Shared root but nested (#77)

Taken from ardatan/graphql-tools#6620

In case of a shared root field, the gateway should extract available
selection set (nestedly) for each subgraph correctly, then merge deeply
the results.

Blocked by graphql-hive/console#5856

---------

Co-authored-by: Kamil Kisiela <[email protected]>

README.md

@@ -14,7 +14,7 @@ This repository contains a set of tests to evaluate and compare the compatibilit
 |  [Apollo Router](https://www.apollographql.com/)   |    97.66%     | 🟢 167 ❌ 4  | 🟢 39 ❌ 2  |
 |  [Apollo Gateway](https://www.apollographql.com/)  |    97.08%     | 🟢 166 ❌ 5  | 🟢 38 ❌ 3  |
 |      [Cosmo Router](https://wundergraph.com)       |    72.51%     | 🟢 124 ❌ 47 | 🟢 19 ❌ 22 |
-|      [Grafbase Gateway](https://grafbase.com)      |    60.23%     | 🟢 103 ❌ 68 | 🟢 19 ❌ 22 |
+|      [Grafbase Gateway](https://grafbase.com)      |    59.65%     | 🟢 102 ❌ 69 | 🟢 19 ❌ 22 |
 
 <!-- gateways:end -->
 

REPORT.md

@@ -8,7 +8,7 @@
 |  [Apollo Router](https://www.apollographql.com/)   |    97.66%     | 🟢 167 ❌ 4  | 🟢 39 ❌ 2  |
 |  [Apollo Gateway](https://www.apollographql.com/)  |    97.08%     | 🟢 166 ❌ 5  | 🟢 38 ❌ 3  |
 |      [Cosmo Router](https://wundergraph.com)       |    72.51%     | 🟢 124 ❌ 47 | 🟢 19 ❌ 22 |
-|      [Grafbase Gateway](https://grafbase.com)      |    60.23%     | 🟢 103 ❌ 68 | 🟢 19 ❌ 22 |
+|      [Grafbase Gateway](https://grafbase.com)      |    59.65%     | 🟢 102 ❌ 69 | 🟢 19 ❌ 22 |
 
 ## Detailed Results
 
@@ -424,7 +424,7 @@ You can look at the full list of tests [here](./src/test-suites/). Every test id
 <a href="./src/test-suites/input-object-intersection">input-object-intersection</a>
 <pre>🟢🟢🟢</pre>
 <a href="./src/test-suites/interface-object-with-requires">interface-object-with-requires</a>
-<pre>🟢🟢❌🟢❌❌❌</pre>
+<pre>❌🟢❌🟢❌❌❌</pre>
 <a href="./src/test-suites/keys-mashup">keys-mashup</a>
 <pre>🟢</pre>
 <a href="./src/test-suites/mutations">mutations</a>
@@ -478,5 +478,5 @@ You can look at the full list of tests [here](./src/test-suites/). Every test id
 <a href="./src/test-suites/union-interface-distributed">union-interface-distributed</a>
 <pre>🟢🟢🟢🟢🟢🟢🟢</pre>
 <a href="./src/test-suites/union-intersection">union-intersection</a>
-<pre>❌🟢🟢❌❌🟢🟢❌</pre>
+<pre>🟢🟢🟢❌❌🟢❌❌</pre>
 </details>

gateways/apollo-router/install.sh

@@ -1 +1,2 @@
+# https://github.com/apollographql/router/releases
 curl -sSL https://router.apollo.dev/download/nix/v1.57.0 | sh

gateways/cosmo-router/install.sh

@@ -7,7 +7,7 @@ set -u
 
 BINARY_DOWNLOAD_PREFIX="https://github.com/wundergraph/cosmo/releases/download"
 
-DOWNLOAD_VERSION="0.132.0"
+DOWNLOAD_VERSION="0.135.0"
 
 download_binary() {
     downloader --check

gateways/grafbase-gateway/results.txt

@@ -25,7 +25,7 @@ XXXX
 input-object-intersection
 ...
 interface-object-with-requires
-..X.XXX
+X.X.XXX
 keys-mashup
 .
 mutations
@@ -79,9 +79,9 @@ unavailable-override
 union-interface-distributed
 .......
 union-intersection
-X..XX..X
+...XX.XX
 
 ---
 Total: 171
-Passed: 103
-Failed: 68
+Passed: 102
+Failed: 69

gateways/hive-gateway/install.sh

@@ -1 +1 @@
-curl -sSL https://graphql-hive.com/install-gateway.sh | sh -s "1.4.0"
+curl -sSL https://graphql-hive.com/install-gateway.sh | sh -s "1.4.3"

package.json

@@ -67,17 +67,17 @@
   },
   "devDependencies": {
     "@apollo/gateway": "2.9.3",
-    "@apollo/server": "4.11.0",
+    "@apollo/server": "4.11.2",
     "@types/async-retry": "1.4.9",
     "@types/express": "5.0.0",
-    "@types/node": "22.8.1",
+    "@types/node": "22.8.5",
     "@types/wait-on": "5.3.4",
     "@types/yargs": "17.0.33",
     "@types/detect-port": "1.3.5",
     "express": "5.0.1",
     "prettier": "3.3.3",
     "tsx": "4.19.2",
     "typescript": "5.6.3",
-    "wgc": "0.68.6"
+    "wgc": "0.69.1"
   }
 }

src/test-suites/shared-root/category.subgraph.ts

@@ -10,13 +10,18 @@ export default createSubgraph("category", {
       )
 
     type Query {
-      product: Product @shareable
-      products: [Product] @shareable
+      product: Product! @shareable
+      products: [Product!]! @shareable
     }
 
     type Product {
       id: ID! @shareable
-      category: String @shareable
+      category: Category!
+    }
+
+    type Category {
+      id: ID!
+      name: String!
     }
   `,
   resolvers: {

src/test-suites/shared-root/data.ts

@@ -1,6 +1,22 @@
 export const product = {
   id: "1",
-  name: "Product 1",
-  category: "Category 1",
-  price: 100,
+  name: {
+    id: "1",
+    brand: "Brand 1",
+    model: "Model 1",
+  },
+  category: {
+    id: "1",
+    name: "Category 1",
+  },
+  price: {
+    id: "1",
+    amount: 1000,
+    currency: "USD",
+  },
+  address: {
+    id: "1",
+    street: "123 Main St",
+    city: "Springfield",
+  }
 };

src/test-suites/shared-root/name.subgraph.ts

@@ -10,13 +10,19 @@ export default createSubgraph("name", {
       )
 
     type Query {
-      product: Product @shareable
-      products: [Product] @shareable
+      product: Product! @shareable
+      products: [Product!]! @shareable
     }
 
     type Product {
       id: ID! @shareable
-      name: String @shareable
+      name: Name!
+    }
+
+    type Name {
+      id: ID!
+      brand: String!
+      model: String!
     }
   `,
   resolvers: {

src/test-suites/shared-root/price.subgraph.ts

@@ -10,13 +10,19 @@ export default createSubgraph("price", {
       )
 
     type Query {
-      product: Product @shareable
-      products: [Product] @shareable
+      product: Product! @shareable
+      products: [Product!]! @shareable
     }
 
     type Product {
       id: ID! @shareable
-      price: Float @shareable
+      price: Price!
+    }
+
+    type Price {
+      id: ID!
+      amount: Int!
+      currency: String!
     }
   `,
   resolvers: {