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book_stuff/test_student.py

@@ -0,0 +1,90 @@
+import pytest
+from student import Student  # assumes Student class is in student.py
+
+
+# ---------- FIXTURES ----------
+@pytest.fixture
+def valid_student():
+    """Fixture for a valid student object"""
+    return Student("Alice", 123456, 4.0)
+
+def test_create_valid_student(valid_student):
+    assert valid_student.get_name() == "Alice"
+    assert valid_student.get_gNumber() == 123456
+    assert valid_student.get_gpa() == 4.0
+
+
+def test_update_name(valid_student):
+    valid_student.set_name("Bob")
+    assert valid_student.get_name() == "Bob"
+
+
+def test_update_gNumber(valid_student):
+    valid_student.set_gNumber(654321)
+    assert valid_student.get_gNumber() == 654321
+
+
+def test_update_gpa(valid_student):
+    valid_student.set_gpa(5.5)
+    assert valid_student.get_gpa() == 5.5
+
+
+# ---------- NAME VALIDATION ----------
+@pytest.mark.parametrize("invalid_name", [
+    "",                          # empty string
+    "A" * 256,                   # too long
+    "Alice123",                  # contains digits
+    "Alice!",                    # contains special character
+    123,                         # not a string
+])
+def test_invalid_name_raises(invalid_name):
+    with pytest.raises((ValueError, TypeError)):
+        Student(invalid_name, 123456, 3.0)
+
+
+# ---------- gNumber VALIDATION ----------
+@pytest.mark.parametrize("invalid_gNumber", [
+    99999,     # too small
+    1000000,   # too large
+    "123456",  # not an int
+    12.34,     # float
+])
+def test_invalid_gNumber_raises(invalid_gNumber):
+    with pytest.raises((ValueError, TypeError)):
+        Student("Charlie", invalid_gNumber, 3.5)
+
+
+def test_boundary_gNumber_valid():
+    s1 = Student("David", 100000, 2.0)
+    s2 = Student("Eve", 999999, 3.0)
+    assert s1.get_gNumber() == 100000
+    assert s2.get_gNumber() == 999999
+
+
+# ---------- GPA VALIDATION ----------
+@pytest.mark.parametrize("invalid_gpa", [
+    -0.1,      # below range
+    6.1,       # above range
+    "4.0",     # string instead of number
+    None,      # NoneType
+])
+def test_invalid_gpa_raises(invalid_gpa):
+    with pytest.raises((ValueError, TypeError)):
+        Student("Frank", 222222, invalid_gpa)
+
+
+def test_boundary_gpa_valid():
+    s1 = Student("Grace", 333333, 0.0)
+    s2 = Student("Heidi", 444444, 6.0)
+    assert s1.get_gpa() == 0.0
+    assert s2.get_gpa() == 6.0
+
+
+# ---------- STRING REPRESENTATION ----------
+def test_str_representation(valid_student):
+    s = str(valid_student)
+    assert "Alice" in s
+    assert "123456" in s
+    assert "4.00" in s
+
+