Move test_spec in TensorFlowLiteSwift.podspec.template into subspec, so that the Delegate tests are only done in corresponding delegates.

PiperOrigin-RevId: 313321621
Change-Id: Ibf39faa449315b75e9b61a4b6a91fac14e454232

tensorflow/lite/experimental/swift/TensorFlowLiteSwift.podspec.template

@@ -26,7 +26,16 @@ Pod::Spec.new do |s|
   s.subspec 'Core' do |core|
     core.dependency 'TensorFlowLiteC', "#{s.version}"
     core.source_files = swift_dir + 'Sources/*.swift'
-    core.exclude_files = swift_dir + 'Sources/*Delegate.swift'
+    core.exclude_files = swift_dir + 'Sources/{CoreML,Metal}Delegate.swift'
+
+    core.test_spec 'Tests' do |ts|
+      ts.source_files = swift_dir + 'Tests/*.swift'
+      ts.exclude_files = swift_dir + 'Tests/MetalDelegateTests.swift'
+      ts.resources = [
+        tfl_dir + 'testdata/add.bin',
+        tfl_dir + 'testdata/add_quantized.bin',
+      ]
+    end
   end
 
   s.subspec 'CoreML' do |coreml|
@@ -39,14 +48,13 @@ Pod::Spec.new do |s|
     metal.source_files = swift_dir + 'Sources/MetalDelegate.swift'
     metal.dependency 'TensorFlowLiteC/Metal', "#{s.version}"
     metal.dependency 'TensorFlowLiteSwift/Core', "#{s.version}"
-  end
 
-
-  s.test_spec 'Tests' do |ts|
-    ts.source_files = swift_dir + 'Tests/*.swift'
-    ts.resources = [
-      tfl_dir + 'testdata/add.bin',
-      tfl_dir + 'testdata/add_quantized.bin',
-    ]
+    metal.test_spec 'Tests' do |ts|
+      ts.source_files = swift_dir + 'Tests/{Interpreter,MetalDelegate}Tests.swift'
+      ts.resources = [
+        tfl_dir + 'testdata/add.bin',
+        tfl_dir + 'testdata/add_quantized.bin',
+      ]
+    end
   end
 end

tensorflow/lite/experimental/swift/Tests/InterpreterTests.swift

@@ -50,26 +50,6 @@ class InterpreterTests: XCTestCase {
     XCTAssertNil(interpreter.delegates)
   }
 
-  func testInitWithDelegate() throws {
-    let metalDelegate = MetalDelegate()
-    let interpreter = try Interpreter(modelPath: AddQuantizedModel.path, delegates: [metalDelegate])
-    XCTAssertEqual(interpreter.delegates?.count, 1)
-    XCTAssertNil(interpreter.options)
-  }
-
-  func testInitWithOptionsAndDelegate() throws {
-    var options = Interpreter.Options()
-    options.threadCount = 1
-    let metalDelegate = MetalDelegate()
-    let interpreter = try Interpreter(
-      modelPath: AddQuantizedModel.path,
-      options: options,
-      delegates: [metalDelegate]
-    )
-    XCTAssertNotNil(interpreter.options)
-    XCTAssertEqual(interpreter.delegates?.count, 1)
-  }
-
   func testInputTensorCount() {
     XCTAssertEqual(interpreter.inputTensorCount, AddModel.inputTensorCount)
   }
@@ -268,7 +248,7 @@ class InterpreterOptionsTests: XCTestCase {
 // MARK: - Constants
 
 /// Values for the `add.bin` model.
-private enum AddModel {
+enum AddModel {
   static let info = (name: "add", extension: "bin")
   static let inputTensorCount = 1
   static let outputTensorCount = 1
@@ -301,7 +281,7 @@ private enum AddModel {
 }
 
 /// Values for the `add_quantized.bin` model.
-private enum AddQuantizedModel {
+enum AddQuantizedModel {
   static let info = (name: "add_quantized", extension: "bin")
   static let inputOutputIndex = 0
   static let shape: Tensor.Shape = [2]

tensorflow/lite/experimental/swift/Tests/MetalDelegateTests.swift

@@ -32,6 +32,26 @@ class MetalDelegateTests: XCTestCase {
     XCTAssertTrue(delegate.options.allowsPrecisionLoss)
     XCTAssertEqual(delegate.options.waitType, .active)
   }
+
+  func testInitInterpreterWithDelegate() throws {
+    let metalDelegate = MetalDelegate()
+    let interpreter = try Interpreter(modelPath: AddQuantizedModel.path, delegates: [metalDelegate])
+    XCTAssertEqual(interpreter.delegates?.count, 1)
+    XCTAssertNil(interpreter.options)
+  }
+
+  func testInitInterpreterWithOptionsAndDelegate() throws {
+    var options = Interpreter.Options()
+    options.threadCount = 1
+    let metalDelegate = MetalDelegate()
+    let interpreter = try Interpreter(
+      modelPath: AddQuantizedModel.path,
+      options: options,
+      delegates: [metalDelegate]
+    )
+    XCTAssertNotNil(interpreter.options)
+    XCTAssertEqual(interpreter.delegates?.count, 1)
+  }
 }
 
 class MetalDelegateOptionsTests: XCTestCase {