test: add divider

m-labs · Sep 18, 2015 · 0a55ef5 · 0a55ef5
1 parent ec1d4ed
commit 0a55ef5
Showing 1 changed file with 26 additions and 0 deletions.
diff --git a/migen/test/test_divider.py b/migen/test/test_divider.py
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+import unittest
+
+from migen import *
+from migen.genlib.divider import Divider
+from migen.test.support import SimCase
+
+
+class DivisionCase(SimCase, unittest.TestCase):
+    class TestBench(Module):
+        def __init__(self):
+            self.submodules.dut = Divider(4)
+
+    def test_division(self):
+        def gen():
+            for dividend in range(16):
+                for divisor in range(1, 16):
+                    yield self.tb.dut.dividend_i, dividend
+                    yield self.tb.dut.divisor_i, divisor
+                    yield self.tb.dut.start_i, 1
+                    yield
+                    yield self.tb.dut.start_i, 0
+                    while not (yield self.tb.dut.ready_o):
+                        yield
+                    self.assertEqual((yield self.tb.dut.quotient_o), dividend//divisor)
+                    self.assertEqual((yield self.tb.dut.remainder_o), dividend%divisor)
+        self.run_with(gen())