[Spector] Test case for ARM multiple services

packages/azure-http-specs/specs/azure/resource-manager/multi-service/client.tsp

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+import "./service1.tsp";
+import "./service2.tsp";
+import "@azure-tools/typespec-client-generator-core";
+
+using Versioning;
+using Azure.Core;
+using Azure.ResourceManager;
+using Azure.ClientGenerator.Core;
+
+@client
+@useDependency(Microsoft.Compute.Versions.v2025_04_01, Microsoft.ComputeDisk.Versions.v2025_01_02)
+namespace Azure.ResourceManager.MultiService {
+  @client({
+    service: Microsoft.Compute,
+    parent: Azure.ResourceManager.MultiService,
+  })
+  interface VitrualMachines extends Microsoft.Compute.VirtualMachines {}
+
+  @client({
+    service: Microsoft.ComputeDisk,
+    parent: Azure.ResourceManager.MultiService,
+  })
+  interface Disks extends Microsoft.ComputeDisk.Disks {}
+}

packages/azure-http-specs/specs/azure/resource-manager/multi-service/service1.tsp

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+import "@typespec/rest";
+import "@typespec/versioning";
+import "@azure-tools/typespec-azure-core";
+import "@azure-tools/typespec-azure-resource-manager";
+
+using TypeSpec.Rest;
+using TypeSpec.Http;
+using Azure.Core;
+using Azure.ResourceManager;
+using TypeSpec.Versioning;
+
+/**
+ * Compute Client
+ */
+@armProviderNamespace
+@service(#{ title: "Azure Compute resource management API." })
+@versioned(Versions)
+namespace Microsoft.Compute;
+
+/**
+ * The available API versions.
+ */
+enum Versions {
+  /**
+   * The 2024-11-01 API version.
+   */
+  @armCommonTypesVersion(Azure.ResourceManager.CommonTypes.Versions.v3)
+  v2024_11_01: "2024-11-01",
+
+  /**
+   * The 2025-04-01 API version.
+   */
+  @armCommonTypesVersion(Azure.ResourceManager.CommonTypes.Versions.v3)
+  v2025_04_01: "2025-04-01",
+}
+
+/**
+ * Describes a Virtual Machine.
+ */
+model VirtualMachine is Azure.ResourceManager.TrackedResource<VirtualMachineProperties> {
+  ...ResourceNameParameter<
+    Resource = VirtualMachine,
+    KeyName = "vmName",
+    SegmentName = "virtualMachines",
+    NamePattern = ""
+  >;
+}
+
+model VirtualMachineProperties {
+  @visibility(Lifecycle.Read)
+  provisioningState?: ResourceProvisioningState;
+}
+
+@armResourceOperations
+interface VirtualMachines {
+  /**
+   * Retrieves information about the model view or the instance view of a virtual machine.
+   */
+  get is ArmResourceRead<VirtualMachine>;
+
+  /**
+   * The operation to create or update a virtual machine. Please note some properties can be set only during virtual machine creation.
+   */
+  createOrUpdate is ArmResourceCreateOrUpdateAsync<VirtualMachine>;
+}

packages/azure-http-specs/specs/azure/resource-manager/multi-service/service2.tsp

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+import "@typespec/rest";
+import "@typespec/versioning";
+import "@azure-tools/typespec-azure-core";
+import "@azure-tools/typespec-azure-resource-manager";
+
+using TypeSpec.Rest;
+using TypeSpec.Http;
+using Azure.Core;
+using Azure.ResourceManager;
+using TypeSpec.Versioning;
+
+/**
+ * Compute Client
+ */
+@armProviderNamespace("Microsoft.Compute")
+@service(#{ title: "Azure Compute resource management API." })
+@versioned(Versions)
+namespace Microsoft.ComputeDisk;
+
+/**
+ * The available API versions.
+ */
+enum Versions {
+  /**
+   * The 2024-03-02 API version.
+   */
+  @armCommonTypesVersion(Azure.ResourceManager.CommonTypes.Versions.v3)
+  v2024_03_02: "2024-03-02",
+
+  /**
+   * The 2025-01-02 API version.
+   */
+  @armCommonTypesVersion(Azure.ResourceManager.CommonTypes.Versions.v3)
+  v2025_01_02: "2025-01-02",
+}
+
+/**
+ * Disk resource.
+ */
+model Disk is Azure.ResourceManager.TrackedResource<DiskProperties> {
+  ...ResourceNameParameter<
+    Resource = Disk,
+    KeyName = "diskName",
+    SegmentName = "disks",
+    NamePattern = ""
+  >;
+}
+
+/**
+ * Disk resource properties.
+ */
+model DiskProperties {
+  @visibility(Lifecycle.Read)
+  provisioningState?: ResourceProvisioningState;
+}
+
+@armResourceOperations
+interface Disks {
+  /**
+   * Gets information about a disk.
+   */
+  get is ArmResourceRead<Disk>;
+
+  /**
+   * Creates or updates a disk.
+   */
+  createOrUpdate is ArmResourceCreateOrUpdateAsync<Disk>;
+}

packages/azure-http-specs/specs/azure/resource-manager/multi-service/tspconfig.yaml

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+emit:
+  - "@azure-tools/typespec-autorest"
+options:
+  "@azure-tools/typespec-autorest":
+    omit-unreachable-types: true
+    emitter-output-dir: "{project-root}"
+    azure-resource-provider-folder: "resource-manager"
+    output-file: "{project-root}/openapi.json"