Adding Angular and dependent packages for testing

third_party/pkg/angular/lib/filter/date.dart

Index: third_party/pkg/angular/lib/filter/date.dart
diff --git a/third_party/pkg/angular/lib/filter/date.dart b/third_party/pkg/angular/lib/filter/date.dart
new file mode 100644
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+++ b/third_party/pkg/angular/lib/filter/date.dart
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+part of angular.filter;
+
+/**
+ * Formats date to a string based on the requested format.
+ * See Dart http://api.dartlang.org/docs/releases/latest/intl/DateFormat.html
+ * for full formating options.
+ *
+ * - `medium`: equivalent to `MMM d, y h:mm:ss a` for en_US locale (e.g. Sep 3, 2010 12:05:08 pm)
+ * - `short`: equivalent to `M/d/yy h:mm a` for en_US locale (e.g. 9/3/10 12:05 pm)
+ * - `fullDate`: equivalent to `EEEE, MMMM d, y` for en_US locale (e.g. Friday, September 3, 2010)
+ * - `longDate`: equivalent to `MMMM d, y` for en_US locale (e.g. September 3, 2010)
+ * - `mediumDate`: equivalent to `MMM d, y` for en_US locale (e.g. Sep 3, 2010)
+ * - `shortDate`: equivalent to `M/d/yy` for en_US locale (e.g. 9/3/10)
+ * - `mediumTime`: equivalent to `h:mm:ss a` for en_US locale (e.g. 12:05:08 pm)
+ * - `shortTime`: equivalent to `h:mm a` for en_US locale (e.g. 12:05 pm)
+ *
+ *
+ * Usage:
+ *
+ *     {{ date_expression | date[:format] }}
+ *
+ */
+@NgFilter(name:'date')
+class DateFilter {
+
+  static Map<String, String> MAP = {
+    'medium':     'MMM d, y h:mm:ss a',
+    'short':      'M/d/yy h:mm a',
+    'fullDate':   'EEEE, MMMM d, y',
+    'longDate':   'MMMM d, y',
+    'mediumDate': 'MMM d, y',
+    'shortDate':  'M/d/yy',
+    'mediumTime': 'h:mm:ss a',
+    'shortTime':  'h:mm a',
+  };
+
+  Map<num, NumberFormat> nfs = new Map<num, NumberFormat>();
+
+  /**
+   *  [date]: Date to format either as Date object, milliseconds
+   *    ([string] or [num]) or various ISO 8601 datetime string formats
+   *    (e.g. `yyyy-MM-ddTHH:mm:ss.SSSZ` and its shorter versions like
+   *    `yyyy-MM-ddTHH:mmZ`, `yyyy-MM-dd` or `yyyyMMddTHHmmssZ`). If no
+   *    timezone is specified in the string input, the time is considered to
+   *    be in the local timezone.
+   *
+   *  [format]: Formatting rules (see Description). If not specified,
+   *    mediumDate is used
+   *
+   */
+  call(date, [format = r'mediumDate']) {
+    if (date == '' || date == null) return date;
+    if (date is String) date = DateTime.parse(date);
+    if (date is num) date = new DateTime.fromMillisecondsSinceEpoch(date);
+    if (!(date is DateTime)) return date;
+    var nf = nfs[format];
+    if (nf == null) {
+      if (MAP.containsKey(format)) {
+        format = MAP[format];
+      }
+      nf = new DateFormat(format);
+    }
+    return nf.format(date);
+  }
+}