V3 YAML schema for Data Sources (#712)

src/Persistence.Tests/PaYaml/Serialization/PaYamlSerializerTests.cs

@@ -45,6 +45,22 @@ public void DeserializeExamplePaYamlApp(string path, int expectedAppPropertiesCo
         paFileRoot.App.Should().NotDefineMember("Children", "App.Children is still under design review");
     }
 
+    [TestMethod]
+    [DataRow(@"_TestData/SchemaV3_0/Examples/Src/DataSources/DataSources1.pa.yaml")]
+    public void DeserializeExamplePaYamlDataSources(string path)
+    {
+        var paFileRoot = PaYamlSerializer.Deserialize<PaModule>(File.ReadAllText(path));
+        paFileRoot.ShouldNotBeNull();
+
+        // Top level properties
+        paFileRoot.DataSources.ShouldNotBeNull();
+        paFileRoot.App.Should().BeNull();
+        paFileRoot.ComponentDefinitions.Should().BeNullOrEmpty();
+        paFileRoot.Screens.Should().BeNullOrEmpty();
+
+        paFileRoot.DataSources.Should().HaveCount(3);
+    }
+
     [TestMethod]
     [DataRow(@"_TestData/SchemaV3_0/Examples/Src/Screens/Screen1.pa.yaml", 2, 8, 14, 2, 3)]
     [DataRow(@"_TestData/SchemaV3_0/Examples/Src/Screens/FormsScreen2.pa.yaml", 0, 1, 62, 0, 0)]
@@ -140,6 +156,7 @@ public void DeserializeExamplePaYamlSingleFileApp()
     [DataRow(@"_TestData/SchemaV3_0/FullSchemaUses/App.pa.yaml")]
     [DataRow(@"_TestData/SchemaV3_0/FullSchemaUses/Screens-general-controls.pa.yaml")]
     [DataRow(@"_TestData/SchemaV3_0/FullSchemaUses/Screens-with-components.pa.yaml")]
+    [DataRow(@"_TestData/SchemaV3_0/Examples/Src/DataSources/DataSources1.pa.yaml")]
     public void RoundTripFromYaml(string path)
     {
         var originalYaml = File.ReadAllText(path);

src/Persistence/PaYaml/Models/SchemaV3/DataSourceInstance.cs

@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+using YamlDotNet.Serialization;
+
+namespace Microsoft.PowerPlatform.PowerApps.Persistence.PaYaml.Models.SchemaV3;
+
+public enum DataSourceInstanceType
+{
+    DataverseTable,
+}
+
+public record DataSourceInstance
+{
+    [YamlMember(DefaultValuesHandling = DefaultValuesHandling.Preserve)]
+    public required DataSourceInstanceType Type { get; init; }
+    public string? TableLogicalName { get; init; }
+}

src/Persistence/PaYaml/Models/SchemaV3/PaModule.cs

@@ -11,4 +11,5 @@ public record PaModule
     public AppInstance? App { get; init; }
     public NamedObjectMapping<ComponentDefinition> ComponentDefinitions { get; init; } = new();
     public NamedObjectMapping<ScreenInstance> Screens { get; init; } = new();
+    public NamedObjectMapping<DataSourceInstance> DataSources { get; init; } = new();
 }

src/schemas-tests/pa-yaml/v3.0/Examples/Src/DataSources/DataSources1.pa.yaml

@@ -0,0 +1,10 @@
+DataSources:
+  Accounts:
+    Type: DataverseTable
+    TableLogicalName: account
+  Contacts:
+    Type: DataverseTable
+    TableLogicalName: contact
+  Users:
+    Type: DataverseTable
+    TableLogicalName: systemuser