more cov on core

src/DotNetStac.Test/Item/ItemTests.cs

@@ -71,11 +71,12 @@ public void CanSerializeMinimalSample()
 
             var properties = new Dictionary<string, object>();
 
-            properties.Add("datetime", DateTime.Parse("2016-05-03T13:21:30.040Z").ToUniversalTime());
             properties.Add("collection", "CS3");
 
             StacItem item = new StacItem("CS3-20160503_132130_04", geometry, properties);
 
+            item.CommonMetadata().DateTime = new Itenso.TimePeriod.TimeInterval(DateTime.Parse("2016-05-03T13:21:30.040Z"));
+
             item.Links.Add(StacLink.CreateSelfLink(new Uri("http://cool-sat.com/catalog/CS3-20160503_132130_04/CS3-20160503_132130_04.json")));
             item.SetCollection("cool-sat", new Uri("http://cool-sat.com/catalog.json"));
 
@@ -99,6 +100,77 @@ public void CanSerializeMinimalSample()
             Assert.Null(item.Collection);
         }
 
+        [Fact]
+        public void CanSerializeExtendedSample()
+        {
+            var coordinates = new[]
+            {
+                new List<IPosition>
+                {
+                    new Position(37.488035566,-122.308150179),
+                    new Position(37.538869539,-122.597502109),
+                    new Position(37.613537207,-122.576687533),
+                    new Position(37.562818007,-122.288048600),
+                    new Position(37.488035566,-122.308150179)
+                }
+            };
+
+            var geometry = new Polygon(new LineString[] { new LineString(coordinates[0]) });
+
+            var properties = new Dictionary<string, object>();
+
+            properties.Add("collection", "CS3");
+
+            StacItem item = new StacItem("CS3-20160503_132130_04", geometry, properties);
+
+            item.CommonMetadata().DateTime = new Itenso.TimePeriod.TimeInterval(DateTime.MinValue, DateTime.MaxValue);
+            item.CommonMetadata().DateTime = new Itenso.TimePeriod.TimeInterval(DateTime.Parse("2016-05-03T13:21:30.040Z"), DateTime.Parse("2016-05-03T14:21:30.040Z"));
+
+            item.Links.Add(StacLink.CreateSelfLink(new Uri("http://cool-sat.com/catalog/CS3-20160503_132130_04/CS3-20160503_132130_04.json")));
+            item.SetCollection("cool-sat", new Uri("http://cool-sat.com/catalog.json"));
+
+            item.Assets.Add("analytic", new StacAsset(item, new Uri("relative-path/to/analytic.tif", UriKind.Relative), null, "4-Band Analytic", null));
+            item.Assets.Add("thumbnail", StacAsset.CreateThumbnailAsset(item, new Uri("http://cool-sat.com/catalog/CS3-20160503_132130_04/thumbnail.png"), null, "Thumbnail"));
+
+            item.CommonMetadata().Created = new DateTime(2018, 1, 1);
+            item.CommonMetadata().Updated = new DateTime(2018, 1, 1);
+
+            Assert.Equal(new DateTime(2018, 1, 1), item.CommonMetadata().Created);
+            Assert.Equal(new DateTime(2018, 1, 1), item.CommonMetadata().Updated);
+
+            item.CommonMetadata().Gsd = 0;
+            item.CommonMetadata().Gsd = 1;
+            Assert.Equal(1, item.CommonMetadata().Gsd);
+
+            item.CommonMetadata().Title = "CS3-20160503_132130_04";
+            Assert.Equal("CS3-20160503_132130_04", item.CommonMetadata().Title);
+
+            item.CommonMetadata().Platform = "coolsat-3";
+            Assert.Equal("coolsat-3", item.CommonMetadata().Platform);
+
+            item.CommonMetadata().Mission = "coolsat-3";
+            Assert.Equal("coolsat-3", item.CommonMetadata().Mission);
+
+            item.CommonMetadata().Constellation = "coolsat";
+            Assert.Equal("coolsat", item.CommonMetadata().Constellation);
+
+            // item.BoundingBoxes = new double[4] { -122.59750209, 37.48803556, -122.2880486, 37.613537207 };
+            item.BoundingBoxes = item.GetBoundingBoxFromGeometryExtent();
+
+            var actualJson = StacConvert.Serialize(item);
+
+            ValidateJson(actualJson);
+
+            var expectedJson = GetJson("Item");
+
+            ValidateJson(expectedJson);
+
+            JsonAssert.AreEqual(expectedJson, actualJson);
+
+            item.Links.Remove(item.Links.First(l => l.RelationshipType == "collection"));
+            Assert.Null(item.Collection);
+        }
+
         [Fact]
         public void CanManageDates()
         {

src/DotNetStac.Test/Resources/Item/ItemTests_CanSerializeExtendedSample.json

@@ -0,0 +1,75 @@
+{
+    "stac_version": "1.0.0-rc.4",
+    "type": "Feature",
+    "id": "CS3-20160503_132130_04",
+    "bbox": [
+        -122.597502109,
+        37.488035566,
+        -122.2880486,
+        37.613537207
+    ],
+    "collection": "cool-sat",
+    "geometry": {
+        "type": "Polygon",
+        "coordinates": [
+            [
+                [
+                    -122.308150179,
+                    37.488035566
+                ],
+                [
+                    -122.597502109,
+                    37.538869539
+                ],
+                [
+                    -122.576687533,
+                    37.613537207
+                ],
+                [
+                    -122.288048600,
+                    37.562818007
+                ],
+                [
+                    -122.308150179,
+                    37.488035566
+                ]
+            ]
+        ]
+    },
+    "properties": {
+        "title": "CS3-20160503_132130_04",
+        "platform": "coolsat-3",
+        "mission": "coolsat-3",
+        "constellation": "coolsat",
+        "datetime": "2016-05-03T13:21:30.040Z",
+        "start_datetime": "2016-05-03T13:21:30.040Z",
+        "end_datetime": "2016-05-03T14:21:30.040Z",
+        "collection": "CS3",
+        "created": "2018-01-01T00:00:00Z",
+        "updated": "2018-01-01T00:00:00Z",
+        "gsd": 1.0
+    },
+    "links": [
+        {
+            "rel": "self",
+            "href": "http://cool-sat.com/catalog/CS3-20160503_132130_04/CS3-20160503_132130_04.json"
+        },
+        {
+            "rel": "collection",
+            "href": "http://cool-sat.com/catalog.json"
+        }
+    ],
+    "assets": {
+        "analytic": {
+            "href": "relative-path/to/analytic.tif",
+            "title": "4-Band Analytic"
+        },
+        "thumbnail": {
+            "href": "http://cool-sat.com/catalog/CS3-20160503_132130_04/thumbnail.png",
+            "title": "Thumbnail",
+            "roles": [
+                "thumbnail"
+            ]
+        }
+    }
+}

src/DotNetStac/StacAsset.cs

@@ -7,6 +7,7 @@
 using Newtonsoft.Json;
 using System.Net.Mime;
 using System.Runtime.Serialization;
+using System.Diagnostics.CodeAnalysis;
 
 namespace Stac
 {
@@ -229,6 +230,7 @@ public IDictionary<string, object> Properties
         public IStacObject ParentStacObject { get => parentStacObject; internal set => parentStacObject = value; }
 
 #pragma warning disable 1591
+        [ExcludeFromCodeCoverage]
         public bool ShouldSerializeStacExtensions()
         {
             // don't serialize the Manager property if an employee is their own manager

src/DotNetStac/StacCommonMetadata.cs

@@ -159,26 +159,25 @@ public Itenso.TimePeriod.ITimePeriod DateTime
             }
             set
             {
-                // remove previous values
-                stacPropertiesContainer.Properties.Remove("datetime");
-                stacPropertiesContainer.Properties.Remove("start_datetime");
-                stacPropertiesContainer.Properties.Remove("end_datetime");
-
                 // datetime, start_datetime, end_datetime
                 if (value.IsAnytime)
                 {
-                    stacPropertiesContainer.Properties.Add("datetime", null);
+                    stacPropertiesContainer.RemoveProperty("start_datetime");
+                    stacPropertiesContainer.RemoveProperty("end_datetime");
+                    stacPropertiesContainer.SetProperty("datetime", null);
                 }
 
                 if (value.IsMoment)
                 {
-                    stacPropertiesContainer.Properties.Add("datetime", value.Start);
+                    stacPropertiesContainer.RemoveProperty("start_datetime");
+                    stacPropertiesContainer.RemoveProperty("end_datetime");
+                    stacPropertiesContainer.SetProperty("datetime", value.Start);
                 }
                 else
                 {
-                    stacPropertiesContainer.Properties.Add("datetime", value.Start);
-                    stacPropertiesContainer.Properties.Add("start_datetime", value.Start);
-                    stacPropertiesContainer.Properties.Add("end_datetime", value.End);
+                    stacPropertiesContainer.SetProperty("datetime", value.Start);
+                    stacPropertiesContainer.SetProperty("start_datetime", value.Start);
+                    stacPropertiesContainer.SetProperty("end_datetime", value.End);
                 }
             }
         }