def test_osh_selector_var_sub(state):
target = state.ast_dispatcher.nodes.get('SimpleVarSub')
cl = check_node(state, "SimpleCommand")
word = check_field(cl, 'words', 2)
varsub = check_field(word, 'parts', 0)
assert isinstance(varsub.student_ast, target)
assert varsub.student_ast.token == "$b"
def test_check_field_antlr_exception_skips(dialect_name):
state = prepare_state("SELECT x FROM ___!", "SELECT x FROM ___!",
dialect_name)
assert isinstance(state.student_ast,
state.ast_dispatcher.ast.AntlrException)
select = check_field(state, "where", 0) # should be skipped
assert select is state
def test_has_equal_ast_field_fail():
state = prepare_state('SELECT id, name FROM Trips',
"SELECT name FROM Trips")
sel = cf.check_node(state, "SelectStmt", 0)
tl = cf.check_field(sel, "target_list", 0)
with pytest.raises(TF) as exc_info:
has_equal_ast(tl)
print_message(exc_info)
def test_check_field_index_none_fail():
state = prepare_state("SELECT a, b FROM b WHERE a < 10", "SELECT a FROM b")
sel = check_node(state, 'SelectStmt')
with pytest.raises(TF) as exc_info:
from_field = check_field(sel, 'where_clause')
print_message(exc_info)
def test_student_typed_subset_re_pass(state_tst):
select = check_node(state_tst, "SelectStmt", 0)
where = check_field(select, "where_clause")
with pytest.raises(TF):
cf.test_student_typed(where, "id > [a-z]")
def test_student_typed_subset_re_pass(state_tst):
select = check_node(state_tst, "SelectStmt", 0)
where = check_field(select, "where_clause")
cf.test_student_typed(where, "id > [0-9]")
def test_student_typed_fixed_subset_fail(state_tst):
select = check_node(state_tst, "SelectStmt", 0)
where = check_field(select, "where_clause")
with pytest.raises(TF):
cf.test_student_typed(where, "WHERE id > 4", fixed=True)
def test_check_field_index_fail():
state = prepare_state("SELECT id, name FROM Trips", "SELECT id FROM Trips")
select = check_node(state, "SelectStmt", 0)
with pytest.raises(TF) as exc_info:
check_field(select, "target_list", 1)
print_message(exc_info)
def test_check_field_index_pass():
state = prepare_state("SELECT id, name FROM Trips",
"SELECT id, name FROM Trips")
select = check_node(state, "SelectStmt", 0)
check_field(select, "target_list", 1)
def test_check_field_fail():
state = prepare_state("SELECT id FROM Trips WHERE id > 3",
"SELECT id FROM Trips WHERE id>4")
select = check_node(state, "SelectStmt", 0)
check_field(select, "where_clause")
def test_check_node_from_list():
state = prepare_state("SELECT a, b, c FROM x", "SELECT a, b, c FROM x")
sel = check_node(state, "SelectStmt", 0)
tl = check_field(sel, "target_list")
check_node(tl, "Identifier")
def test_has_equal_ast_subcode(state):
word = check_field(check_node(state, 'SimpleCommand'), 'words', 0)
has_equal_ast(word)
def test_osh_selector_fail(state):
child = check_node(state, 'SimpleCommand')
with pytest.raises(TF):
check_field(child, 'words', 4)
def test_osh_selector_result(state):
target = state.ast_dispatcher.nodes.get('CompoundWord')
cl = check_node(state, "SimpleCommand")
cmd = check_field(cl, 'words', 0)
assert isinstance(cmd.student_ast, target)
assert cmd.student_ast.parts[0].token == "echo"