improve test coverage

tests/test_formatters.py

@@ -0,0 +1,39 @@
+import pyexcel as pe
+import pyexcel.ext.xl
+import datetime
+import os
+
+
+class TestDateFormat:
+    def test_reading_date_format(self):
+        """
+        date     time
+        25/12/14 11:11:11
+        25/12/14 12:11:11
+        01/01/15 13:13:13
+        0.0      0.0        
+        """
+        r = pe.Reader(os.path.join("tests", "fixtures", "date_field.xls"))
+        assert isinstance(r[1,0], datetime.date) == True
+        assert r[1,0].strftime("%d/%m/%y") == "25/12/14"
+        assert isinstance(r[1,1], datetime.time) == True
+        assert r[1,1].strftime("%H:%M:%S") == "11:11:11"
+        assert r[4,0].strftime("%d/%m/%Y") == "01/01/1900"
+        assert r[4,1].strftime("%H:%M:%S") == "00:00:00"
+
+    def test_writing_date_format(self):
+        excel_filename = "testdateformat.xls"
+        data = [[datetime.date(2014,12,25),
+                datetime.time(11,11,11),
+                datetime.datetime(2014,12,25,11,11,11)]]
+        w = pe.Writer(excel_filename)
+        w.write_rows(data)
+        w.close()
+        r = pe.Reader(excel_filename)
+        assert isinstance(r[0,0], datetime.date) == True
+        assert r[0,0].strftime("%d/%m/%y") == "25/12/14"
+        assert isinstance(r[0,1], datetime.time) == True
+        assert r[0,1].strftime("%H:%M:%S") == "11:11:11"
+        assert isinstance(r[0,2], datetime.date) == True
+        assert r[0,2].strftime("%d/%m/%y") == "25/12/14"
+        os.unlink(excel_filename)