Modify exit() to throw an object and catch it.

* Changed exit from throwing an text string to throwing
  an Error-derived object encapsulating the exit status.
  Then catch it in 'callMain' and return the status.

  Enable this functionality by setting CATCH_EXIT_CODE in settings.js

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index b372ee51..06069da2 100644
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -4531,6 +4531,19 @@ Child2:9
       except:
         pass
 
+    def test_exit_status(self):
+      Settings.CATCH_EXIT_CODE = 1
+
+      src = '''
+        #include <stdio.h>
+        #include <stdlib.h>
+        int main()
+        {
+          printf("hello, world!\\n");
+          exit(118); // Unusual exit status to make sure it's working!
+        }
+      '''
+      self.do_run(src, 'hello, world!\nExit Status: 118')
 
   # Generate tests for all our compilers
   def make_run(name, compiler, llvm_opts, embetter, quantum_size, typed_arrays):