[stdlib] Adds Update(...) and FixedWindow(...) the the standard nodes provided with bonobo.

tests/nodes/io/test_json.py

@@ -0,0 +1,66 @@
+import pytest
+
+from bonobo import JsonReader, JsonWriter, settings
+from bonobo import LdjsonReader, LdjsonWriter
+from bonobo.execution.contexts.node import NodeExecutionContext
+from bonobo.util.testing import FilesystemTester, BufferingNodeExecutionContext
+
+json_tester = FilesystemTester('json')
+json_tester.input_data = '''[{"x": "foo"},{"x": "bar"}]'''
+
+
+def test_write_json_ioformat_arg0(tmpdir):
+    fs, filename, services = json_tester.get_services_for_writer(tmpdir)
+
+    with pytest.raises(ValueError):
+        JsonWriter(filename, ioformat=settings.IOFORMAT_ARG0)
+
+    with pytest.raises(ValueError):
+        JsonReader(filename, ioformat=settings.IOFORMAT_ARG0),
+
+
+@pytest.mark.parametrize('add_kwargs', (
+    {},
+    {
+        'ioformat': settings.IOFORMAT_KWARGS,
+    },
+))
+def test_write_json_kwargs(tmpdir, add_kwargs):
+    fs, filename, services = json_tester.get_services_for_writer(tmpdir)
+
+    with NodeExecutionContext(JsonWriter(filename, **add_kwargs), services=services) as context:
+        context.write_sync({'foo': 'bar'})
+
+    with fs.open(filename) as fp:
+        assert fp.read() == '[{"foo": "bar"}]'
+
+
+stream_json_tester = FilesystemTester('json')
+stream_json_tester.input_data = '''{"foo": "bar"}\n{"baz": "boz"}'''
+
+
+def test_read_stream_json(tmpdir):
+    fs, filename, services = stream_json_tester.get_services_for_reader(tmpdir)
+    with BufferingNodeExecutionContext(LdjsonReader(filename), services=services) as context:
+        context.write_sync(tuple())
+        actual = context.get_buffer()
+
+    expected = [{"foo": "bar"}, {"baz": "boz"}]
+    assert expected == actual
+
+
+def test_write_stream_json(tmpdir):
+    fs, filename, services = stream_json_tester.get_services_for_reader(tmpdir)
+
+    with BufferingNodeExecutionContext(LdjsonWriter(filename), services=services) as context:
+        context.write_sync(
+            {
+                'foo': 'bar'
+            },
+            {'baz': 'boz'},
+        )
+
+    expected = '''{"foo": "bar"}\n{"baz": "boz"}\n'''
+    with fs.open(filename) as fin:
+        actual = fin.read()
+    assert expected == actual