala-lang.modules" %% "scala-partest"           % TestKeys.partestVersion.value % "test")
+  if (TestKeys.includeTestDependencies.value) {
+    /**
+     * Exclude all transitive dependencies of partest that include scala-.xml.
+     * This way we avoid having two (or more) versions of scala-xml on a classpath.
+     * This fixes problem described here:
+     * https://github.com/scala/scala-xml/pull/6#issuecomment-26614894
+     *
+     * Note that we are using ModuleID.exclude instead of more flexible ModuleID.excludeAll
+     * (describe here: http://www.scala-sbt.org/release/docs/Detailed-Topics/Library-Management#exclude-transitive-dependencies)
+     * because only plain excludes are incorporated in generated pom.xml. There are two ways
+     * to address this problem:
+     *
+     *   1. Figure out how to depend on partest in non-transitive way: not include that dependency
+     *      in generated pom.xml for scala-xml.
+     *   2. Declare dependencies in partest as provided so they are not includeded transitively.
+     *
+     */
+    def excludeScalaXml(dep: ModuleID): ModuleID =
+      dep.exclude("org.scala-lang.modules", "scala-xml_2.11.0-M5").
+      exclude("org.scala-lang.modules", "scala-xml_2.11.0-M4").
+      exclude("org.scalacheck", "scalacheck_2.11.0-M5")
+    Seq("org.scala-lang.modules" % "scala-partest-interface_2.11.0-M5" % "0.2"                         % "test",
+        "org.scala-lang.modules" % "scala-partest_2.11.0-M5"           % TestKeys.partestVersion.value % "test").
+      map(excludeScalaXml)
+  }
   else Seq.empty
 )
 
-
-// necessary for partest -- see comments in its build.sbt
-conflictWarning ~= { _.copy(failOnConflict = false) }
-
 fork in Test := true
 
 javaOptions in Test += "-Xmx1G"

src/test/scala/scala/xml/AttributeTest.scala

@@ -0,0 +1,68 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Ignore
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+import org.junit.Assert.assertTrue
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertEquals
+
+class AttributeTest {
+  @Test
+  def unprefixedAttribute: Unit = {
+    val x = new UnprefixedAttribute("foo","bar", Null)
+    assertEquals(Some(Text("bar")), x.get("foo"))
+    assertEquals(Text("bar"), x("foo"))
+    assertEquals(None, x.get("no_foo"))
+    assertEquals(null, x("no_foo"))
+
+    val y = x.remove("foo")
+    assertEquals(Null, y)
+
+    val z = new UnprefixedAttribute("foo", null:NodeSeq, x)
+    assertEquals(None, z.get("foo"))
+
+    var appended = x append x append x append x
+    var len = 0; while (appended ne Null) {
+      appended = appended.next
+      len = len + 1
+    }
+    assertEquals("removal of duplicates for unprefixed attributes in append", 1, len)
+  }
+
+  @Test
+  def attributeWithOption: Unit = {
+    val x = new UnprefixedAttribute("foo", Some(Text("bar")), Null)
+
+    assertEquals(Some(Text("bar")), x.get("foo"))
+    assertEquals(Text("bar"), x("foo"))
+    assertEquals(None, x.get("no_foo"))
+    assertEquals(null, x("no_foo"))
+
+    val attr1 = Some(Text("foo value"))
+    val attr2 = None
+    val y = <b foo={attr1} bar={attr2} />
+    assertEquals(Some(Text("foo value")), y.attributes.get("foo"))
+    assertEquals(Text("foo value"), y.attributes("foo"))
+    assertEquals(None, y.attributes.get("bar"))
+    assertEquals(null, y.attributes("bar"))
+
+    val z = new UnprefixedAttribute("foo", None, x)
+    assertEquals(None, z.get("foo"))
+  }
+
+  @Test
+  def attributeToString: Unit = {
+    val expected: String = """<b x="&amp;"/>"""
+    assertEquals(expected, (<b x="&amp;"/>).toString)
+    assertEquals(expected, (<b x={"&"}/>).toString)
+  }
+
+  @Test
+  def attributeOperator: Unit = {
+    val xml = <foo bar="apple" />
+    assertEquals("apple", xml \@ "bar")
+  }
+
+}

src/test/scala/scala/xml/JUnitAssertsForXML.scala

@@ -0,0 +1,8 @@
+package scala.xml
+
+object JUnitAssertsForXML {
+
+  private[xml] def assertEquals(expected: String, actual: NodeSeq): Unit =
+    org.junit.Assert.assertEquals(expected, actual.toString)
+
+}

src/test/scala/scala/xml/MetaDataTest.scala

@@ -0,0 +1,60 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Ignore
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+import org.junit.Assert.assertEquals
+
+class MetaDataTest {
+
+  @Test
+  def absentElementPrefixed1: Unit = {
+    // type ascription to help overload resolution pick the right variant
+    assertEquals(null: Object, Null("za://foo.com", TopScope, "bar"))
+    assertEquals(null, Null("bar"))
+  }
+
+  @Test
+  def absentElementPrefixed2: Unit = {
+    assertEquals(None, Null.get("za://foo.com", TopScope, "bar" ))
+    assertEquals(None, Null.get("bar"))
+  }
+
+  @Test
+  def presentElement1: Unit = {
+    val x = new PrefixedAttribute("zo","bar", new Atom(42), Null)
+    val s = new NamespaceBinding("zo","za://foo.com", TopScope)
+    assertEquals(new Atom(42), x("za://foo.com", s, "bar" ))
+    assertEquals(null, x("bar"))
+    assertEquals(Some(new Atom(42)), x.get("za://foo.com", s, "bar"))
+    assertEquals(None, x.get("bar"))
+  }
+
+  @Test
+  def presentElement2: Unit = {
+    val s = new NamespaceBinding("zo","za://foo.com", TopScope)
+    val x1 = new PrefixedAttribute("zo","bar", new Atom(42), Null)
+    val x = new UnprefixedAttribute("bar","meaning", x1)
+    assertEquals(null, x(null, s, "bar"))
+    assertEquals(Text("meaning"), x("bar"))
+    assertEquals(None, x.get(null, s, "bar" ))
+    assertEquals(Some(Text("meaning")), x.get("bar"))
+  }
+
+  @Test
+  def attributeExtractor: Unit = {
+    def domatch(x:Node): Node = {
+      x match {
+            case Node("foo", md @ UnprefixedAttribute(_, value, _), _*) if !value.isEmpty =>
+                 md("bar")(0)
+            case _ => new Atom(3)
+      }
+    }
+    val z =  <foo bar="gar"/>
+    val z2 = <foo/>
+    assertEquals(Text("gar"), domatch(z))
+    assertEquals(new Atom(3), domatch(z2))
+  }
+
+}

src/test/scala/scala/xml/PrintEmptyElementsTest.scala

@@ -0,0 +1,58 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Ignore
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+import JUnitAssertsForXML.assertEquals
+
+class PrintEmptyElementsTest {
+
+  @Test
+  def representEmptyXMLElementsInShortForm: Unit = {
+    val expected: String =
+      """|
+         |<hi/> <!-- literal short -->
+         |<there></there> <!-- literal long -->
+         |<guys who="you all"></guys> <!-- literal long with attribute-->
+         |<hows it="going"/> <!-- literal short with attribute -->
+         |<this>is pretty cool</this> <!-- literal not empty -->
+         |""".stripMargin
+    // the xml snippet is not indented because indentation affects pretty printing
+    // results
+    val actual: NodeSeq =
+<xml:group>
+<hi/> <!-- literal short -->
+<there></there> <!-- literal long -->
+<guys who="you all"></guys> <!-- literal long with attribute-->
+<hows it="going"/> <!-- literal short with attribute -->
+<this>is pretty cool</this> <!-- literal not empty -->
+</xml:group>
+    assertEquals(expected, actual)
+  }
+
+  @Test
+  def programmaticLong: Unit = {
+    assertEquals("<emptiness></emptiness> <!--programmatic long-->",
+      Elem(null, "emptiness", Null, TopScope, false) ++ Text(" ") ++ Comment("programmatic long"))
+  }
+
+  @Test
+  def programmaticShort: Unit = {
+    assertEquals("<vide/> <!--programmatic short-->",
+      Elem(null, "vide", Null, TopScope, true) ++ Text(" ") ++ Comment("programmatic short"))
+  }
+
+  @Test
+  def programmaticShortWithAttribute: Unit = {
+    assertEquals("""<elem attr="value"/> <!--programmatic short with attribute-->""",
+      Elem(null, "elem", Attribute("attr", Text("value"), Null), TopScope, true) ++ Text(" ") ++ Comment ("programmatic short with attribute"))
+  }
+
+  @Test
+  def programmaticLongWithAttribute: Unit = {
+    assertEquals("""<elem2 attr2="value2"></elem2> <!--programmatic long with attribute-->""",
+      Elem(null, "elem2", Attribute("attr2", Text("value2"), Null), TopScope, false) ++ Text(" ") ++ Comment ("programmatic long with attribute"))
+  }
+
+}

src/test/scala/scala/xml/UtilityTest.scala

@@ -0,0 +1,57 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Ignore
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+import org.junit.Assert.assertTrue
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertEquals
+
+class UtilityTest {
+
+  @Test
+  def isNameStart: Unit = {
+    assertTrue(Utility.isNameStart('b'))
+    assertFalse(Utility.isNameStart(':'))
+  }
+
+  @Test
+  def trim: Unit = {
+    val x = <foo>
+                 <toomuchws/>
+              </foo>
+    val y = xml.Utility.trim(x)
+    assertEquals(1, y match { case <foo><toomuchws/></foo> => 1 })
+
+    val x2 = <foo>
+      <toomuchws>  a b  b a  </toomuchws>
+    </foo>
+    val y2 = xml.Utility.trim(x2)
+    assertEquals(2, y2 match { case <foo><toomuchws>a b b a</toomuchws></foo> => 2 })
+  }
+
+  @Test
+  def aposEscaping: Unit = {
+    val z = <bar>''</bar>
+    val z1 = z.toString
+    assertEquals("<bar>''</bar>", z1)
+  }
+
+  @Test
+  def sort: Unit = {
+    val q = xml.Utility.sort(<a g='3' j='2' oo='2' a='2'/>)
+    assertEquals(" a=\"2\" g=\"3\" j=\"2\" oo=\"2\"", xml.Utility.sort(q.attributes).toString)
+    val pp = new xml.PrettyPrinter(80,5)
+    assertEquals("<a a=\"2\" g=\"3\" j=\"2\" oo=\"2\"/>", pp.format(q))
+  }
+
+  @Test
+  def issue777: Unit = {
+    <hi>
+      <there/>
+      <guys/>
+    </hi>.hashCode // Bug #777
+  }
+
+}

src/test/scala/scala/xml/XMLEmbeddingTest.scala

@@ -0,0 +1,23 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Ignore
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+import org.junit.Assert.assertTrue
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertEquals
+
+class XMLEmbeddingTest {
+
+  @Test
+  def basic: Unit = {
+    val ya = <x>{{</x>
+    assertEquals("{", ya.text)
+    val ua = <x>}}</x>
+    assertEquals("}", ua.text)
+    val za = <x>{{}}{{}}{{}}</x>
+    assertEquals("{}{}{}", za.text)
+  }
+
+}