change structure of invalid input tests

Author: HalemoGPA

tests/test_function_plotter.py

@@ -1,8 +1,10 @@
 import sys
 import os
 import pytest
-from PySide2.QtWidgets import QApplication, QMessageBox
+from PySide2.QtWidgets import QApplication, QMessageBox, QWidget
 from PySide2.QtCore import Qt
+from PySide2.QtCore import Qt
+from PySide2.QtTest import QTest
 
 # Add the src directory to the Python path
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../src")))
@@ -157,51 +159,58 @@ def test_function_with_spaces(function_plotter, qtbot):
 # bad input tests
 
 
-# def test_invalid_function_input_characters(function_plotter, qtbot):
-#     function_plotter.function_input.setText("5*x^3 + 2*x + !")
-#     function_plotter.min_input.setText("0")
-#     function_plotter.max_input.setText("10")
-#     qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
-#     qtbot.waitUntil(lambda: function_plotter.centralWidget().findChildren(QMessageBox))
-#     message_box = function_plotter.centralWidget().findChildren(QMessageBox)[0]
-#     assert "Function contains invalid characters." in message_box.text()
-
-
-# def test_empty_function_input(function_plotter, qtbot):
-#     function_plotter.function_input.setText("")
-#     function_plotter.min_input.setText("0")
-#     function_plotter.max_input.setText("10")
-#     qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
-#     qtbot.waitUntil(lambda: function_plotter.centralWidget().findChildren(QMessageBox))
-#     message_box = function_plotter.centralWidget().findChildren(QMessageBox)[0]
-#     assert "Function cannot be empty." in message_box.text()
-
-
-# def test_invalid_min_max_values(function_plotter, qtbot):
-#     function_plotter.function_input.setText("5*x^3 + 2*x")
-#     function_plotter.min_input.setText("10")
-#     function_plotter.max_input.setText("0")
-#     qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
-#     qtbot.waitUntil(lambda: function_plotter.centralWidget().findChildren(QMessageBox))
-#     message_box = function_plotter.centralWidget().findChildren(QMessageBox)[0]
-#     assert "Min value must be less than Max value." in message_box.text()
-
-
-# def test_non_numeric_min_max_values(function_plotter, qtbot):
-#     function_plotter.function_input.setText("5*x^3 + 2*x")
-#     function_plotter.min_input.setText("a")
-#     function_plotter.max_input.setText("b")
-#     qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
-#     qtbot.waitUntil(lambda: function_plotter.centralWidget().findChildren(QMessageBox))
-#     message_box = function_plotter.centralWidget().findChildren(QMessageBox)[0]
-#     assert "Min and Max values must be numbers." in message_box.text()
-
-
-# def test_empty_min_max_values(function_plotter, qtbot):
-#     function_plotter.function_input.setText("x^2")
-#     function_plotter.min_input.setText("")
-#     function_plotter.max_input.setText("")
-#     qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
-#     qtbot.waitUntil(lambda: function_plotter.centralWidget().findChildren(QMessageBox))
-#     message_box = function_plotter.centralWidget().findChildren(QMessageBox)[0]
-#     assert "Min and Max values cannot be empty." in message_box.text()
+def test_invalid_function_input_characters(function_plotter, qtbot):
+    with qtbot.wait_signal(
+        function_plotter.error_message_signal, timeout=5000
+    ) as blocker:
+        function_plotter.function_input.setText("5*x^3 + 2*x + !")
+        function_plotter.min_input.setText("0")
+        function_plotter.max_input.setText("10")
+        qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
+    assert blocker.args[0] == "Function contains invalid characters."
+
+
+def test_empty_function_input(function_plotter, qtbot):
+    with qtbot.wait_signal(
+        function_plotter.error_message_signal, timeout=5000
+    ) as blocker:
+        function_plotter.function_input.setText("")
+        function_plotter.min_input.setText("0")
+        function_plotter.max_input.setText("10")
+        qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
+    assert blocker.args[0] == "Function cannot be empty."
+
+
+def test_invalid_min_max_values(function_plotter, qtbot):
+    with qtbot.wait_signal(
+        function_plotter.error_message_signal, timeout=5000
+    ) as blocker:
+        function_plotter.function_input.setText("5*x^3 + 2*x")
+        function_plotter.min_input.setText("10")
+        function_plotter.max_input.setText("0")
+        qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
+    assert blocker.args[0] == "Min value must be less than Max value."
+
+
+def test_non_numeric_min_max_values(function_plotter, qtbot):
+    with qtbot.wait_signal(
+        function_plotter.error_message_signal, timeout=5000
+    ) as blocker:
+        function_plotter.function_input.setText("5*x^3 + 2*x")
+        function_plotter.min_input.setText("a")
+        function_plotter.max_input.setText("b")
+        qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
+    assert blocker.args[0] == "Min and Max values must be numbers."
+
+
+def test_empty_min_max_values(function_plotter, qtbot):
+    with qtbot.wait_signal(
+        function_plotter.error_message_signal, timeout=5000
+    ) as blocker:
+        function_plotter.function_input.setText("x^2")
+        function_plotter.min_input.setText("")
+        function_plotter.max_input.setText("")
+        qtbot.mouseClick(function_plotter.plot_button, Qt.LeftButton)
+    assert blocker.args[0] == "Min and Max values cannot be empty."
+
+