Added more query plan integration tests.

Author: michaelstaib

src/HotChocolate/Fusion/test/Core.Tests/RequestPlannerTests.cs

@@ -930,6 +930,52 @@ ... on Patient1 {
         snapshot.Add(result.QueryPlan, nameof(result.QueryPlan));
         await snapshot.MatchAsync();
     }
+    
+    [Fact]
+    public async Task Query_Plan_24_Field_Requirement_And_Fields_In_Context()
+    {
+        // arrange
+        using var demoProject = await DemoProject.CreateAsync();
+
+        var fusionGraph = await new FusionGraphComposer().ComposeAsync(
+            new[]
+            {
+                demoProject.Reviews2.ToConfiguration(Reviews2ExtensionSdl),
+                demoProject.Accounts.ToConfiguration(AccountsExtensionSdl),
+                demoProject.Products.ToConfiguration(ProductsExtensionSdl),
+                demoProject.Shipping.ToConfiguration(ShippingExtensionSdl),
+            },
+            FusionFeatureFlags.NodeField);
+
+        // act
+        var result = await CreateQueryPlanAsync(
+            fusionGraph,
+            """
+            query Requires {
+                reviews {
+                  body
+                  author {
+                    name
+                    birthdate
+                  }
+                  product {
+                    id
+                    name
+                    deliveryEstimate(zip: "12345") {
+                      min
+                      max
+                    }
+                  }
+                }
+            }
+            """);
+
+        // assert
+        var snapshot = new Snapshot();
+        snapshot.Add(result.UserRequest, nameof(result.UserRequest));
+        snapshot.Add(result.QueryPlan, nameof(result.QueryPlan));
+        await snapshot.MatchAsync();
+    }
 
     private static async Task<(DocumentNode UserRequest, QueryPlan QueryPlan)> CreateQueryPlanAsync(
         Skimmed.Schema fusionGraph,

src/HotChocolate/Fusion/test/Core.Tests/__snapshots__/RequestPlannerTests.Query_Plan_24_Field_Requirement_And_Fields_In_Context.snap

@@ -0,0 +1,122 @@
+UserRequest
+---------------
+query Requires {
+  reviews {
+    body
+    author {
+      name
+      birthdate
+    }
+    product {
+      id
+      name
+      deliveryEstimate(zip: "12345") {
+        min
+        max
+      }
+    }
+  }
+}
+---------------
+
+QueryPlan
+---------------
+{
+  "document": "query Requires { reviews { body author { name birthdate } product { id name deliveryEstimate(zip: \u002212345\u0022) { min max } } } }",
+  "operation": "Requires",
+  "rootNode": {
+    "type": "Sequence",
+    "nodes": [
+      {
+        "type": "Resolve",
+        "subgraph": "Reviews2",
+        "document": "query Requires_1 { reviews { body author { name __fusion_exports__3: id } product { id __fusion_exports__4: id } } }",
+        "selectionSetId": 0
+      },
+      {
+        "type": "Compose",
+        "selectionSetIds": [
+          0
+        ]
+      },
+      {
+        "type": "Parallel",
+        "nodes": [
+          {
+            "type": "ResolveByKeyBatch",
+            "subgraph": "Accounts",
+            "document": "query Requires_2($__fusion_exports__3: [ID!]!) { nodes(ids: $__fusion_exports__3) { ... on User { birthdate __fusion_exports__3: id } } }",
+            "selectionSetId": 4,
+            "argumentTypes": [
+              {
+                "argument": "__fusion_exports__3",
+                "type": "[ID!]!"
+              }
+            ],
+            "path": [
+              "nodes"
+            ],
+            "requires": [
+              {
+                "variable": "__fusion_exports__3"
+              }
+            ]
+          },
+          {
+            "type": "ResolveByKeyBatch",
+            "subgraph": "Products",
+            "document": "query Requires_4($__fusion_exports__4: [ID!]!) { nodes(ids: $__fusion_exports__4) { ... on Product { name __fusion_exports__1: dimension { size } __fusion_exports__2: dimension { weight } __fusion_exports__4: id } } }",
+            "selectionSetId": 2,
+            "argumentTypes": [
+              {
+                "argument": "__fusion_exports__4",
+                "type": "[ID!]!"
+              }
+            ],
+            "path": [
+              "nodes"
+            ],
+            "requires": [
+              {
+                "variable": "__fusion_exports__4"
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "type": "Compose",
+        "selectionSetIds": [
+          4
+        ]
+      },
+      {
+        "type": "Resolve",
+        "subgraph": "Shipping",
+        "document": "query Requires_3($__fusion_exports__1: Int!, $__fusion_exports__2: Int!, $__fusion_exports__4: ID!) { productById(id: $__fusion_exports__4) { deliveryEstimate(size: $__fusion_exports__1, weight: $__fusion_exports__2, zip: \u002212345\u0022) { min max } } }",
+        "selectionSetId": 2,
+        "path": [
+          "productById"
+        ],
+        "requires": [
+          {
+            "variable": "__fusion_exports__1"
+          },
+          {
+            "variable": "__fusion_exports__2"
+          },
+          {
+            "variable": "__fusion_exports__4"
+          }
+        ]
+      },
+      {
+        "type": "Compose",
+        "selectionSetIds": [
+          2
+        ]
+      }
+    ]
+  }
+}
+---------------