Reorganize and cleanup tests

llvm/tests/test_exact.py

@@ -0,0 +1,37 @@
+import unittest
+from llvm.core import (Module, Type, Builder)
+from .support import TestCase, tests
+
+class TestExact(TestCase):
+    def make_module(self):
+        mod = Module.new('asdfa')
+        fnty = Type.function(Type.void(), [Type.int()] * 2)
+        func = mod.add_function(fnty, 'foo')
+        bldr = Builder.new(func.append_basic_block(''))
+        return mod, func, bldr
+
+    def has_exact(self, inst, op):
+        self.assertTrue(('%s exact' % op) in str(inst), "exact flag does not work")
+
+    def _test_template(self, opf, opname):
+        mod, func, bldr = self.make_module()
+        a, b = func.args
+        self.has_exact(opf(bldr, a, b, exact=True), opname)
+
+    def test_udiv_exact(self):
+        self._test_template(Builder.udiv, 'udiv')
+
+    def test_sdiv_exact(self):
+        self._test_template(Builder.sdiv, 'sdiv')
+
+    def test_lshr_exact(self):
+        self._test_template(Builder.lshr, 'lshr')
+
+    def test_ashr_exact(self):
+        self._test_template(Builder.ashr, 'ashr')
+
+tests.append(TestExact)
+
+if __name__ == '__main__':
+    unittest.main()
+