sqlwhat/tests/test_basic.py at master · datacamp/sqlwhat · GitHub

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from sqlwhat.test_exercise import test_exercise as te
from tests.helper import Connection
import pytest


@pytest.fixture
def conn():
    return Connection("postgresql")


def test_pass(conn):
    result = {"id": [1], "name": ["greg"]}
    sct_payload = te(
        sct="Ex().check_result()",
        student_code="SELECT * FROM company",
        solution_code="SELECT * FROM company",
        pre_exercise_code="",
        student_conn=conn,
        solution_conn=None,
        student_result=result,
        solution_result=result,
        ex_type="NormalExercise",
        error=[],
    )

    assert sct_payload.get("correct") is True


def test_fail(conn):
    sol_result = {"id": [1], "name": ["greg"]}
    stu_result = {"id": [1, 2], "name": ["greg", "fred"]}
    sct_payload = te(
        sct="Ex().check_result()",
        student_code="SELECT * FROM company",
        solution_code="SELECT * FROM company",
        pre_exercise_code="",
        student_conn=conn,
        solution_conn=None,
        student_result=stu_result,
        solution_result=sol_result,
        ex_type="NormalExercise",
        error=[],
    )

    assert sct_payload.get("correct") is False


xfail_def = pytest.mark.xfail(reason="implement deferrel")


@pytest.mark.parametrize(
    "sct",
    [
        "Ex().check_node('SelectStmt')",
        "Ex().check_node('SelectStmt', priority=99)",
        "Ex().check_node('SelectStmt').check_edge('target_list')",
        "Ex().has_code('SELECT')",
        "Ex().has_equal_ast()",
        "Ex().multi(has_code('SELECT'))",
        "Ex().check_or(has_code('SELECT'))",
        "Ex().check_correct(has_code('SELECT'), has_code('SEL'))",
        "Ex().check_correct(has_code('SELECT'), has_code('SEL').has_code('SEL'))",
        "Ex().check_not(has_code('WHERE'), incorrect_msg='do not write WHERE')",
        "Ex().has_result()",
        "Ex().has_nrows()",
        "Ex().has_ncols()",
        "Ex().check_column('id')",
        "Ex().check_column('id').has_equal_value()",
    ],
)
def test_test_exercise_pass(conn, sct):
    result = {"id": [1], "name": ["greg"]}
    sct_payload = te(
        sct=sct,
        student_code="SELECT * FROM company",
        solution_code="SELECT * FROM company",
        pre_exercise_code="",
        student_conn=conn,
        solution_conn=None,
        student_result=result,
        solution_result=result,
        ex_type="NormalExercise",
        error=[],
    )

    assert sct_payload.get("correct") is True


@pytest.mark.parametrize(
    "sct",
    [
        "Ex().check_node('SelectStmt').check_edge('target_list').has_equal_ast()",
        "Ex().has_code('id', fixed=True)",
        "Ex().has_equal_ast()",
        "Ex().multi(has_code('id'))",
        "Ex().check_or(has_code('id'))",
        "Ex().check_correct(has_code('id'), has_code('i'))",
        "Ex().has_nrows()",
        "Ex().has_ncols()",
        "Ex().check_column('id')",
        "Ex().check_column('name').has_equal_value()",
    ],
)
def test_test_exercise_fail(conn, sct):
    sol_result = {"id": [1], "name": ["greg"]}
    stu_result = {"id2": [1, 2], "name": ["greg", "fred"], "c": [1, 2]}
    sct_payload = te(
        sct=sct,
        student_code="SELECT * FROM company",
        solution_code="SELECT id FROM company",
        pre_exercise_code="",
        student_conn=conn,
        solution_conn=None,
        student_result=stu_result,
        solution_result=sol_result,
        ex_type="NormalExercise",
        error=[],
    )

    assert sct_payload.get("correct") is False


@pytest.mark.parametrize(
    "sct, passes, msg",
    [
        ("", False, "Your code generated an error. Fix it and try again!"),
        ('Ex().has_no_error(incorrect_msg="wow")', False, "wow"),
        ("Ex().allow_error()", True, None),
    ],
)
def test_error_handling(sct, passes, msg):
    sct_payload = te(
        sct=sct,
        student_code="",
        solution_code="",
        pre_exercise_code="",
        student_conn=None,
        solution_conn=None,
        student_result={},
        solution_result={},
        ex_type="NormalExercise",
        error=["an error"],
    )

    assert sct_payload.get("correct") == passes
    if msg:
        assert sct_payload.get("message") == msg