def test_correct_top_value(self):
model = ModifiedStackViewModel()
model.set_push_state('One')
model.set_pushed_element(6)
model.push()
model.get_top()
self.assertEqual(6, model.top)
def test_correct_min_value(self):
model = ModifiedStackViewModel()
model.set_push_state('N')
model.set_input_array([5, 1, 6, 7])
model.push()
model.get_min()
self.assertEqual(1, model.min)
def test_when_pushed_value_non_int(self):
model = ModifiedStackViewModel()
model.set_push_state('One')
model.set_pushed_element('PUSH ME')
model.push()
self.assertEqual('Input contains non int value',
model.get_error_message())
def test_pop_from_empty_stack(self):
model = ModifiedStackViewModel()
model.set_pop_size(1)
model.pop()
self.assertEqual('count should be positive', model.get_error_message())
def test_when_pop_size_non_int(self):
model = ModifiedStackViewModel()
model.set_pop_size('AND THEN JUST POP ME')
model.pop()
self.assertEqual('Input contains non int value',
model.get_error_message())
def test_default_stack_is_empty(self):
model = ModifiedStackViewModel()
self.assertEqual(0, model.size())
def setUp(self):
self.view_model = ModifiedStackViewModel(FakeLogger())
class TestViewModelFakeLogging(unittest.TestCase):
def setUp(self):
self.view_model = ModifiedStackViewModel(FakeLogger())
def test_logging_init(self):
self.assertEqual('Stack object was successfully created',
self.view_model.logger.get_last_message())
def test_logging_set_one_input_element(self):
self.view_model.set_pushed_element(5)
self.assertEqual("Setting pushed element to: 5",
self.view_model.logger.get_last_message())
def test_logging_set_array_input(self):
self.view_model.set_input_array([1, 2, 3])
self.assertEqual("Setting input array to: [1, 2, 3]",
self.view_model.logger.get_last_message())
def test_logging_set_push_state(self):
self.view_model.set_push_state("N")
self.assertEqual("Setting push state to: N",
self.view_model.logger.get_last_message())
def test_logging_clear_error_message(self):
self.view_model.clear_error_message()
self.assertEqual("Error message was successfully cleared",
self.view_model.logger.get_last_message())
def test_logging_push_btn_clicked(self):
self.view_model.set_push_state('One')
self.view_model.set_pushed_element(5)
self.view_model.push()
self.assertEqual("Push button was clicked",
self.view_model.logger.get_log_messages()[-3])
def test_logging_push_one_element(self):
self.view_model.set_push_state('One')
self.view_model.set_pushed_element(5)
self.view_model.push()
self.assertEqual(
"Operation push successfully completed with single element. Push: 5",
self.view_model.logger.get_last_message())
def test_logging_push_array(self):
self.view_model.set_push_state('N')
self.view_model.set_input_array([1, 2, 3, 4, 5])
self.view_model.push()
self.assertEqual(
"Operation push successfully completed with array. Push: [1, 2, 3, 4, 5]",
self.view_model.logger.get_last_message())
def test_logging_push_wrong_element(self):
self.view_model.set_push_state('N')
self.view_model.set_input_array('abc')
self.view_model.push()
self.assertEqual("Push error: Input contains non int value",
self.view_model.logger.get_last_message())
def test_logging_full_log(self):
expected_logs = [
'Stack object was successfully created',
'Setting push state to: One', 'Setting pushed element to: 5',
'Push button was clicked',
'Error message was successfully cleared',
'Operation push successfully completed with single element. Push: 5'
]
self.view_model.set_push_state('One')
self.view_model.set_pushed_element(5)
self.view_model.push()
self.assertEqual(expected_logs,
self.view_model.logger.get_log_messages())
def test_logging_set_pop_size(self):
self.view_model.set_pop_size(1)
self.assertEqual("Setting pop size to: 1",
self.view_model.logger.get_last_message())
def test_logging_pop_btn_clicked(self):
self.view_model.set_pop_size(1)
self.view_model.pop()
self.assertEqual("Pop button was clicked",
self.view_model.logger.get_log_messages()[2])
def test_logging_pop_success(self):
self.view_model.set_push_state('N')
self.view_model.set_input_array([1, 2, 3, 4, 5])
self.view_model.push()
self.view_model.set_pop_size(1)
self.view_model.pop()
self.assertEqual("Operation pop successfully completed. Pop: 1",
self.view_model.logger.get_last_message())
def test_logging_pop_exception(self):
self.view_model.set_pop_size('a')
self.view_model.pop()
self.assertEqual("Pop error: Input contains non int value",
self.view_model.logger.get_last_message())
def test_logging_get_top_btn_log(self):
self.view_model.get_top()
self.assertEqual("Getting top button was clicked",
self.view_model.logger.get_log_messages()[1])
def test_logging_get_top_empty_stack(self):
self.view_model.get_top()
self.assertEqual("Result from getting top element: Stack is empty",
self.view_model.logger.get_last_message())
def test_logging_get_top_happy_path(self):
self.view_model.set_push_state('N')
self.view_model.set_input_array([1, 2, 3, 4, 5])
self.view_model.push()
self.view_model.get_top()
self.assertEqual("Result from getting top element: 5",
self.view_model.logger.get_last_message())
def test_logging_get_min_btn_log(self):
self.view_model.get_min()
self.assertEqual("Getting min button was clicked",
self.view_model.logger.get_log_messages()[1])
def test_logging_get_min_empty_stack(self):
self.view_model.get_min()
self.assertEqual("Result from getting min element: Stack is empty",
self.view_model.logger.get_last_message())
def test_logging_get_min_happy_path(self):
self.view_model.set_push_state('N')
self.view_model.set_input_array([1, 2, 3, 4, 5])
self.view_model.push()
self.view_model.get_min()
self.assertEqual("Result from getting min element: 1",
self.view_model.logger.get_last_message())
def test_look_top_from_empty_stack(self):
model = ModifiedStackViewModel()
model.get_top()
self.assertEqual('Stack is empty', model.get_error_message())
class GUIView:
view_model = ModifiedStackViewModel()
def __init__(self):
self.root = tk.Tk()
self.root['bg'] = 'White'
self.root.title('Модифицированный стек')
self.root.geometry('700x400')
self.root.resizable(width=False, height=False)
self.frame = tk.Frame(self.root, bg='White')
self.canvas = tk.Canvas(self.frame)
self.scrollbar = ttk.Scrollbar(self.frame, orient='horizontal', command=self.canvas.xview)
self.scroll_frame = ttk.Frame(self.canvas)
self.scroll_frame.bind(
'<Configure>',
lambda e: self.canvas.configure(
scrollregion=self.canvas.bbox('all')
)
)
self.canvas.create_window((0, 0), window=self.scroll_frame, anchor='nw')
self.canvas.configure(yscrollcommand=self.scrollbar.set)
self.canvas.pack(side='bottom', fill='both', expand=True)
self.scrollbar.pack(side='bottom', fill='x')
self.frame.grid(row=0, column=0)
self.array_frame = tk.Frame(self.scroll_frame, bg='LightBlue1')
self.pop_state = tk.StringVar(value='One')
self.push_state = tk.StringVar(value='One')
self.top = tk.Button(self.scroll_frame, text='top', bg='Azure', width=10, height=1)
self.min = tk.Button(self.scroll_frame, text='min', bg='Azure', width=10, height=1)
self.pop = tk.Button(self.scroll_frame, text='pop', bg='Azure', width=10, height=3)
self.push = tk.Button(self.scroll_frame, text='push', bg='Azure', width=10, height=3)
self.pop_one_element = ttk.Radiobutton(
self.scroll_frame, text='One element', variable=self.pop_state,
value='One', width=15, command=self.pop_strategy)
self.pop_n_elements = ttk.Radiobutton(
self.scroll_frame, text='N element', variable=self.pop_state,
value='N', width=15, command=self.pop_strategy)
self.push_one_element = ttk.Radiobutton(
self.scroll_frame, text='One value', variable=self.push_state,
value='One', width=15, command=self.push_strategy)
self.push_n_elements = ttk.Radiobutton(
self.scroll_frame, text='Array', variable=self.push_state,
value='N', width=15, command=self.push_strategy)
self.stack_size = tk.Label(self.scroll_frame, text='Stack size: 0', bg='Gray21', fg='White')
self.pushed_value = tk.Entry(self.scroll_frame, width=10)
self.pop_size = tk.Entry(self.scroll_frame, width=10)
self.array_size = tk.Entry(self.scroll_frame, width=10)
self.min_value = tk.Label(self.scroll_frame, text='')
self.top_value = tk.Label(self.scroll_frame, text='')
self.enter_array = tk.Label(self.scroll_frame, text='Please, enter array size:')
self.title = tk.Label(self.array_frame, text='Enter your array: ', bg='Gray21', fg='White')
self.box_list = []
self.error = tk.Label(self.scroll_frame, text='Error', bg='Gray21', fg='Red')
self.is_error = False
self.set_weight_to_grid()
self.bind_events()
self.root.mainloop()
def set_weight_to_grid(self):
self.root.grid_rowconfigure(2, minsize=30)
self.root.grid_rowconfigure(5, minsize=30, weight=60)
self.frame.place(relx=0.025, rely=0.025, relwidth=0.95, relheight=0.95)
self.stack_size.grid(row=2, column=0, pady=5)
self.top.grid(row=3, column=0, pady=5)
self.min.grid(row=5, column=0, pady=5)
self.pop.grid(row=7, column=0, pady=5, rowspan=2)
self.push.grid(row=9, column=0, pady=5, rowspan=2)
self.pop_one_element.grid(row=7, column=1, pady=5, padx=10)
self.pop_n_elements.grid(row=8, column=1, pady=5, padx=10)
self.push_one_element.grid(row=9, column=1, pady=5, padx=10)
self.push_n_elements.grid(row=10, column=1, pady=5, padx=10)
self.pushed_value.grid(row=9, column=2, pady=5, padx=10)
def pop_strategy(self):
self.clean_input()
state = self.pop_state.get()
if state == 'One':
self.pop_size.grid_forget()
elif state == 'N':
self.pop_size.grid(row=8, column=2, pady=5, padx=10)
def push_strategy(self):
self.clean_input()
state = self.push_state.get()
if state == 'One':
self.enter_array.grid_forget()
self.array_size.grid_forget()
self.array_frame.grid_forget()
self.pushed_value.grid(row=9, column=2, pady=5, padx=10)
elif state == 'N':
self.pushed_value.grid_forget()
self.enter_array.grid(row=10, column=2, pady=5, padx=10)
self.array_size.grid(row=10, column=3, pady=5, padx=10)
def bind_events(self):
self.array_size.bind('<KeyRelease>', self.create_windows_array_elements)
self.top.bind('<Button-1>', self.top_button_clicked)
self.min.bind('<Button-1>', self.min_button_clicked)
self.pop.bind('<Button-1>', self.pop_button_clicked)
self.push.bind('<Button-1>', self.push_button_clicked)
def create_windows_array_elements(self, event):
self.array_frame.grid(row=11, column=0, columnspan=1000, pady=5, padx=10)
for box in self.box_list:
box.destroy()
self.box_list = []
try:
array_size = int(self.array_size.get())
current_size = array_size
self.title.grid(row=0, column=0, pady=5, padx=10)
for current_box in range(current_size - 1):
self.box_list.append(tk.Entry(self.array_frame, bg='gray21', fg='white', bd='1', width='3'))
self.box_list[-1].grid(row=0, column=2 + current_box)
self.box_list.append(tk.Entry(self.array_frame, bg='gray21', fg='white', bd='1', width='3'))
self.box_list[-1].grid(row=0, column=2 + current_size - 1, pady=5, padx=(0, 10))
self.view_model.set_error_message(None)
except Exception:
self.view_model.set_error_message('Error: wrong array size')
self.mvvm_back_bind()
def top_button_clicked(self, event):
self.view_model.get_top()
self.mvvm_back_bind_top()
self.clean_input()
def min_button_clicked(self, event):
self.view_model.get_min()
self.mvvm_back_bind_min()
self.clean_input()
def pop_button_clicked(self, event):
self.mvvm_bind_btn_pop()
self.view_model.pop()
self.mvvm_back_bind()
self.clean_input()
def push_button_clicked(self, event):
self.mvvm_bind_btn_push()
self.view_model.push()
self.mvvm_back_bind()
self.clean_input()
def mvvm_back_bind_top(self):
self.mvvm_back_bind()
if not self.is_error:
self.top_value.grid(row=3, column=1)
self.top_value.config(text='Top value: {}'.format(self.view_model.top))
def mvvm_back_bind_min(self):
self.mvvm_back_bind()
if not self.is_error:
self.min_value.grid(row=5, column=1)
self.min_value.config(text='Min value: {}'.format(self.view_model.min))
def mvvm_bind_btn_pop(self):
self.hide_all_labels()
if self.pop_state.get() == 'One':
self.view_model.set_pop_size(1)
elif self.pop_state.get() == 'N':
self.view_model.set_pop_size(self.pop_size.get())
def mvvm_bind_btn_push(self):
self.hide_all_labels()
self.view_model.set_push_state(self.push_state.get())
if self.push_state.get() == 'One':
self.view_model.set_pushed_element(self.pushed_value.get())
elif self.push_state.get() == 'N':
box_values = [box.get() for box in self.box_list]
self.view_model.set_input_array(box_values)
def mvvm_back_bind(self):
message = get_error_text(self.view_model.get_error_message())
self.is_error = False
if message:
self.error.config(text='Error: {}\n'.format(message))
self.error.grid(row=1, column=1, rowspan=2, columnspan=2)
self.is_error = True
else:
self.error.grid_forget()
self.stack_size.config(text='Stack size: {}\n'.format(self.view_model.size()))
def clean_input(self):
self.pop_size.delete(0, tk.END)
self.pop_size.insert(0, '')
self.pushed_value.delete(0, tk.END)
self.pushed_value.insert(0, '')
self.array_size.delete(0, tk.END)
self.array_size.insert(0, '')
self.array_frame.grid_forget()
def hide_all_labels(self):
self.top_value.grid_forget()
self.min_value.grid_forget()
self.error.grid_forget()
