--- a/python/testc3.py	Fri May 24 20:45:03 2013 +0200
+++ b/python/testc3.py	Sat May 25 14:26:25 2013 +0200
@@ -138,10 +138,10 @@
       self.diag.clear()
       ir = self.builder.build(snippet)
       assert len(self.diag.diags) == 3
-      assert self.diag.diags[0].loc.row == 8
-      assert self.diag.diags[1].loc.row == 9
-      assert self.diag.diags[2].loc.row == 10
-      assert ir == None
+      self.assertEqual(self.diag.diags[0].loc.row, 8)
+      self.assertEqual(self.diag.diags[1].loc.row, 9)
+      self.assertEqual(self.diag.diags[2].loc.row, 10)
+      self.assertFalse(ir)
    def testEmpty(self):
       snippet = """
       package A
@@ -159,8 +159,8 @@
       """
       self.diag.clear()
       self.builder.build(snippet)
-      assert len(self.diag.diags) == 1
-      assert self.diag.diags[0].loc.row == 5
+      self.assertEqual(len(self.diag.diags), 1)
+      self.assertEqual(self.diag.diags[0].loc.row, 5)
    def testWhile(self):
       snippet = """
       package tstwhile;
@@ -171,11 +171,14 @@
          while (i < 1054)
          {
             i = i + 3;
-            a = a + i
+            a = a + i;
          }
       }
       """
-      self.builder.build(snippet)
+      ir = self.builder.build(snippet)
+      if not ir:
+        self.diag.printErrors(snippet)
+      self.assertTrue(ir)
    def testIf(self):
       snippet = """
       package tstIFF;
@@ -198,14 +201,14 @@
          return b;
       }
       """
-      self.builder.build(snippet)
+      ir = self.builder.build(snippet)
+      self.assertTrue(ir)
    def test2(self):
       # testsrc2 is valid code:
       self.diag.clear()
       ir = self.builder.build(testsrc2)
-      print(self.diag.diags)
       assert ir
-      ir.dump()
+      #ir.dump()
 
 if __name__ == '__main__':
    do()