Merge pull request #4017 from lrytz/t6541

SI-6541 valid wildcard existentials for case-module-unapply

1 files changed, 16 insertions, 0 deletions

diff --git a/test/junit/scala/tools/nsc/settings/SettingsTest.scala b/test/junit/scala/tools/nsc/settings/SettingsTest.scala
index eda0c27834..96f83c4c2f 100644
--- a/test/junit/scala/tools/nsc/settings/SettingsTest.scala
+++ b/test/junit/scala/tools/nsc/settings/SettingsTest.scala
@@ -164,4 +164,20 @@ class SettingsTest {
     assertThrows[IllegalArgumentException](check("-m:a,b,-ab")(_ => true), _ contains "'ab' cannot be negated")
     assertThrows[IllegalArgumentException](check("-m:a,ac,-uber,uber")(_ => true), _ contains "'uber' cannot be negated")
   }
+
+  @Test def xSourceTest(): Unit = {
+    def check(expected: String, args: String*): Unit = {
+      val s = new MutableSettings(msg => throw new IllegalArgumentException(msg))
+      val (_, residual) = s.processArguments(args.toList, processAll = true)
+      assert(residual.isEmpty)
+      assertTrue(s.source.value == ScalaVersion(expected))
+    }
+    check(expected = "2.11.0") // default
+    check(expected = "2.11.0", "-Xsource:2.11")
+    check(expected = "2.10",   "-Xsource:2.10.0")
+    check(expected = "2.12",   "-Xsource:2.12")
+    assertThrows[IllegalArgumentException](check(expected = "2.11", "-Xsource"), _ == "-Xsource requires an argument, the syntax is -Xsource:<version>")
+    assertThrows[IllegalArgumentException](check(expected = "2.11", "-Xsource", "2.11"), _ == "-Xsource requires an argument, the syntax is -Xsource:<version>")
+    assertThrows[IllegalArgumentException](check(expected = "2.11", "-Xsource:2.invalid"), _ contains "There was a problem parsing 2.invalid")
+  }
 }