create helper for checking mock listenerController vars

Author: nickolas-dimitrakas

UnitTests/Mocks/MPListenerControllerMock.swift

@@ -46,3 +46,67 @@ class MPListenerControllerMock: NSObject, MPListenerControllerProtocol {
         onAPICalledExpectation?.fulfill()
     }
 }
+
+extension MPListenerControllerMock {
+    
+    /// Verifies that the listener was called with the expected selector and parameters.
+    /// Automatically checks `onAPICalledCalled`, the selector, and up to three parameters.
+    func assertCalled(
+        _ expectedSelector: Selector,
+        param1 expectedParam1: NSObject? = nil,
+        param2 expectedParam2: NSObject? = nil,
+        param3 expectedParam3: NSObject? = nil,
+        file: StaticString = #file,
+        line: UInt = #line
+    ) {
+        XCTAssertTrue(onAPICalledCalled, "Expected onAPICalled to be called", file: file, line: line)
+        
+        guard let actualSelector = onAPICalledApiName else {
+            XCTFail("Expected API name \(expectedSelector), but none was recorded", file: file, line: line)
+            return
+        }
+        XCTAssertEqual(
+            NSStringFromSelector(actualSelector),
+            NSStringFromSelector(expectedSelector),
+            "Expected API selector to match",
+            file: file,
+            line: line
+        )
+        
+        if let expectedParam1 {
+            XCTAssertEqual(
+                onAPICalledParameter1,
+                expectedParam1,
+                "Expected param1 to match for \(expectedSelector)",
+                file: file,
+                line: line
+            )
+        }
+        
+        if let expectedParam2 {
+            XCTAssertEqual(
+                onAPICalledParameter2,
+                expectedParam2,
+                "Expected param2 to match for \(expectedSelector)",
+                file: file,
+                line: line
+            )
+        }
+        
+        if let expectedParam3 {
+            XCTAssertEqual(
+                onAPICalledParameter3,
+                expectedParam3,
+                "Expected param3 to match for \(expectedSelector)",
+                file: file,
+                line: line
+            )
+        }
+    }
+    
+    /// Verifies that no API call occurred.
+    func assertNotCalled(file: StaticString = #file, line: UInt = #line) {
+        XCTAssertFalse(onAPICalledCalled, "Expected onAPICalled NOT to be called", file: file, line: line)
+        XCTAssertTrue(onAPICalledApiNames.isEmpty, "Expected no recorded API names", file: file, line: line)
+    }
+}

UnitTests/SwiftTests/MParticle/MParticleErrorTests.swift

@@ -67,9 +67,7 @@ final class MParticleErrorTests: MParticleTestBase {
         mparticle.logError(errorMessage)
 
         XCTAssertTrue(executor.executeOnMessageQueueAsync)
-        XCTAssertTrue(listenerController.onAPICalledCalled)
-        XCTAssertEqual(listenerController.onAPICalledApiName?.description, "logError:eventInfo:")
-        XCTAssertEqual(listenerController.onAPICalledParameter1 as? String, errorMessage)
+        listenerController.assertCalled(#selector(mparticle.logError(_:eventInfo:)))
 
         XCTAssertTrue(backendController.logErrorCalled)
         XCTAssertNil(backendController.logErrorExceptionParam)
@@ -90,9 +88,7 @@ final class MParticleErrorTests: MParticleTestBase {
         mparticle.logError(errorMessage, eventInfo: keyValueDict)
 
         XCTAssertTrue(executor.executeOnMessageQueueAsync)
-        XCTAssertTrue(listenerController.onAPICalledCalled)
-        XCTAssertEqual(listenerController.onAPICalledApiName?.description, "logError:eventInfo:")
-        XCTAssertEqual(listenerController.onAPICalledParameter1 as? String, errorMessage)
+        listenerController.assertCalled(#selector(mparticle.logError(_:eventInfo:)))
 
         XCTAssertTrue(backendController.logErrorCalled)
         XCTAssertNil(backendController.logErrorExceptionParam)