3 files changed, 25 insertions, 0 deletions
diff --git a/test/files/neg/forgot-interpolator.check b/test/files/neg/forgot-interpolator.check
new file mode 100644
index 0000000000..f6de4d7b3a
--- /dev/null
+++ b/test/files/neg/forgot-interpolator.check
@@ -0,0 +1,9 @@
+forgot-interpolator.scala:4: warning: looks like an interpolated String; did you forget the interpolator?
+  def f = "Put the $bippy in the $bippy!" // warn
+          ^
+forgot-interpolator.scala:14: warning: looks like an interpolated String; did you forget the interpolator?
+  def f = """Put the ${println("bippy")} in the bippy!""" // warn
+          ^
+error: No warnings can be incurred under -Xfatal-warnings.
+two warnings found
+one error found
diff --git a/test/files/neg/forgot-interpolator.flags b/test/files/neg/forgot-interpolator.flags
new file mode 100644
index 0000000000..7949c2afa2
--- /dev/null
+++ b/test/files/neg/forgot-interpolator.flags
@@ -0,0 +1 @@
+-Xlint -Xfatal-warnings
diff --git a/test/files/neg/forgot-interpolator.scala b/test/files/neg/forgot-interpolator.scala
new file mode 100644
index 0000000000..d67db82643
--- /dev/null
+++ b/test/files/neg/forgot-interpolator.scala
@@ -0,0 +1,15 @@
+class A {
+  val bippy = 123
+
+  def f = "Put the $bippy in the $bippy!" // warn
+}
+
+class B {
+  val dingus = 123
+
+  def f = "Put the $bippy in the $bippy!" // no warn
+}
+
+class C {
+  def f = """Put the ${println("bippy")} in the bippy!""" // warn
+}