From 98de31e836a04ccc8f5f9acd90b9ba0803a24ab5 Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Fri, 18 Jun 2010 03:44:25 +0300 Subject: 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. --- .../test/small_tests_SUITE_data/src/inf_loop2.erl | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 lib/dialyzer/test/small_tests_SUITE_data/src/inf_loop2.erl (limited to 'lib/dialyzer/test/small_tests_SUITE_data/src/inf_loop2.erl') diff --git a/lib/dialyzer/test/small_tests_SUITE_data/src/inf_loop2.erl b/lib/dialyzer/test/small_tests_SUITE_data/src/inf_loop2.erl new file mode 100644 index 0000000000..fbbec10a55 --- /dev/null +++ b/lib/dialyzer/test/small_tests_SUITE_data/src/inf_loop2.erl @@ -0,0 +1,23 @@ +%%--------------------------------------------------------------------- +%% Module that went into an infinite loop when trying to assign types. +%% +%% What was happening is that for functions which are in an SCC but all +%% return none(), a second chance was given to them by the analysis to +%% see whether they return none() because they are involved in an loop +%% (presumably server-related) and could be assigned the type unit() +%% instead. The problem is that when the really return none() for some +%% other reason (an error such in this case) then we will again find +%% none() and try again for unit(), thereby entering an infinite loop. +%% The issue was resolved on May 17th by adding an appropriate boolean +%% parameter to dialyzer_typesig:solve_scc() function. +%%--------------------------------------------------------------------- +-module(inf_loop2). + +-export([test/0]). + +test() -> + lists:reverse(gazonk), + loop(). + +loop() -> + test(). -- cgit v1.2.3