dataconnect: test: Add integration tests for operations with empty selection sets

.github/workflows/dataconnect.yml

@@ -34,7 +34,7 @@ env:
   FDC_JAVA_VERSION: ${{ inputs.javaVersion || '17' }}
   FDC_ANDROID_EMULATOR_API_LEVEL: ${{ inputs.androidEmulatorApiLevel || '34' }}
   FDC_NODEJS_VERSION: ${{ inputs.nodeJsVersion || '20' }}
-  FDC_FIREBASE_TOOLS_VERSION: ${{ inputs.firebaseToolsVersion || '14.16.0' }}
+  FDC_FIREBASE_TOOLS_VERSION: ${{ inputs.firebaseToolsVersion || '14.18.0' }}
   FDC_FIREBASE_TOOLS_DIR: /tmp/firebase-tools
   FDC_FIREBASE_COMMAND: /tmp/firebase-tools/node_modules/.bin/firebase
   FDC_PYTHON_VERSION: ${{ inputs.pythonVersion || '3.13' }}

.github/workflows/dataconnect_demo_app.yml

@@ -18,7 +18,7 @@ on:
 
 env:
   FDC_NODE_VERSION: ${{ inputs.nodeVersion || '20' }}
-  FDC_FIREBASE_TOOLS_VERSION: ${{ inputs.firebaseToolsVersion || '14.16.0' }}
+  FDC_FIREBASE_TOOLS_VERSION: ${{ inputs.firebaseToolsVersion || '14.18.0' }}
   FDC_JAVA_VERSION: ${{ inputs.javaVersion || '17' }}
   FDC_FIREBASE_TOOLS_DIR: ${{ github.workspace }}/firebase-tools
   FDC_FIREBASE_COMMAND: ${{ github.workspace }}/firebase-tools/node_modules/.bin/firebase

firebase-dataconnect/connectors/src/androidTest/kotlin/com/google/firebase/dataconnect/connectors/demo/EmptySelectionSetIntegrationTest.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.firebase.dataconnect.connectors.demo
+
+import com.google.firebase.dataconnect.connectors.demo.testutil.DemoConnectorIntegrationTestBase
+import com.google.firebase.dataconnect.testutil.property.arbitrary.dataConnect
+import io.kotest.assertions.withClue
+import io.kotest.matchers.nulls.shouldNotBeNull
+import io.kotest.matchers.shouldBe
+import io.kotest.property.Arb
+import io.kotest.property.arbitrary.next
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class EmptySelectionSetIntegrationTest : DemoConnectorIntegrationTestBase() {
+
+  @Test
+  fun queryWithEmptySelectionSet() = runTest {
+    val id = Arb.dataConnect.id().next(rs)
+    val queryResult = connector.getFooByIdEmptySelectionSet.execute(id)
+    queryResult.data shouldBe Unit
+  }
+
+  @Test
+  fun mutationWithEmptySelectionSet() = runTest {
+    val id = Arb.dataConnect.id().next(rs)
+    val barValue = "bar" + Arb.dataConnect.id().next(rs)
+
+    val mutationResult = connector.upsertFooEmptySelectionSet.execute(id) { bar = barValue }
+
+    withClue("mutationResult.data") { mutationResult.data shouldBe Unit }
+    val foo = withClue("getFooById") { connector.getFooById.execute(id).data.foo.shouldNotBeNull() }
+    withClue("foo.bar") { foo.bar shouldBe barValue }
+  }
+}

firebase-dataconnect/emulator/dataconnect/connector/demo/demo_ops.gql

@@ -70,6 +70,16 @@ query GetHardcodedFoo
   }
 }
 
+# This is an example mutation that has an empty selection set (Googlers see b/448629126).
+mutation UpsertFooEmptySelectionSet($id: String!, $bar: String) @auth(level: PUBLIC) {
+  foo_upsert(data: {id: $id, bar: $bar}) @redact
+}
+
+# This is an example query that has an empty selection set (Googlers see b/448629126).
+query GetFooByIdEmptySelectionSet($id: String!) @auth(level: PUBLIC) {
+  foo(id: $id) @redact { bar }
+}
+
 mutation InsertStringVariants(
   $nonNullWithNonEmptyValue: String!,
   $nonNullWithEmptyValue: String!,

firebase-dataconnect/gradleplugin/plugin/src/main/resources/com/google/firebase/dataconnect/gradle/plugin/DataConnectExecutableVersions.json

@@ -1,5 +1,5 @@
 {
-  "defaultVersion": "2.13.0",
+  "defaultVersion": "2.14.0",
   "versions": [
     {
       "version": "1.3.4",
@@ -1026,6 +1026,24 @@
       "os": "linux",
       "size": 29401272,
       "sha512DigestHex": "4918eafe8fb23f357e38ddc4e391c93e58261123b97355de2a55bf4cffa358c1442d527b6a7647e0555c73aa91360ee94c1beac64afe0dbeec546d730f7fa201"
+    },
+    {
+      "version": "2.14.0",
+      "os": "windows",
+      "size": 30091264,
+      "sha512DigestHex": "bdd9e6413898039efc6a983bf6f0c2af1600471b6400583847b48626cf2237f458a81eedb10d398fef6675ed44f9918ea05c7bef7787f29806e0f014b1064d33"
+    },
+    {
+      "version": "2.14.0",
+      "os": "macos",
+      "size": 29602656,
+      "sha512DigestHex": "b520daaa2addb3c4591a6644d1ce685acc4b31c6819a04321cb461f535cf4574cdcc12ed02eb74e557a5e6507c02ca58edfb6e35c6b1785cc340f7632334fe25"
+    },
+    {
+      "version": "2.14.0",
+      "os": "linux",
+      "size": 29524152,
+      "sha512DigestHex": "93b319f60ab09dd6a1e9f2e53e4940b6fbcf4a99ab8fe1577c8c7b903b8c9fb5aad4883b6a319d5213b8b3e3fc2188830c34d51aa6c2c36711465012c2f94762"
     }
   ]
 }