Rewrite of automatic doctests for nonpackages

src/sage/doctest/control.py

@@ -259,6 +259,12 @@ def __init__(self, options, args):
                         if versions[0] == versions[1]:
                             options.optional.add(pkg)
 
+                if 'nonpackages' in options.optional:
+                    options.optional.discard('nonpackages')
+                    from .nonpackages import available_nonpackages
+                    for pkg in available_nonpackages:
+                        options.optional.add(pkg)
+
                 # Check that all tags are valid
                 for o in options.optional:
                     if not optionaltag_regex.search(o):

src/sage/doctest/nonpackages.py

@@ -0,0 +1,121 @@
+"""
+Tests for Available Nonpackages
+
+This module contains tests to make up a list of available nonpackages (external softwares) that Sage interfaces.
+
+AUTHORS:
+
+- Kwankyu Lee (2016-03-09) -- initial version.
+"""
+
+#*****************************************************************************
+#       Copyright (C) 2016 KWANKYU LEE <ekwankyu@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#                  http://www.gnu.org/licenses/
+#*****************************************************************************
+
+# The test for a nonpackage xxx has the name `test_xxx` and checks 
+# the system has the software xxx installed and available, and 
+# returns `True` if affirmative. If you write a new test, then insert 
+# also an appropriate line in the function `test_nonpackages` at the end.
+
+def test_latex():
+    from sage.misc.latex import have_latex
+    if have_latex():
+        return True
+    return False
+
+def test_magma():
+    from sage.interfaces.magma import magma
+    try:
+        magma(1)
+        return True
+    except Exception:
+        return False 
+
+def test_matlab():
+    from sage.interfaces.matlab import matlab
+    try:
+        matlab(1)
+        return True
+    except Exception:
+        return False 
+
+def test_mathematica():
+    from sage.interfaces.mathematica import mathematica
+    try:
+        mathematica(1)
+        return True
+    except Exception:
+        return False  
+
+def test_macaulay2():
+    from sage.interfaces.macaulay2 import macaulay2
+    try:
+        macaulay2(1)
+        return True
+    except Exception:
+        return False   
+
+def test_octave():
+    from sage.interfaces.octave import octave
+    try:
+        octave(1)
+        return True
+    except Exception:
+        return False  
+
+def test_scilab():
+    from sage.interfaces.scilab import scilab
+    try:
+        scilab(1)
+        return True
+    except Exception:
+        return False      
+
+def test_maple():
+    from sage.interfaces.maple import maple
+    try:
+        maple(1)
+        return True
+    except Exception:
+        return False 
+
+def test_cplex():
+    from sage.numerical.mip import MixedIntegerLinearProgram
+    try:
+        MixedIntegerLinearProgram(solver='cplex')
+        return True
+    except Exception:
+        return False
+
+def test_gurobi():
+    from sage.numerical.mip import MixedIntegerLinearProgram
+    try:
+        MixedIntegerLinearProgram(solver='gurobi')
+        return True
+    except Exception:
+        return False   
+
+def test_nonpackages():
+    pkgs = list()
+    if test_latex(): pkgs.append('latex')
+    if test_magma(): pkgs.append('magma')
+    if test_matlab(): pkgs.append('matlab')     
+    if test_mathematica(): pkgs.append('mathematica')  
+    if test_macaulay2(): pkgs.append('macaulay2')  
+    if test_octave(): pkgs.append('octave')  
+    if test_scilab(): pkgs.append('scilab')  
+    if test_maple(): pkgs.append('maple')
+    if test_cplex(): pkgs.append('cplex')  
+    if test_gurobi(): pkgs.append('gurobi')  
+    return pkgs
+
+available_nonpackages = test_nonpackages()
+
+
+