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-rw-r--r--test/files/neg/t5878.check13
-rw-r--r--test/files/neg/t5878.scala6
-rw-r--r--test/files/run/rawstrings.check1
-rw-r--r--test/files/run/rawstrings.scala3
4 files changed, 23 insertions, 0 deletions
diff --git a/test/files/neg/t5878.check b/test/files/neg/t5878.check
new file mode 100644
index 0000000000..50dba0d272
--- /dev/null
+++ b/test/files/neg/t5878.check
@@ -0,0 +1,13 @@
+t5878.scala:1: error: value class may not unbox to itself
+case class Foo(x: Bar) extends AnyVal
+ ^
+t5878.scala:2: error: value class may not unbox to itself
+case class Bar(x: Foo) extends AnyVal
+ ^
+t5878.scala:4: error: value class may not unbox to itself
+class Foo1(val x: Bar1) extends AnyVal
+ ^
+t5878.scala:5: error: value class may not unbox to itself
+class Bar1(val x: Foo1) extends AnyVal
+ ^
+four errors found
diff --git a/test/files/neg/t5878.scala b/test/files/neg/t5878.scala
new file mode 100644
index 0000000000..b4e33627ef
--- /dev/null
+++ b/test/files/neg/t5878.scala
@@ -0,0 +1,6 @@
+case class Foo(x: Bar) extends AnyVal
+case class Bar(x: Foo) extends AnyVal
+
+class Foo1(val x: Bar1) extends AnyVal
+class Bar1(val x: Foo1) extends AnyVal
+
diff --git a/test/files/run/rawstrings.check b/test/files/run/rawstrings.check
new file mode 100644
index 0000000000..36e63594df
--- /dev/null
+++ b/test/files/run/rawstrings.check
@@ -0,0 +1 @@
+[\n\t'"$]
diff --git a/test/files/run/rawstrings.scala b/test/files/run/rawstrings.scala
new file mode 100644
index 0000000000..9df64f6625
--- /dev/null
+++ b/test/files/run/rawstrings.scala
@@ -0,0 +1,3 @@
+object Test extends App {
+ println(raw"[\n\t'${'"'}$$]")
+}