TEST: Disable tests that depend on Slycot if absent

slivingston · slivingston · commit a7e0bba580d4 · 2017-02-17T11:14:10.000-05:00
testBalredMatchDC, testGramRc, testGramRo which were introduced in PR #118 use functions that depend on Slycot, so the tests should be skipped if it is not found.
diff --git a/control/tests/modelsimp_test.py b/control/tests/modelsimp_test.py
@@ -107,6 +107,7 @@ def testBalredTruncate(self):
         np.testing.assert_array_almost_equal(rsys.C, Crtrue,decimal=4)
         np.testing.assert_array_almost_equal(rsys.D, Drtrue,decimal=4)
 
+    @unittest.skipIf(not slycot_check(), "slycot not installed")
     def testBalredMatchDC(self):
         #controlable canonical realization computed in matlab for the transfer function:
         # num = [1 11 45 32], den = [1 15 60 200 60]
diff --git a/control/tests/statefbk_test.py b/control/tests/statefbk_test.py
@@ -71,6 +71,7 @@ def testGramWc(self):
         Wc = gram(sys,'c')
         np.testing.assert_array_almost_equal(Wc, Wctrue)
 
+    @unittest.skipIf(not slycot_check(), "slycot not installed")
     def testGramRc(self):
         A = np.matrix("1. -2.; 3. -4.")
         B = np.matrix("5. 6.; 7. 8.")
@@ -103,6 +104,7 @@ def testGramWo2(self):
         Wo = gram(sys,'o')
         np.testing.assert_array_almost_equal(Wo, Wotrue)
 
+    @unittest.skipIf(not slycot_check(), "slycot not installed")
     def testGramRo(self):
         A = np.matrix("1. -2.; 3. -4.")
         B = np.matrix("5. 6.; 7. 8.")
