diff options
Diffstat (limited to 'Xamarin.Forms.Core.UnitTests/ResourceDictionaryTests.cs')
| -rw-r--r-- | Xamarin.Forms.Core.UnitTests/ResourceDictionaryTests.cs | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core.UnitTests/ResourceDictionaryTests.cs b/Xamarin.Forms.Core.UnitTests/ResourceDictionaryTests.cs new file mode 100644 index 00000000..d4229221 --- /dev/null +++ b/Xamarin.Forms.Core.UnitTests/ResourceDictionaryTests.cs @@ -0,0 +1,256 @@ +using System; +using System.Linq; +using NUnit.Framework; +using System.Collections.Generic; + +namespace Xamarin.Forms.Core.UnitTests +{ + [TestFixture] + public class ResourceDictionaryTests : BaseTestFixture + { + [Test] + public void Add () + { + var rd = new ResourceDictionary (); + rd.Add ("foo", "bar"); + Assert.AreEqual ("bar", rd ["foo"]); + } + + [Test] + public void AddKVP () + { + var rd = new ResourceDictionary (); + ((ICollection<KeyValuePair<string,object>>)rd).Add (new KeyValuePair<string,object> ("foo", "bar")); + Assert.AreEqual ("bar", rd ["foo"]); + } + + [Test] + public void ResourceDictionaryTriggersValueChangedOnAdd () + { + var rd = new ResourceDictionary (); + ((IResourceDictionary)rd).ValuesChanged += (sender, e) => { + Assert.AreEqual (1, e.Values.Count()); + var kvp = e.Values.First(); + Assert.AreEqual ("foo", kvp.Key); + Assert.AreEqual ("FOO", kvp.Value); + Assert.Pass (); + }; + rd.Add ("foo", "FOO"); + Assert.Fail (); + } + + [Test] + public void ResourceDictionaryTriggersValueChangedOnChange () + { + var rd = new ResourceDictionary (); + rd.Add ("foo", "FOO"); + ((IResourceDictionary)rd).ValuesChanged += (sender, e) => { + Assert.AreEqual (1, e.Values.Count()); + var kvp = e.Values.First(); + Assert.AreEqual ("foo", kvp.Key); + Assert.AreEqual ("BAR", kvp.Value); + Assert.Pass (); + }; + rd ["foo"] = "BAR"; + Assert.Fail (); + } + + [Test] + public void ResourceDictionaryCtor () + { + var rd = new ResourceDictionary (); + Assert.AreEqual (0, rd.Count()); + } + + [Test] + public void ElementMergesParentRDWithCurrent () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAR" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + { "foo", "FOO" }, + } + }; + + elt.Parent = parent; + + object value; + Assert.True (elt.TryGetResource ("foo", out value)); + Assert.AreEqual ("FOO", value); + Assert.True (elt.TryGetResource ("bar", out value)); + Assert.AreEqual ("BAR", value); + } + + [Test] + public void CurrentOverridesParentValues () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAZ" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + { "foo", "FOO" }, + { "bar","BAR" }, + } + }; + + elt.Parent = parent; + + object value; + Assert.True (elt.TryGetResource ("foo", out value)); + Assert.AreEqual ("FOO", value); + Assert.True (elt.TryGetResource ("bar", out value)); + Assert.AreEqual ("BAZ", value); + } + + [Test] + public void AddingToParentTriggersValuesChanged () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAR" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + { "foo", "FOO" }, + } + }; + + elt.Parent = parent; + + ((IElement)elt).AddResourcesChangedListener ((sender, e) => { + Assert.AreEqual (1, e.Values.Count ()); + var kvp = e.Values.First (); + Assert.AreEqual ("baz", kvp.Key); + Assert.AreEqual ("BAZ", kvp.Value); + Assert.Pass (); + }); + + parent.Resources ["baz"] = "BAZ"; + Assert.Fail (); + } + + [Test] + public void ResourcesChangedNotRaisedIfKeyExistsInCurrent () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAR" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + { "foo", "FOO" }, + } + }; + + elt.Parent = parent; + + ((IElement)elt).AddResourcesChangedListener ((sender, e) => Assert.Fail ()); + parent.Resources ["bar"] = "BAZ"; + Assert.Pass (); + } + + [Test] + public void SettingParentTriggersValuesChanged () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAR" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + {"foo", "FOO"}, + {"baz", "BAZ"}, + {"bar", "NEWBAR"} + } + }; + + ((IElement)elt).AddResourcesChangedListener ((sender, e) => { + Assert.AreEqual (2, e.Values.Count ()); + Assert.AreEqual ("FOO", e.Values.First (kvp => kvp.Key == "foo").Value); + Assert.AreEqual ("BAZ", e.Values.First (kvp => kvp.Key == "baz").Value); + Assert.Pass (); + }); + elt.Parent = parent; + Assert.Fail (); + } + + [Test] + public void SettingResourcesTriggersResourcesChanged () + { + var elt = new VisualElement (); + + var parent = new VisualElement { + Resources = new ResourceDictionary { + {"bar", "BAR"} + } + }; + + elt.Parent = parent; + + ((IElement)elt).AddResourcesChangedListener ((sender, e) => { + Assert.AreEqual (3, e.Values.Count ()); + Assert.Pass (); + }); + elt.Resources = new ResourceDictionary { + {"foo", "FOO"}, + {"baz", "BAZ"}, + {"bar", "NEWBAR"} + }; + Assert.Fail(); + } + + [Test] + public void DontThrowOnReparenting () + { + var elt = new View { Resources = new ResourceDictionary () }; + var parent = new StackLayout (); + + parent.Children.Add (elt); + Assert.DoesNotThrow (() => parent.Children.Remove (elt)); + } + + [Test] + public void MultiLevelMerge () + { + var elt = new VisualElement { + Resources = new ResourceDictionary { + { "bar","BAR" }, + } + }; + + var parent = new VisualElement { + Resources = new ResourceDictionary { + { "foo", "FOO" }, + }, + Parent = new VisualElement { + Resources = new ResourceDictionary { + {"baz", "BAZ"} + } + } + }; + + ((IElement)elt).AddResourcesChangedListener ((sender, e) => { + Assert.AreEqual (2, e.Values.Count ()); + Assert.Pass (); + }); + + elt.Parent = parent; + Assert.Fail (); + } + } +}
\ No newline at end of file |