Skip test if redbaron is not installed

scripts/test_import_migration.py

@@ -2,30 +2,29 @@
 #
 # Author: Keyan Pishdadian
 import pytest
-from redbaron import RedBaron
+redbaron = pytest.importorskip("redbaron")
 import flaskext_migrate as migrate
 
-
 def test_simple_from_import():
-    red = RedBaron("from flask.ext import foo")
+    red = redbaron.RedBaron("from flask.ext import foo")
     output = migrate.fix_tester(red)
     assert output == "import flask_foo as foo"
 
 
 def test_from_to_from_import():
-    red = RedBaron("from flask.ext.foo import bar")
+    red = redbaron.RedBaron("from flask.ext.foo import bar")
     output = migrate.fix_tester(red)
     assert output == "from flask_foo import bar as bar"
 
 
 def test_multiple_import():
-    red = RedBaron("from flask.ext.foo import bar, foobar, something")
+    red = redbaron.RedBaron("from flask.ext.foo import bar, foobar, something")
     output = migrate.fix_tester(red)
     assert output == "from flask_foo import bar, foobar, something"
 
 
 def test_multiline_import():
-    red = RedBaron("from flask.ext.foo import \
+    red = redbaron.RedBaron("from flask.ext.foo import \
                     bar,\
                     foobar,\
                     something")
@@ -34,37 +33,37 @@ def test_multiline_import():
 
 
 def test_module_import():
-    red = RedBaron("import flask.ext.foo")
+    red = redbaron.RedBaron("import flask.ext.foo")
     output = migrate.fix_tester(red)
     assert output == "import flask_foo"
 
 
 def test_named_module_import():
-    red = RedBaron("import flask.ext.foo as foobar")
+    red = redbaron.RedBaron("import flask.ext.foo as foobar")
     output = migrate.fix_tester(red)
     assert output == "import flask_foo as foobar"
 
 
 def test_named_from_import():
-    red = RedBaron("from flask.ext.foo import bar as baz")
+    red = redbaron.RedBaron("from flask.ext.foo import bar as baz")
     output = migrate.fix_tester(red)
     assert output == "from flask_foo import bar as baz"
 
 
 def test_parens_import():
-    red = RedBaron("from flask.ext.foo import (bar, foo, foobar)")
+    red = redbaron.RedBaron("from flask.ext.foo import (bar, foo, foobar)")
     output = migrate.fix_tester(red)
     assert output == "from flask_foo import (bar, foo, foobar)"
 
 
 def test_function_call_migration():
-    red = RedBaron("flask.ext.foo(var)")
+    red = redbaron.RedBaron("flask.ext.foo(var)")
     output = migrate.fix_tester(red)
     assert output == "flask_foo(var)"
 
 
 def test_nested_function_call_migration():
-    red = RedBaron("import flask.ext.foo\n\n"
+    red = redbaron.RedBaron("import flask.ext.foo\n\n"
                    "flask.ext.foo.bar(var)")
     output = migrate.fix_tester(red)
     assert output == ("import flask_foo\n\n"
@@ -72,6 +71,6 @@ def test_nested_function_call_migration():
 
 
 def test_no_change_to_import():
-    red = RedBaron("from flask import Flask")
+    red = redbaron.RedBaron("from flask import Flask")
     output = migrate.fix_tester(red)
     assert output == "from flask import Flask"