Add (failing) test for #11247

testsuite/tests/runghc/Makefile

@@ -10,3 +10,15 @@ T7859:
 #compile.
 T8601:
 	-echo 'main = putStrLn "Hello World!"' | '$(RUNGHC)' -f '$(TEST_HC)' -hide-package --ghc-arg=bytestring
+
+T11247:
+	# Should all work:
+	'$(RUNGHC)' T11247-hs
+	'$(RUNGHC)' T11247-hs.hs
+	'$(RUNGHC)' T11247-lhs
+	'$(RUNGHC)' T11247-lhs.lhs
+	'$(RUNGHC)' T11247-no-extension
+	# Should print a "nice" error message that it can't find "foo." and
+	# "foo.bar"
+	-'$(RUNGHC)' foo.
+	-'$(RUNGHC)' foo.bar

testsuite/tests/runghc/T11247-hs.hs

+main = print "hello from a .hs file"

testsuite/tests/runghc/T11247-lhs.lhs

+> main = print "hello from a .lhs file"

testsuite/tests/runghc/T11247-no-extension

+main = print "hello from a file without extension"

testsuite/tests/runghc/T11247.stderr

+target ‘foo.’ is not a module name or a source file
+target ‘foo.bar’ is not a module name or a source file

testsuite/tests/runghc/T11247.stdout

+"hello from a .hs file"
+"hello from a .hs file"
+"hello from a .lhs file"
+"hello from a .lhs file"
+"hello from a file without extension"

testsuite/tests/runghc/all.T

@@ -3,3 +3,6 @@ test('T7859', req_interp, run_command,
 
 test('T8601', req_interp, run_command,
      ['$MAKE --no-print-directory -s T8601'])
+
+test('T11247', [req_interp, expect_broken(11247)], run_command,
+     ['$MAKE --no-print-directory -s T11247'])