add unit tests for backend

backend/app/coordinator/schemas/students.py

@@ -54,8 +54,9 @@ class MessageSchema(ma.Schema):
     message = fields.Str(required=True)
     id = fields.Str(required=False)
 
+
 class FileSchema(ma.Schema):
-    file = fields.Raw(type='file', required=True)
+    file = fields.Raw(metadata={'type': 'file'}, required=True)
 
 
 class StudentQuerySchema(ma.Schema):

backend/app/coordinator/schemas/year_group.py

@@ -10,7 +10,7 @@ def validate_mode(value: str) -> str:
 
 
 class YearGroupSchema(Schema):
-    name = fields.Str(validate=validate.Regexp('^\d{4}/\d{4}$'), required=True)
+    name = fields.Str(validate=validate.Regexp(r'^\d{4}/\d{4}$'), required=True)
     mode = fields.Str(validate=validate_mode, required=True)
 
 

backend/app/coordinator/utils.py

@@ -3,7 +3,7 @@ import json
 from collections import defaultdict
 from datetime import datetime, timedelta
 from io import BytesIO
-from typing import Generator, Union, Any, List, Tuple
+from typing import Generator, Union, Any, List, Tuple, TextIO
 from pathlib import Path
 
 import pandas as pd
@@ -30,7 +30,7 @@ def check_columns(df: pd.DataFrame) -> bool:
         return False
 
     flag = True
-    col_types = ['object', 'object', 'int', 'float64', 'object']
+    col_types = ['object', 'object', 'int', 'int64', 'object']
 
     for name, col_type in zip(columns, col_types):
         if not str(df.dtypes[name]).startswith(col_type):
@@ -40,9 +40,9 @@ def check_columns(df: pd.DataFrame) -> bool:
     return flag
 
 
-def parse_csv(file: FileStorage) -> Generator[Student, Any, None]:
+def parse_csv(file: Union[FileStorage, TextIO]) -> Generator[Student, Any, None]:
     df = pd.read_csv(file)
-
+    # raise Exception(df.to_string())
     if not check_columns(df):
         raise InvalidNameOrTypeHeaderException
 

backend/app/utils.py

@@ -23,6 +23,7 @@ def import_models() -> None:
     models_module = "models"
     for dirname in directories:
         try:
-            importlib.import_module(f"app.{dirname}.{models_module}")
+            importlib.import_module(f"app.app.{dirname}.{models_module}")
         except ModuleNotFoundError:
+            print(models_module, dirname)
             warnings.warn(f"Not found module {models_module}.py in package {dirname}")

backend/main.py

@@ -1,5 +1,5 @@
 from dotenv import load_dotenv
-from app import create_app
+from .app import create_app
 
 load_dotenv()
 app = create_app()

backend/pytest.ini

@@ -0,0 +1,4 @@
+[pytest]
+filterwarnings =
+    error
+    ignore::UserWarning

backend/tests/conftest.py

@@ -3,16 +3,24 @@ from typing import Generator
 import pytest
 from flask import Flask
 from flask.testing import FlaskClient
+from flask.ctx import AppContext
 
-from app import create_app
+from ..app import create_app
+from ..app.dependencies import db
 
 
 @pytest.fixture()
-def app() -> Generator[Flask, None, None]:
-    app = create_app("testing")
-    yield app
+def test_app() -> Generator[Flask, None, None]:
+    yield create_app("testing")
 
 
 @pytest.fixture()
-def client(app: Flask) -> FlaskClient:
-    return app.test_client()
+def test_app_ctx_with_db(test_app) -> Generator[AppContext, None, None]:
+    with test_app.app_context() as ctx:
+        db.create_all()
+        yield ctx
+
+
+@pytest.fixture()
+def test_client(test_app: Flask) -> FlaskClient:
+    return test_app.test_client()

backend/tests/test_example.py

@@ -1,2 +0,0 @@
-def test_comparing_two_number():
-    assert 1 == 1

backend/tests/unit_tests/test_utils.py

@@ -0,0 +1,142 @@
+import datetime
+
+import pandas as pd
+import pytest
+from flask import current_app
+
+from ...app.dependencies import db
+from ...app.base.utils import is_allowed_extensions, order_by_column_name, paginate_models
+from ...app.coordinator.utils import check_columns, parse_csv, generate_range_dates, generate_csv
+from ...app.coordinator.exceptions import InvalidNameOrTypeHeaderException
+from ...app.students.models import Student, Group
+
+
+def test_is_allowed_extensions(test_app) -> None:
+    with test_app.app_context():
+        for ext in current_app.config.get('ALLOWED_EXTENSIONS'):
+            assert is_allowed_extensions(f'file.{ext}') is True
+
+
+def test_is_allowed_extensions_with_invalid_extensions(test_app) -> None:
+    with test_app.app_context():
+        assert is_allowed_extensions('file.invalid_ext') is False
+        assert is_allowed_extensions('file') is False
+
+
+def test_order_by_column_name_ascending_mode(test_app) -> None:
+    with test_app.app_context():
+        query = order_by_column_name(Student.query, 'index', 'desc')
+        assert 'ORDER BY students."index"' in str(query)
+
+
+def test_order_by_column_name_descending_mode(test_app) -> None:
+    with test_app.app_context():
+        query = order_by_column_name(Student.query, 'index', 'desc')
+        assert 'ORDER BY students."index" DESC' in str(query)
+
+
+def test_paginate_models(test_app_ctx_with_db) -> None:
+    with test_app_ctx_with_db:
+        st = Student(index=123456, first_name='Dominic', last_name='Smith', pesel='99010109876', email='xxx@gmail.com')
+        st1 = Student(index=123457, first_name='John', last_name='Newton', pesel='99010109871', email='zzz@gmail.com')
+        db.session.add_all([st, st1])
+        db.session.commit()
+        result = paginate_models(1, Student.query, 1)
+
+        items = result.get('items', [])
+        max_pages = result.get('max_pages', 0)
+
+        assert len(items) == 1
+        assert max_pages == 2
+
+
+def test_check_columns() -> None:
+    dummy_data = {'NAZWISKO': ['Smith'], 'IMIE': ['Dominic'], 'INDEKS': [343433], 'PESEL': [90020178654],
+                  'EMAIL': ['domsmi@gmail.com']}
+    df = pd.DataFrame(data=dummy_data)
+    assert check_columns(df) is True
+
+
+def test_check_columns_with_invalid_column_names() -> None:
+    dummy_data = {'col1': [1, 2], 'col2': [2, 3]}
+    df = pd.DataFrame(data=dummy_data)
+    assert check_columns(df) is False
+
+
+def test_check_columns_with_invalid_column_types() -> None:
+    dummy_data = {'NAZWISKO': [999], 'IMIE': ['Dominic'], 'INDEKS': [343433], 'PESEL': [90020178654],
+                  'EMAIL': ['domsmi@gmail.com']}
+    df = pd.DataFrame(data=dummy_data)
+    assert check_columns(df) is False
+
+
+def get_path_to_fake_data(filename: str) -> str:
+    base_dir = current_app.config.get('BASE_DIR', '/')
+    return base_dir / 'tmp_data' / filename
+
+
+def test_parse_csv(test_app) -> None:
+    with test_app.app_context():
+        with open(get_path_to_fake_data('students.csv')) as f:
+            students = sorted(list(parse_csv(f)), key=lambda s: s.index)
+            indexes = [452790 + i for i in range(3)]
+            assert len(students) == len(indexes)
+            for st, idx in zip(students, indexes):
+                assert st.index == idx
+
+
+def test_parse_csv_with_invalid_column_header_name_in_csv_file(test_app) -> None:
+    with test_app.app_context():
+        with open(get_path_to_fake_data('students_column_name.csv')) as f:
+            with pytest.raises(InvalidNameOrTypeHeaderException):
+                parse_csv(f)
+
+
+def test_parse_csv_with_invalid_column_type_in_csv_file(test_app) -> None:
+    with test_app.app_context():
+        with open(get_path_to_fake_data('students_column_type.csv')) as f:
+            with pytest.raises(InvalidNameOrTypeHeaderException):
+                parse_csv(f)
+
+
+def test_generate_range_dates() -> None:
+    start_date = datetime.datetime(2022, 2, 2, 8, 0, 0, 0)
+    end_date = datetime.datetime(2022, 2, 2, 12, 0, 0, 0)
+    step = 30
+    expected_dates_amount = (end_date - start_date).total_seconds() / 60.0 / step
+    dates = list(generate_range_dates(start_date, end_date, step))
+
+    assert expected_dates_amount == len(dates)
+
+    for date in dates:
+        assert start_date <= date < end_date
+
+
+def test_generate_csv(test_app_ctx_with_db) -> None:
+    students_data = [
+        {'first_name': 'Dominic', 'last_name': 'Smith', 'email': 'xxe@gmail.com', 'index': 123456,
+         'pesel': '98070234293'},
+        {'first_name': 'Matthew', 'last_name': 'Cash', 'email': 'zze@gmail.com', 'index': 123455,
+         'pesel': '98070234291'},
+        {'first_name': 'Martin', 'last_name': 'Rose', 'email': 'nne@gmail.com', 'index': 123446,
+         'pesel': '98070234223'},
+    ]
+
+    with test_app_ctx_with_db:
+        students = [Student(**data) for data in students_data]
+        db.session.add_all(students)
+        db.session.commit()
+
+        gr1 = Group(name="new-project")
+        gr2 = Group(name="system-pri")
+        gr1.students.append(students[0])
+        gr1.students.append(students[1])
+        gr2.students.append(students[2])
+        db.session.add_all([gr1, gr2])
+        db.session.commit()
+
+        students_and_groups = [(students[0], gr1), (students[1], gr1), (students[2], gr2)]
+        generated_csv = generate_csv(students_and_groups)
+        for data in students_data:
+            for value in data.values():
+                assert str(value) in generated_csv

backend/tests/unit_tests/test_validators.py

@@ -0,0 +1,29 @@
+import datetime
+
+import pytest
+from marshmallow import ValidationError
+
+from ...app.coordinator.validators import validate_index, validate_datetime_greater_than_now
+
+
+def test_validate_index() -> None:
+    assert validate_index(123456) is None
+
+
+def test_validate_index_with_invalid_value() -> None:
+    with pytest.raises(ValidationError):
+        validate_index(12345)
+
+    with pytest.raises(ValidationError):
+        validate_index(1234567)
+
+
+def test_validate_datetime_greater_than_now() -> None:
+    d = datetime.datetime.now() + datetime.timedelta(days=2)
+    assert validate_datetime_greater_than_now(d) is None
+
+
+def test_validate_datetime_greater_than_now_with_invalid_data() -> None:
+    d = datetime.datetime.now() - datetime.timedelta(days=2)
+    with pytest.raises(ValidationError):
+        validate_datetime_greater_than_now(d)

backend/tmp_data/students.csv

@@ -0,0 +1,4 @@
+NAZWISKO,IMIE,INDEKS,PESEL,EMAIL
+Drzewiński,Patryk,452790,11111111111,patdrz1@st.amu.edu.pl
+Skowronek,Adam,452791,22222222222,adasko8@st.amu.edu.pl
+Kuzmenko,Mariia,452792,33333333333,markuz5@st.amu.edu.pl

backend/tmp_data/students_column_name.csv

@@ -0,0 +1,4 @@
+NAZWISKO,NOTHING,INDEKS,PESEL,EMAIL
+Drzewiński,Patryk,452790,11111111111,patdrz1@st.amu.edu.pl
+Skowronek,Adam,452791,22222222222,adasko8@st.amu.edu.pl
+Kuzmenko,Mariia,452792,33333333333,markuz5@st.amu.edu.pl

backend/tmp_data/students_column_type.csv

@@ -0,0 +1,4 @@
+NAZWISKO,IMIE,INDEKS,PESEL,EMAIL
+0030,Patryk,452790,11111111111,patdrz1@st.amu.edu.pl
+4939,Adam,452791,22222222222,adasko8@st.amu.edu.pl
+3232,Mariia,452792,33333333333,markuz5@st.amu.edu.pl