Test suites for Dialyzer

This is a transcription of most of the cvs.srv.it.uu.se:/hipe repository
dialyzer_tests into test suites that use the test server framework.

See README for information on how to use the included scripts for
modifications and updates.

When testing Dialyzer it's important that several OTP modules
are included in the plt. The suites takes care of that too.

1 files changed, 41 insertions, 0 deletions

diff --git a/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl b/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl
new file mode 100644
index 0000000000..e6e6693963
--- /dev/null
+++ b/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl
@@ -0,0 +1,41 @@
+%%-------------------------------------------------------------------
+%% File    : unused_cases.erl
+%% Author  : Kostis Sagonas <[email protected]>
+%% Description : Tests that Dialyzer warns whenever it finds unused
+%%		 case clauses -- even those that are catch all.
+%%
+%% Created : 21 Jan 2007 by Kostis Sagonas <[email protected]>
+%%-------------------------------------------------------------------
+
+-module(unused_cases).
+-export([test/0]).
+
+test() -> % dummy function to avoid exporting stuff
+  ok = unreachable_catchall(42),
+  ok = unreachable_middle(42),
+  ok = unreachable_final(42).
+
+unreachable_catchall(X) ->
+  case mk_pair(X) of
+    {_,_} -> ok;
+    OTHER -> {unreachable_catchall, OTHER}
+  end.
+
+unreachable_middle(X) ->
+  case is_positive(X) of
+    true  -> ok;
+    weird -> {unreachable_middle, weird};
+    false -> ok
+  end.
+
+unreachable_final(X) ->
+  case is_positive(X) of
+    true  -> ok;
+    false -> ok;
+    OTHER-> {unreachable_final, OTHER}
+  end.
+
+mk_pair(X) -> {X, X}.
+
+is_positive(X) when is_integer(X), X > 0 -> true;
+is_positive(X) when is_integer(X) -> false.