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authorRaphaël Barrois <raphael.barrois@polytechnique.org>2013-06-15 00:17:41 +0200
committerRaphaël Barrois <raphael.barrois@polytechnique.org>2013-06-15 00:17:41 +0200
commitfda40cb64041aacdb776e0b1f4f4a635bdc9d70b (patch)
treec0d30d702c6886e5f8542daffb7aef080137ed0b /tests
parent1ba20b0ed7b920fa2d161df94a0dda3d93b1e14b (diff)
downloadfactory-boy-fda40cb64041aacdb776e0b1f4f4a635bdc9d70b.tar
factory-boy-fda40cb64041aacdb776e0b1f4f4a635bdc9d70b.tar.gz
Add Iterator.reset() (Closes #63).
Diffstat (limited to 'tests')
-rw-r--r--tests/test_declarations.py21
-rw-r--r--tests/test_utils.py106
2 files changed, 127 insertions, 0 deletions
diff --git a/tests/test_declarations.py b/tests/test_declarations.py
index cd38dd2..9d54c59 100644
--- a/tests/test_declarations.py
+++ b/tests/test_declarations.py
@@ -107,6 +107,27 @@ class IteratorTestCase(unittest.TestCase):
self.assertEqual(2, it.evaluate(1, None, False))
self.assertRaises(StopIteration, it.evaluate, 2, None, False)
+ def test_reset_cycle(self):
+ it = declarations.Iterator([1, 2])
+ self.assertEqual(1, it.evaluate(0, None, False))
+ self.assertEqual(2, it.evaluate(1, None, False))
+ self.assertEqual(1, it.evaluate(2, None, False))
+ self.assertEqual(2, it.evaluate(3, None, False))
+ self.assertEqual(1, it.evaluate(4, None, False))
+ it.reset()
+ self.assertEqual(1, it.evaluate(5, None, False))
+ self.assertEqual(2, it.evaluate(6, None, False))
+
+ def test_reset_no_cycling(self):
+ it = declarations.Iterator([1, 2], cycle=False)
+ self.assertEqual(1, it.evaluate(0, None, False))
+ self.assertEqual(2, it.evaluate(1, None, False))
+ self.assertRaises(StopIteration, it.evaluate, 2, None, False)
+ it.reset()
+ self.assertEqual(1, it.evaluate(0, None, False))
+ self.assertEqual(2, it.evaluate(1, None, False))
+ self.assertRaises(StopIteration, it.evaluate, 2, None, False)
+
def test_getter(self):
it = declarations.Iterator([(1, 2), (1, 3)], getter=lambda p: p[1])
self.assertEqual(2, it.evaluate(0, None, False))
diff --git a/tests/test_utils.py b/tests/test_utils.py
index b353c9d..8c73935 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -20,6 +20,7 @@
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
+import itertools
from factory import utils
@@ -230,3 +231,108 @@ class ImportObjectTestCase(unittest.TestCase):
def test_invalid_module(self):
self.assertRaises(ImportError, utils.import_object,
'this-is-an-invalid-module', '__name__')
+
+
+class ResetableIteratorTestCase(unittest.TestCase):
+ def test_no_reset(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ self.assertEqual([1, 2, 3], list(i))
+
+ def test_no_reset_new_iterator(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+
+ iterator2 = iter(i)
+ self.assertEqual(3, next(iterator2))
+
+ def test_infinite(self):
+ i = utils.ResetableIterator(itertools.cycle([1, 2, 3]))
+ iterator = iter(i)
+ values = [next(iterator) for _i in range(10)]
+ self.assertEqual([1, 2, 3, 1, 2, 3, 1, 2, 3, 1], values)
+
+ def test_reset_simple(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+
+ def test_reset_at_begin(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ iterator = iter(i)
+ i.reset()
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+
+ def test_reset_at_end(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+
+ def test_reset_after_end(self):
+ i = utils.ResetableIterator([1, 2, 3])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+ self.assertRaises(StopIteration, next, iterator)
+
+ i.reset()
+ # Previous iter() has stopped
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+
+ def test_reset_twice(self):
+ i = utils.ResetableIterator([1, 2, 3, 4, 5])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+ self.assertEqual(4, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+ self.assertEqual(4, next(iterator))
+
+ def test_reset_shorter(self):
+ i = utils.ResetableIterator([1, 2, 3, 4, 5])
+ iterator = iter(i)
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+ self.assertEqual(4, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+
+ i.reset()
+ self.assertEqual(1, next(iterator))
+ self.assertEqual(2, next(iterator))
+ self.assertEqual(3, next(iterator))
+ self.assertEqual(4, next(iterator))
+