Allow top line to be blank

Fixes #14

memegen/domain/text.py

@@ -9,7 +9,7 @@ def __getitem__(self, key):
         except (IndexError, ValueError):
             return ""
         else:
-            return part
+            return part.strip()
 
     def get_line(self, index):
         return self._format_line(self[index])
@@ -65,4 +65,7 @@ def _format_line(part):
 
     @staticmethod
     def _format_path(line):
-        return line.replace(' ', '-').lower()
+        if line == ' ':
+            return '_'
+        else:
+            return line.replace(' ', '-').lower()

memegen/test/test_domain_text.py

@@ -50,6 +50,10 @@ def test_lines_ignore_capital_after_sep(self):
         text = Text("hello-World")
         assert ["HELLO WORLD"] == text.lines
 
+    def test_lines_strip_spaces(self):
+        text = Text("  hello  World /    ")
+        assert ["HELLO   WORLD"] == text.lines
+
     def test_path(self):
         text = Text("hello/World")
         assert "hello/world" == text.path
@@ -65,3 +69,7 @@ def test_path_with_underscores(self):
     def test_path_with_case_changes(self):
         text = Text("withCaseChanges/InIT")
         assert "with-case-changes/in-it" == text.path
+
+    def test_path_strips_spaces(self):
+        text = Text("  with  spaces/  in it   / ")
+        assert "with--spaces/in-it" == text.path

tests/test_all.py

@@ -38,14 +38,22 @@ def test_get_links(self, client):
             hidden="http://localhost/aXcJaGVsbG8vd29ybGQJ.jpg",
         ) == load(response)
 
-    def test_get_links_with_1_line(self, client):
+    def test_get_links_with_top_only(self, client):
         response = client.get("/iw/hello")
         assert response.status_code == 200
         assert dict(
             visible="http://localhost/iw/hello.jpg",
             hidden="http://localhost/aXcJaGVsbG8J.jpg",
         ) == load(response)
 
+    def test_get_links_with_bottom_only(self, client):
+        response = client.get("/iw/_/hello")
+        assert response.status_code == 200
+        assert dict(
+            visible="http://localhost/iw/_/hello.jpg",
+            hidden="http://localhost/aXcJXy9oZWxsbwkJ.jpg",
+        ) == load(response)
+
     def test_get_links_redirects_to_dashes(self, client):
         response = client.get("/iw/HelloThere_World/How-areYOU")
         assert response.status_code == 302