[core] Still refactoring the core behaviour of bags, starting to be much simpler.

tests/util/test_collections.py

@@ -0,0 +1,30 @@
+from bonobo.util import sortedlist, ensure_tuple
+from bonobo.util.collections import tuplize
+
+
+def test_sortedlist():
+    l = sortedlist()
+    l.insort(2)
+    l.insort(1)
+    l.insort(3)
+    l.insort(2)
+    assert l == [1, 2, 2, 3]
+
+
+def test_ensure_tuple():
+    assert ensure_tuple('a') == ('a', )
+    assert ensure_tuple(('a', )) == ('a', )
+    assert ensure_tuple(()) is ()
+
+
+def test_tuplize():
+    tuplized_lambda = tuplize(lambda: [1, 2, 3])
+    assert tuplized_lambda() == (1, 2, 3)
+
+    @tuplize
+    def some_generator():
+        yield 'c'
+        yield 'b'
+        yield 'a'
+
+    assert some_generator() == ('c', 'b', 'a')