Merge pull request #199 from isuruf/flint

 Test Flint INTEGER_CLASS

Author: isuruf

.travis.yml

@@ -35,7 +35,7 @@ env:
   - PYTHON_VERSION="3.3" WITH_MPC="yes"
   - PYTHON_VERSION="3.4" WITH_MPFR="yes"
   - PYTHON_VERSION="3.5" WITH_MPC="yes"
-  - PYTHON_VERSION="3.6" WITH_MPC="yes"
+  - PYTHON_VERSION="3.6" WITH_MPC="yes" INTEGER_CLASS="flint" WITH_FLINT="yes"
 
 matrix:
   exclude:
@@ -78,7 +78,7 @@ matrix:
     - env: BUILD_TYPE="Debug" PYTHON_VERSION="2.7" WITH_NUMPY="no"
       compiler: gcc
       os: osx
-    - env: BUILD_TYPE="Release" PYTHON_VERSION="3.5"
+    - env: BUILD_TYPE="Release" PYTHON_VERSION="3.5" INTEGER_CLASS="flint" WITH_FLINT="yes"
       compiler: gcc
       os: osx
     - env: BUILD_TYPE="Release" WITH_SAGE="yes" WITH_MPC="yes" PYTHON_VERSION="2.7"

symengine/tests/test_ntheory.py

@@ -37,9 +37,15 @@ def test_gcd_ext():
     assert p == q * 6 + r * 9
     (q, r, p) = gcd_ext(-15, 10)
     assert p == q * -15 + r * 10
-    assert gcd_ext(2, 3) == (-1, 1, 1)
-    assert gcd_ext(10, 12) == (-1, 1, 2)
-    assert gcd_ext(100, 2004) == (-20, 1, 4)
+    (q, r, p) = gcd_ext(2, 3)
+    assert p == q * 2 + r * 3
+    assert p == 1
+    (q, r, p) = gcd_ext(10, 12)
+    assert p == q * 10 + r * 12
+    assert p == 2
+    (q, r, p) = gcd_ext(100, 2004)
+    assert p == q * 100 + r * 2004
+    assert p == 4
 
 
 def test_mod():