tst: add generation for removing a test when package is not found

Author: satra

tools/checkspecs.py

@@ -186,11 +186,37 @@ def test_specs(self, uri):
         bad_specs = []
         for c in classes:
             __import__(uri)
+            pkg_check = None
             try:
                 with warnings.catch_warnings():
                     warnings.simplefilter("ignore")
                     classinst = sys.modules[uri].__dict__[c]
+                    pkg_name = uri.split('.')[2]
+                    have_pkg = 'have_%s' % pkg_name
+                    no_pkg = 'no_%s' % pkg_name
+                    base_uri = '.'.join(uri.split('.')[:3])
+                    if have_pkg in sys.modules[uri].__dict__:
+                        pkg_check = True
+                        pkg_check_uri = uri
+                        test_func = have_pkg
+                        test_name = '@skipif(%s==False)' % have_pkg
+                    if no_pkg in sys.modules[uri].__dict__:
+                        pkg_check = True
+                        pkg_check_uri = uri
+                        test_func = no_pkg
+                        test_name = '@skipif(%s)' % no_pkg
+                    if have_pkg in sys.modules[base_uri].__dict__:
+                        pkg_check = True
+                        pkg_check_uri = base_uri
+                        test_func = have_pkg
+                        test_name = '@skipif(%s==False)' % have_pkg
+                    if no_pkg in sys.modules[base_uri].__dict__:
+                        pkg_check = True
+                        pkg_check_uri = base_uri
+                        test_func = no_pkg
+                        test_name = '@skipif(%s)' % no_pkg
             except Exception as inst:
+                print inst
                 continue
 
             if not issubclass(classinst, BaseInterface):
@@ -208,8 +234,13 @@ def test_specs(self, uri):
                     cmd = ['# AUTO-GENERATED by tools/checkspecs.py - DO NOT EDIT',
                            'from nipype.testing import assert_equal',
                            'from %s import %s' % (uri, c),
-                           '',
-                           'def test_%s_inputs():' % c]
+                           '']
+                    if pkg_check:
+                        cmd.append('from nipype.testing import skipif')
+                        cmd.append('from %s import %s' % (pkg_check_uri,
+                                                          test_func))
+                        cmd.append(test_name)
+                    cmd.append('def test_%s_inputs():' % c)
                     input_fields = ''
                     for traitname, trait in sorted(classinst.input_spec().traits(transient=None).items()):
                         input_fields += '%s=dict(' % traitname
@@ -232,6 +263,8 @@ def test_specs(self, uri):
         for metakey, value in metadata.items():
             yield assert_equal, getattr(inputs.traits()[key], metakey), value"""]
                     fp.writelines('\n'.join(cmd) + '\n\n')
+            else:
+                print('%s has nonautotest' % c)
 
             for traitname, trait in sorted(classinst.input_spec().traits(transient=None).items()):
                 for key in sorted(trait.__dict__):