Test specific parts of SymPy

Author: ShikharJ

.travis.yml

@@ -26,8 +26,8 @@ env:
   ## executed.
   matrix:
   # Debug builds:
-  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="2.7" TRIGGER_FEEDSTOCK="yes"
-  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="3.6"
+  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="2.7" TRIGGER_FEEDSTOCK="yes" TEST_SYMPY="yes"
+  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="3.6" TEST_SYMPY="yes"
 
   # Release builds:
   - PYTHON_VERSION="2.7" BUILD_SHARED_LIBS="yes"

bin/install_travis.sh

@@ -9,6 +9,10 @@ if [[ "${WITH_SYMPY}" != "no" ]]; then
     export conda_pkgs="${conda_pkgs} sympy";
 fi
 
+if [[ "${TEST_SYMPY}" == "yes" ]]; then
+    export TEST_SYMPY = 1;
+fi
+
 if [[ "${WITH_NUMPY}" != "no" ]]; then
     export conda_pkgs="${conda_pkgs} numpy";
 fi

bin/test_python.py

@@ -1,3 +1,23 @@
+import os
+TEST_SYMPY = os.getenv('TEST_SYMPY', '0')
+
 import symengine
 if not symengine.test():
     raise Exception('Tests failed')
+
+try:
+    import sympy
+    from sympy.core.cache import clear_cache
+    import atexit
+
+    atexit.register(clear_cache)
+    have_sympy = True
+except ImportError:
+    have_sympy = False
+
+if TEST_SYMPY and have_sympy:
+    print('Testing SYMPY')
+    if not sympy.test('sympy/physics/mechanics'):
+        raise Exception('Tests failed')
+    if not sympy.test('sympy/liealgebras'):
+        raise Exception('Tests failed')