adding the utils test

test/test_context.py

@@ -17,7 +17,7 @@ def setUp(self):
             os.environ.get('USERNAME') is None):
             try:
                 creds = json.loads(open('test/secret.json').read())
-            except FileNotFoundError:
+            except OSError:
                 print("Create a `secret.json` file by renaming "
                       "`secret.json.sample` to `secret.json` and updating "
                       "the credentials to match your environment.")
@@ -104,7 +104,7 @@ def test_cartocontext_write(self):
 
         # check if table exists
         resp = self.sql_client.send('''
-            SELECT * 
+            SELECT *
             FROM {table}
             LIMIT 0
             '''.format(table=self.test_write_table))

test/test_utils.py

@@ -0,0 +1,89 @@
+"""Unit tests for cartoframes.utils"""
+import unittest
+from cartoframes.utils import dict_items, cssify
+from cartoframes import styling
+from collections import OrderedDict
+# from cartoframes import styling
+
+class TestUtils(unittest.TestCase):
+    """Tests for functions in utils module"""
+    def setUp(self):
+        self.point_style = OrderedDict([(
+                            "#layer['mapnik::geometry_type'=1]", OrderedDict([
+                                ('marker-width', "6"),
+                                ('marker-fill', "yellow"),
+                                ('marker-fill-opacity', "1"),
+                                ('marker-allow-overlap', "true"),
+                                ('marker-line-width', "0.5"),
+                                ('marker-line-color', "black"),
+                                ("marker-line-opacity", "1")])
+                            )])
+        self.point_style_dict = dict_items(self.point_style)
+        self.point_stylecss = cssify(self.point_style)
+        self.point_values = []
+        for value in self.point_style_dict:
+            self.point_values.append(value)
+        self.polygon_style = OrderedDict([(
+                                "#layer['mapnik::geometry_type'=3]", OrderedDict([
+                                    ('polygon-fill', 'ramp([column], (#ffc6c4, #ee919b, #cc607d, #9e3963, #672044), quantiles)'),
+                                    ('polygon-opacity', '0.9'),
+                                    ('polygon-gamma', '0.5'),
+                                    ('line-color', '#FFF'),
+                                    ('line-width', '0.5'),
+                                    ('line-opacity', '0.25'),
+                                    ('line-comp-op', 'hard-light')])
+                                )])
+        self.polygon_style_dict = dict_items(self.polygon_style)
+        self.polygon_values = []
+        for value in self.polygon_style_dict:
+            self.polygon_values.append(value)
+
+        self.polygon_stylecss = cssify(self.polygon_style)
+
+        self.complex_style = OrderedDict([
+            ("#layer['mapnik::geometry_type'=1]", OrderedDict([
+                ('marker-width', "5"),
+                ('marker-fill', "yellow"),
+                ('marker-fill-opacity', '1'),
+                ('marker-allow-overlap', 'true'),
+                ('marker-line-width', '0.5'),
+                ('marker-line-color', "black"),
+                ('marker-line-opacity', '1')])),
+            ("#layer['mapnik::geometry_type'=2]", OrderedDict([
+                ('line-width', '1.5'),
+                ('line-color', "black")])),
+            ("#layer['mapnik::geometry_type'=3]", OrderedDict([
+                ('polygon-fill', "blue"),
+                ('polygon-opacity', '0.9'),
+                ('polygon-gamma', '0.5'),
+                ('line-color', '#FFF'),
+                ('line-width', '0.5'),
+                ('line-opacity', '0.25'),
+                ('line-comp-op', 'hard-light')]))
+        ])
+
+        self.complex_style_dict = dict_items(self.complex_style)
+        self.complex_values = []
+        for value in self.complex_style_dict:
+            self.complex_values.append(value)
+
+        self.complex_stylecss = cssify(self.complex_style)
+
+    def test_dict_items(self):
+        """utils.dict_items"""
+        # ensure correct formation of dict items from provided styling
+        self.assertEqual(self.polygon_values,
+                         self.polygon_style.items())
+        self.assertEqual(self.point_values,
+                         self.point_style.items())
+        self.assertEqual(self.complex_values,
+                         self.complex_style.items())
+
+    def test_cssify(self):
+        """utils.cssify"""
+        self.assertEqual(self.point_stylecss,
+                         "#layer['mapnik::geometry_type'=1] {  marker-width: 6; marker-fill: yellow; marker-fill-opacity: 1; marker-allow-overlap: true; marker-line-width: 0.5; marker-line-color: black; marker-line-opacity: 1;} ")
+        self.assertEqual(self.polygon_stylecss,
+                         "#layer['mapnik::geometry_type'=3] {  polygon-fill: ramp([column], (#ffc6c4, #ee919b, #cc607d, #9e3963, #672044), quantiles); polygon-opacity: 0.9; polygon-gamma: 0.5; line-color: #FFF; line-width: 0.5; line-opacity: 0.25; line-comp-op: hard-light;} ")
+        self.assertEqual(self.complex_stylecss,
+                         "#layer['mapnik::geometry_type'=1] {  marker-width: 5; marker-fill: yellow; marker-fill-opacity: 1; marker-allow-overlap: true; marker-line-width: 0.5; marker-line-color: black; marker-line-opacity: 1;} #layer['mapnik::geometry_type'=2] {  line-width: 1.5; line-color: black;} #layer['mapnik::geometry_type'=3] {  polygon-fill: blue; polygon-opacity: 0.9; polygon-gamma: 0.5; line-color: #FFF; line-width: 0.5; line-opacity: 0.25; line-comp-op: hard-light;} ")