[MOB-10594] Add More Native iOS Tests (#307)

* Test native iOS APM

* Test native iOS Instabug

* Test native iOS bug reporting

* Test native iOS crash reporting

* Test native iOS feature requests

* Test native iOS Instabug log

* Test native iOS replies

* Test native iOS surveys

* Test native iOS ArgsRegistry

* Verify that iOS completion handler are called

* Test native iOS `setValueForStringWithKey` branches

Author: a7medev

example/ios/InstabugSampleTests/ApmApiTests.m

@@ -0,0 +1,150 @@
+#import <XCTest/XCTest.h>
+#import "OCMock/OCMock.h"
+#import "ApmApi.h"
+#import "Instabug/IBGAPM.h"
+#import "Instabug/Instabug.h"
+
+@interface ApmApiTests : XCTestCase
+
+@property (nonatomic, strong) id mAPM;
+@property (nonatomic, strong) ApmApi *api;
+
+@end
+
+@implementation ApmApiTests
+
+- (void)setUp {
+    self.mAPM = OCMClassMock([IBGAPM class]);
+    self.api = [[ApmApi alloc] init];
+}
+
+- (IBGExecutionTrace *)mockTraceWithId:(NSString *)traceId {
+    NSString* name = @"trace-name";
+    IBGExecutionTrace *mTrace = OCMClassMock([IBGExecutionTrace class]);
+
+    OCMStub([self.mAPM startExecutionTraceWithName:name]).andReturn(mTrace);
+
+    [self.api startExecutionTraceId:traceId name:name completion:^(NSString * _Nullable _, FlutterError * _Nullable __) {}];
+
+    return mTrace;
+}
+
+- (void)testSetEnabled {
+    NSNumber *isEnabled = @1;
+    FlutterError *error;
+
+    [self.api setEnabledIsEnabled:isEnabled error:&error];
+
+    OCMVerify([self.mAPM setEnabled:YES]);
+}
+
+- (void)testSetColdAppLaunchEnabled {
+    NSNumber *isEnabled = @1;
+    FlutterError *error;
+
+    [self.api setColdAppLaunchEnabledIsEnabled:isEnabled error:&error];
+
+    OCMVerify([self.mAPM setAppLaunchEnabled:YES]);
+}
+
+- (void)testSetAutoUITraceEnabled {
+    NSNumber *isEnabled = @1;
+    FlutterError *error;
+
+    [self.api setAutoUITraceEnabledIsEnabled:isEnabled error:&error];
+
+    OCMVerify([self.mAPM setAutoUITraceEnabled:YES]);
+}
+
+- (void)testSetLogLevel {
+    NSString *level = @"LogLevel.warning";
+    FlutterError *error;
+
+    [self.api setLogLevelLevel:level error:&error];
+
+    OCMVerify([self.mAPM setLogLevel:IBGLogLevelWarning]);
+}
+
+- (void)testStartExecutionTraceWhenTraceNotNil {
+    NSString *expectedId = @"trace-id";
+    NSString *name = @"trace-name";
+    XCTestExpectation *expectation = [self expectationWithDescription:@"Call completion handler"];
+
+    OCMStub([self.mAPM startExecutionTraceWithName:name]).andReturn([IBGExecutionTrace new]);
+
+    [self.api startExecutionTraceId:expectedId name:name completion:^(NSString *actualId, FlutterError *error) {
+        [expectation fulfill];
+        XCTAssertEqual(actualId, expectedId);
+        XCTAssertNil(error);
+    }];
+
+    OCMVerify([self.mAPM startExecutionTraceWithName:name]);
+    [self waitForExpectations:@[expectation] timeout:5.0];
+}
+
+- (void)testStartExecutionTraceWhenTraceIsNil {
+    NSString *traceId = @"trace-id";
+    NSString *name = @"trace-name";
+    XCTestExpectation *expectation = [self expectationWithDescription:@"Call completion handler"];
+
+    OCMStub([self.mAPM startExecutionTraceWithName:name]).andReturn(nil);
+
+    [self.api startExecutionTraceId:traceId name:name completion:^(NSString *actualId, FlutterError *error) {
+        [expectation fulfill];
+        XCTAssertNil(actualId);
+        XCTAssertNil(error);
+    }];
+
+    OCMVerify([self.mAPM startExecutionTraceWithName:name]);
+    [self waitForExpectations:@[expectation] timeout:5.0];
+}
+
+
+- (void)testSetExecutionTraceAttribute {
+    NSString *traceId = @"trace-id";
+    NSString *key = @"is_premium";
+    NSString *value = @"true";
+    FlutterError *error;
+    id mTrace = [self mockTraceWithId:traceId];
+
+    [self.api setExecutionTraceAttributeId:traceId key:key value:value error:&error];
+
+    OCMVerify([mTrace setAttributeWithKey:key value:value]);
+}
+
+- (void)testEndExecutionTrace {
+    NSString *traceId = @"trace-id";
+    FlutterError *error;
+    IBGExecutionTrace *mTrace = [self mockTraceWithId:traceId];
+
+    [self.api endExecutionTraceId:traceId error:&error];
+
+    OCMVerify([mTrace end]);
+}
+
+- (void)testStartUITrace {
+    NSString *name = @"login";
+    FlutterError *error;
+
+    [self.api startUITraceName:name error:&error];
+
+    OCMVerify([self.mAPM startUITraceWithName:name]);
+}
+
+- (void)testEndUITrace {
+    FlutterError *error;
+    
+    [self.api endUITraceWithError:&error];
+
+    OCMVerify([self.mAPM endUITrace]);
+}
+
+- (void)testEndAppLaunch {
+    FlutterError *error;
+
+    [self.api endAppLaunchWithError:&error];
+
+    OCMVerify([self.mAPM endAppLaunch]);
+}
+
+@end