add DateTime type for dublin core

lib/domain/dublin_core/dublin_core.dart

@@ -1,3 +1,4 @@
+import 'package:webfeed/util/datetime.dart';
 import 'package:webfeed/util/xml.dart';
 import 'package:xml/xml.dart';
 
@@ -8,9 +9,9 @@ class DublinCore {
   final String subject;
   final String publisher;
   final String contributor;
-  final String date;
-  final String created;
-  final String modified;
+  final DateTime date;
+  final DateTime created;
+  final DateTime modified;
   final String type;
   final String format;
   final String identifier;
@@ -51,9 +52,9 @@ class DublinCore {
       subject: findElementOrNull(element, "dc:subject")?.text,
       publisher: findElementOrNull(element, "dc:publisher")?.text,
       contributor: findElementOrNull(element, "dc:contributor")?.text,
-      date: findElementOrNull(element, "dc:date")?.text,
-      created: findElementOrNull(element, "dc:created")?.text,
-      modified: findElementOrNull(element, "dc:modified")?.text,
+      date: parseDateTime(findElementOrNull(element, "dc:date")?.text),
+      created: parseDateTime(findElementOrNull(element, "dc:created")?.text),
+      modified: parseDateTime(findElementOrNull(element, "dc:modified")?.text),
       type: findElementOrNull(element, "dc:type")?.text,
       format: findElementOrNull(element, "dc:format")?.text,
       identifier: findElementOrNull(element, "dc:identifier")?.text,

pubspec.yaml

@@ -1,5 +1,5 @@
 name: webfeed
-version: 0.4.3
+version: 0.4.2
 description: webfeed is a dart package for parsing RSS and Atom feeds. Media & DublinCore namespaces are also supported.
 author: Wito Chandra <wito.c.91@gmail.com>
 homepage: https://github.com/witochandra/webfeed

test/rss_test.dart

@@ -2,10 +2,9 @@ import 'dart:core';
 import 'dart:io';
 
 import 'package:test/test.dart';
-import 'package:webfeed/webfeed.dart';
-
-import 'package:webfeed/domain/rss_itunes_type.dart';
 import 'package:webfeed/domain/rss_itunes_episode_type.dart';
+import 'package:webfeed/domain/rss_itunes_type.dart';
+import 'package:webfeed/webfeed.dart';
 
 void main() {
   test("parse Invalid.xml", () {
@@ -72,7 +71,8 @@ void main() {
         "Lorem ipsum dolor sit amet, consectetur adipiscing elit");
     expect(feed.items.first.link, "https://foo.bar.news/1");
     expect(feed.items.first.guid, "https://foo.bar.news/1?guid");
-    expect(feed.items.first.pubDate, DateTime(2018, 03, 26, 14)); //Mon, 26 Mar 2018 14:00:00 PDT
+    expect(feed.items.first.pubDate,
+        DateTime(2018, 03, 26, 14)); //Mon, 26 Mar 2018 14:00:00 PDT
     expect(feed.items.first.categories.first.domain, "news");
     expect(feed.items.first.categories.first.value, "Lorem");
     expect(feed.items.first.author, "alice@foo.bar.news");
@@ -102,7 +102,8 @@ void main() {
     var item = feed.items.first;
     expect(item.title, null);
     expect(item.link, "http://www.foo.com");
-    expect(item.pubDate, DateTime(2001, 08, 27, 16, 08, 56)); //Mon, 27 Aug 2001 16:08:56 PST
+    expect(item.pubDate,
+        DateTime(2001, 08, 27, 16, 08, 56)); //Mon, 27 Aug 2001 16:08:56 PST
 
     expect(item.media.group.contents.length, 5);
     expect(item.media.group.credits.length, 2);
@@ -239,9 +240,9 @@ void main() {
     expect(feed.dc.description, "description");
     expect(feed.dc.publisher, "publisher");
     expect(feed.dc.contributor, "contributor");
-    expect(feed.dc.date, "2000-01-01T12:00+00:00");
-    expect(feed.dc.created, "2000-01-01T12:00+00:00");
-    expect(feed.dc.modified, "2000-01-01T12:00+00:00");
+    expect(feed.dc.date, DateTime.utc(2000, 1, 1, 12));
+    expect(feed.dc.created, DateTime.utc(2000, 1, 1, 13));
+    expect(feed.dc.modified, DateTime.utc(2000, 1, 1, 14));
     expect(feed.dc.type, "type");
     expect(feed.dc.format, "format");
     expect(feed.dc.identifier, "identifier");
@@ -257,7 +258,7 @@ void main() {
     expect(feed.items.first.dc.description, "description");
     expect(feed.items.first.dc.publisher, "publisher");
     expect(feed.items.first.dc.contributor, "contributor");
-    expect(feed.items.first.dc.date, "2000-01-01T12:00+00:00");
+    expect(feed.items.first.dc.date, DateTime.utc(2000, 1, 1, 12));
     expect(feed.items.first.dc.type, "type");
     expect(feed.items.first.dc.format, "format");
     expect(feed.items.first.dc.identifier, "identifier");

test/xml/RSS-DC.xml

@@ -25,8 +25,8 @@
             <dc:publisher>publisher</dc:publisher>
             <dc:contributor>contributor</dc:contributor>
             <dc:date>2000-01-01T12:00+00:00</dc:date>
-            <dc:created>2000-01-01T12:00+00:00</dc:created>
-            <dc:modified>2000-01-01T12:00+00:00</dc:modified>
+            <dc:created>2000-01-01T13:00+00:00</dc:created>
+            <dc:modified>2000-01-01T14:00+00:00</dc:modified>
             <dc:type>type</dc:type>
             <dc:format>format</dc:format>
             <dc:identifier>identifier</dc:identifier>