feature: clear metadata per url

src/Simple.OData.Client.Core/ISession.cs

@@ -40,4 +40,9 @@ public interface ISession : IDisposable
 	/// </summary>
 	/// <returns>An <see cref="HttpClient"/> instance.</returns>
 	HttpConnection GetHttpConnection();
+
+	/// <summary>
+	/// Clears base url metadata cache
+	/// </summary>
+	void ClearMetadataCache();
 }

src/Simple.OData.Client.Core/ODataClient.cs

@@ -107,6 +107,14 @@ public static void ClearMetadataCache()
 		EdmMetadataCache.Clear();
 	}
 
+	/// <summary>
+	/// Clears base url metadata cache
+	/// </summary>
+	public void ClearBaseUrlMetadataCache()
+	{
+		Session.ClearMetadataCache();
+	}
+
 	/// <summary>
 	/// Returns an instance of a fluent OData client for the specified collection.
 	/// </summary>

src/Simple.OData.Client.Core/Session.cs

@@ -110,6 +110,7 @@ public void ClearMetadataCache()
 		{
 			EdmMetadataCache.Clear(metadataCache.Key);
 			MetadataCache = null;
+			_adapter = null;
 		}
 	}
 

src/Simple.OData.Client.IntegrationTests/MetadataODataTests.cs

@@ -83,4 +83,23 @@ await Task.WhenAll(
 
 		Assert.Equal(1, metadataCallsCount);
 	}
+
+	[Fact]
+	public async Task MetadataClear()
+	{
+		ODataClient.ClearMetadataCache();
+		var metadataCallsCount = 0;
+		var settings = new ODataClientSettings
+		{
+			BaseUri = _serviceUri,
+			BeforeRequest = _ => metadataCallsCount++
+		};
+		var client = new ODataClient(settings);
+
+		await client.GetMetadataAsStringAsync();
+		client.ClearBaseUrlMetadataCache();
+		await client.GetMetadataAsStringAsync();
+
+		Assert.Equal(2, metadataCallsCount);
+	}
 }