def test_update(self):
st = SymbolTable()
self.assertRaises(AssertionError, st.update, "a", 1)
st.store("a", Expression(Type.int(), 1))
st.update("a", 2)
self.assertEqual(Type.int(), st.get_expression("a").type)
self.assertEqual(2, st.get_expression("a").value)
def test_get_expression(self):
st = SymbolTable()
self.assertRaises(AssertionError, st.get_expression, "a")
st.store("a", Expression(Type.list_of(Type.int()), [1]))
self.assertEqual([1], st.get_expression("a").value)
self.assertEqual(1, st.get_expression("a").value[0])
self.assertEqual(Type.list_of(Type.int()), st.get_expression("a").type)
def test_store(self):
st = SymbolTable()
st.store("a", Expression(Type.int(), 1))
self.assertTrue("a" in st)
self.assertEqual(Type.int(), st.get_expression("a").type)
self.assertEqual(1, st.get_expression("a").value)
self.assertRaises(AssertionError, st.store, "a",
Expression(Type.int(), 1))
def test_declare_drone_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { drone a; }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.drone(), NullDrone(), ident="a"))
self.assertEqual(expected, actual)
def test_str(self):
st = SymbolTable()
st.store("a", Expression(Type.int(), 0))
st.store("b", Expression(Type.list_of(Type.boolean()), [True]))
expected = "SymbolTable: {\n" + \
" a -> Expression: { type: int, value: 0, ident: None }\n" + \
" b -> Expression: { type: list[boolean], value: [True], ident: None }\n" + \
"}"
self.assertEqual(expected, str(st))
def test_declare_and_assign_decimal_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { decimal a <- 1.0; }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.decimal(), 1.0, ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_vector_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { vector a <- (1.0, 2.0, -3.0); }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.vector(), [1, 2, -3], ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_boolean_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { boolean a <- true; }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.boolean(), True, ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_string_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { string a <- "\0a"; }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.string(), "\0a", ident="a"))
self.assertEqual(expected, actual)
def test_declare_list_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { list[int] a; }
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.list_of(Type.int()), [],
ident="a"))
self.assertEqual(expected, actual)
def test_eq(self):
st1 = SymbolTable()
st2 = SymbolTable()
self.assertTrue(st1 == st2)
st1.store("a", Expression(Type.int(), 0))
self.assertFalse(st1 == st2)
st2.store("a", Expression(Type.int(), 0))
self.assertTrue(st1 == st2)
self.assertNotEqual(SymbolTable(), None)
def test_assign_ident_vector_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
vector a;
a <- (1.0, -1.0, +1.0);
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.vector(), [1, -1, 1], ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_string_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
string a;
a <- "1";
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.string(), "1", ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_decimal_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
decimal a;
a <- -1.5e10;
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.decimal(), -1.5e10, ident="a"))
self.assertEqual(expected, actual)
def test_vector_with_int_should_return_correct_value(self):
actual = SymbolTable()
generate_commands("""
main () {
vector a <- (1, 2.0, -3);
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a",
Expression(Type.vector(), [1.0, 2.0, -3.0], ident="a"))
self.assertEqual(expected, actual)
def test_list_insert_to_empty_list_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a <- [];
a.insert(0);
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.list_of(Type.int()), [0],
ident="a"))
self.assertEqual(expected, actual)
def test_assign_ident_list_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a;
a <- [1, -1, +1];
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [1, -1, 1], ident="a"))
self.assertEqual(expected, actual)
def test_list_remove_without_index_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a <- [1, 2, 3];
a.remove();
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a",
Expression(Type.list_of(Type.int()), [1, 2], ident="a"))
self.assertEqual(expected, actual)
def test_declare_with_different_variable_name_should_change_symbol_table(
self):
for name in [
"a", "A", "_a", "_1", "_A", "abc", "Abc", "a12", "aA1", "_aA1"
]:
actual = SymbolTable()
generate_commands("""
main () {{ int {}; }}
""".format(name),
symbol_table=actual)
expected = SymbolTable()
expected.store(name, Expression(Type.int(), 0, ident=name))
self.assertEqual(expected, actual)
def test_list_elem_assign_should_update_symbol_table_correctly(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a <- [1, 2, 3];
a[0] <- 4;
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [4, 2, 3], ident="a"))
self.assertEqual(expected, actual)
def test_declare_and_assign_drone_should_change_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () { drone a <- DRONE1; }
""",
drone_config_map={"DRONE1": DefaultDroneConfig()},
symbol_table=actual)
expected = SymbolTable()
expected.store(
"a",
Expression(Type.drone(),
Drone("DRONE1", DefaultDroneConfig()),
ident="a"))
self.assertEqual(expected, actual)
def test_assign_list_elem_to_variable_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a <- [0, 1, 2];
a[0] <- 1;
a[2] <- a[0];
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store(
"a", Expression(Type.list_of(Type.int()), [1, 1, 1], ident="a"))
self.assertEqual(expected, actual)
def test_list_remove_from_nested_list_should_update_symbol_table(self):
actual = SymbolTable()
generate_commands("""
main () {
list[list[int]] a <- [[1], [2], [3]];
a[0].remove();
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store(
"a",
Expression(Type.list_of(Type.list_of(Type.int())), [[], [2], [3]],
ident="a"))
self.assertEqual(expected, actual)
def test_list_should_return_correct_value(self):
actual = SymbolTable()
generate_commands("""
main () {
list[int] a <- [];
list[boolean] b <- [true, false];
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.list_of(Type.int()), [],
ident="a"))
expected.store(
"b",
Expression(Type.list_of(Type.boolean()), [True, False], ident="b"))
self.assertEqual(expected, actual)
def test_list_remove_with_index_should_update_symbol_table(self):
for index in [0, 1, 2]:
actual = SymbolTable()
generate_commands("""
main () {{
list[int] a <- [1, 2, 3];
a.at({}).remove();
}}
""".format(index),
symbol_table=actual)
expected = SymbolTable()
list = [1, 2, 3]
list.pop(index)
expected.store(
"a", Expression(Type.list_of(Type.int()), list, ident="a"))
self.assertEqual(expected, actual)
def test_vector_elem_assign_with_int_should_update_symbol_table_correctly(
self):
actual = SymbolTable()
generate_commands("""
main () {
vector a <- (10, 20, -30);
a.x <- 1;
a.y <- 2;
a.z <- -3;
}
""",
symbol_table=actual)
expected = SymbolTable()
expected.store("a",
Expression(Type.vector(), [1.0, 2.0, -3.0], ident="a"))
self.assertEqual(expected, actual)
def test_repeat_should_keep_updates_but_discard_new_variables(self):
actual = SymbolTable()
actual_commands = generate_commands("""
main () {
int a <- 0;
repeat 5 times {
int b <- 1;
a <- a + 1;
}
}
""", symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.int(), 5, ident="a"))
self.assertEqual(expected, actual)
expected_commands = []
self.assertEqual(expected_commands, actual_commands)
def test_if_with_else_should_keep_updates_but_discard_new_variables(self):
actual = SymbolTable()
actual_commands = generate_commands("""
main () {
int a <- 1;
if false {
} else {
int b <- 1;
a <- 2;
}
}
""", symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(Type.int(), 2, ident="a"))
self.assertEqual(expected, actual)
expected_commands = []
self.assertEqual(expected_commands, actual_commands)
def test_return_correct_type_in_function_should_return_correct_value(self):
types = [Type.int(), Type.decimal(), Type.string(), Type.boolean(), Type.vector(), Type.drone(),
Type.list_of(Type.int()), Type.list_of(Type.decimal()), Type.list_of(Type.list_of(Type.int()))]
for type in types:
actual = SymbolTable()
generate_commands("""
function func() return {} {{
{} a;
return a;
}}
main () {{
{} a <- func();
}}
""".format(type, type, type), symbol_table=actual)
expected = SymbolTable()
expected.store("a", Expression(type, type.default_value, ident="a"))
self.assertEqual(expected, actual)
def test_scope(self):
actual = SymbolTable()
generate_commands("""
procedure proc(int i) {
int j <- 100;
while i < 10 {
i <- i + 1;
}
}
main () {
int i <- 1;
proc(i);
}
""", symbol_table=actual)
expected = SymbolTable()
expected.store("i", Expression(Type.int(), 1, ident="i"))
self.assertEqual(expected, actual)