Minor fixes and update documentation. Preparing the upcoming 0.2 release.

tests/test_basicusage.py

@@ -0,0 +1,14 @@
+import pytest
+
+import bonobo as bb
+
+
+@pytest.mark.timeout(2)
+def test_run_graph_noop():
+    graph = bb.Graph(
+        bb.noop
+    )
+    assert len(graph) == 1
+
+    result = bb.run(graph, strategy='threadpool')
+    assert result