Fix initializing soft button object error states

SmartDeviceLink/public/SDLSoftButtonObject.m

@@ -36,8 +36,21 @@ - (instancetype)initWithName:(NSString *)name states:(NSArray<SDLSoftButtonState
     self = [super init];
     if (!self) { return nil; }
 
-    // Make sure there aren't two states with the same name
-    if ([self sdl_hasTwoStatesOfSameName:states]) {
+    BOOL hasStateWithInitialName = NO;
+    for (SDLSoftButtonState *state in states) {
+        if ([state.name isEqualToString:initialStateName]) {
+            hasStateWithInitialName = YES;
+            break;
+        }
+    }
+    NSAssert(![SDLSoftButtonObject sdl_hasTwoStatesOfSameName:states], @"A SoftButtonObject must have states with different names.");
+    NSAssert(hasStateWithInitialName, @"A SoftButtonObject must have a state with initialStateName.");
+    if ([SDLSoftButtonObject sdl_hasTwoStatesOfSameName:states]) {
+        SDLLogE(@"Error creating soft button object: the soft button object was created with two states of the same name. Soft button object name: %@, states: %@, initialStateName: %@", name, states, initialStateName);
+        return nil;
+    }
+    if (!hasStateWithInitialName) {
+        SDLLogE(@"Error creating soft button object: the soft button object does not have a state with the specified initial state name. Soft button object name: %@, states: %@, initialStateName: %@", name, states, initialStateName);
         return nil;
     }
 
@@ -121,7 +134,7 @@ - (nullable SDLSoftButtonState *)stateWithName:(NSString *)stateName {
     return nil;
 }
 
-- (BOOL)sdl_hasTwoStatesOfSameName:(NSArray<SDLSoftButtonState *> *)states {
++ (BOOL)sdl_hasTwoStatesOfSameName:(NSArray<SDLSoftButtonState *> *)states {
     for (NSUInteger i = 0; i < states.count; i++) {
         NSString *stateName = states[i].name;
         for (NSUInteger j = (i + 1); j < states.count; j++) {

SmartDeviceLink/public/SDLSoftButtonState.m

@@ -33,6 +33,10 @@ @implementation SDLSoftButtonState
 
 - (instancetype)initWithStateName:(NSString *)stateName text:(nullable NSString *)text image:(nullable UIImage *)image {
     NSParameterAssert((text != nil) || (image != nil));
+    if ((text == nil) && (image == nil)) {
+        SDLLogE(@"Error creating soft button state: the state requires either text or an image, or both. StateName: %@", stateName);
+        return nil;
+    }
 
     SDLArtwork *artwork = [[SDLArtwork alloc] initWithImage:image persistent:YES asImageFormat:SDLArtworkImageFormatPNG];
     return [self initWithStateName:stateName text:text artwork:artwork];
@@ -43,6 +47,10 @@ - (instancetype)initWithStateName:(NSString *)stateName text:(nullable NSString
     if (!self) { return nil; }
 
     NSParameterAssert((text != nil) || (artwork != nil));
+    if ((text == nil) && (artwork == nil)) {
+        SDLLogE(@"Error creating soft button state: the state requires either text or an image, or both. StateName: %@", stateName);
+        return nil;
+    }
 
     _name = stateName;
     _text = text;

SmartDeviceLinkTests/SDLSoftButtonObjectSpec.m

@@ -14,14 +14,11 @@
     __block NSString *testObjectName = @"Test Object Name";
 
     context(@"with a single state", ^{
-        __block SDLSoftButtonState *testSingleState = OCMClassMock([SDLSoftButtonState class]);
         __block NSString *testSingleStateName = @"Test state name";
+        __block SDLSoftButtonState *testSingleState = [[SDLSoftButtonState alloc] initWithStateName:testSingleStateName text:@"Some Text" image:nil];
         __block SDLSoftButton *testSingleStateSoftButton = [[SDLSoftButton alloc] initWithType:SDLSoftButtonTypeText text:@"Some Text" image:nil highlighted:NO buttonId:0 systemAction:SDLSystemActionDefaultAction handler:nil];
 
         beforeEach(^{
-            OCMStub(testSingleState.name).andReturn(testSingleStateName);
-            OCMStub(testSingleState.softButton).andReturn(testSingleStateSoftButton);
-
             testObject = [[SDLSoftButtonObject alloc] initWithName:testObjectName state:testSingleState handler:nil];
         });
 
@@ -77,19 +74,14 @@
     });
 
     context(@"with multiple states", ^{
-        __block SDLSoftButtonState *testFirstState = OCMClassMock([SDLSoftButtonState class]);
         __block NSString *testFirstStateName = @"Test First Name";
+        __block SDLSoftButtonState *testFirstState = [[SDLSoftButtonState alloc] initWithStateName:testFirstStateName text:@"Some Text" image:nil];
         __block SDLSoftButton *testFirstStateSoftButton = [[SDLSoftButton alloc] initWithType:SDLSoftButtonTypeText text:@"Some Text" image:nil highlighted:NO buttonId:0 systemAction:SDLSystemActionDefaultAction handler:nil];
 
-        __block SDLSoftButtonState *testSecondState = OCMClassMock([SDLSoftButtonState class]);
         __block NSString *testSecondStateName = @"Test Second Name";
+        __block SDLSoftButtonState *testSecondState = [[SDLSoftButtonState alloc] initWithStateName:testSecondStateName text:@"Some Second Text" image:nil];
 
         beforeEach(^{
-            OCMStub(testFirstState.name).andReturn(testFirstStateName);
-            OCMStub(testFirstState.softButton).andReturn(testFirstStateSoftButton);
-
-            OCMStub(testSecondState.name).andReturn(testSecondStateName);
-
             testObject = [[SDLSoftButtonObject alloc] initWithName:testObjectName states:@[testFirstState, testSecondState] initialStateName:testFirstStateName handler:nil];
         });