def test_let_expr():
let_expr = LetExpr(Id("a", Span.EMPTY), Value(5.0, Span.EMPTY),
Id("a", Span.EMPTY), Span.EMPTY)
assert let_expr.eval(Context()).value == 5.0
success("let_expr")
def test_additive_expr():
context = Context()
ast = AdditiveExpr(Value(4.0, Span.EMPTY), AdditiveExpr.ADDITION,
Value(4.0, Span.EMPTY), Span.EMPTY)
assert ast.eval(context).value == 8.0
success("additive_expr")
def test_condition_expr():
context = Context()
test_false_ast = ConditionExpr(Value(0.0, Span.EMPTY), Span.EMPTY)
test_true_ast = ConditionExpr(Value(1.4, Span.EMPTY), Span.EMPTY)
assert test_false_ast.eval(context) == False
assert test_true_ast.eval(context) == True
success("condition_expr")
def test_if_expr():
test_true_expr = IfExpr(ConditionExpr(Value(4.0, Span.EMPTY), Span.EMPTY),
Value(1.0, Span.EMPTY), Value(0.0, Span.EMPTY),
Span.EMPTY)
test_false_expr = IfExpr(ConditionExpr(Value(0.0, Span.EMPTY), Span.EMPTY),
Value(1.0, Span.EMPTY), Value(0.0, Span.EMPTY),
Span.EMPTY)
assert test_true_expr.eval(Context()).value == 1.0
assert test_false_expr.eval(Context()).value == 0.0
success("if_expr")
def test_comparison_expr():
context = Context()
test_gt_true = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.GT,
Value(-1.0, Span.EMPTY), Span.EMPTY)
test_gt_false = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.GT,
Value(1.0, Span.EMPTY), Span.EMPTY)
test_gte_true = ComparisonExpr(Value(-1.0, Span.EMPTY), ComparisonExpr.GTE,
Value(-1.0, Span.EMPTY), Span.EMPTY)
test_gte_false = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.GTE,
Value(1.0, Span.EMPTY), Span.EMPTY)
test_lt_true = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.LT,
Value(1.0, Span.EMPTY), Span.EMPTY)
test_lt_false = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.LT,
Value(-1.0, Span.EMPTY), Span.EMPTY)
test_lte_true = ComparisonExpr(Value(1.0, Span.EMPTY), ComparisonExpr.LTE,
Value(1.0, Span.EMPTY), Span.EMPTY)
test_lte_false = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.LTE,
Value(-1.0, Span.EMPTY), Span.EMPTY)
test_eq_true = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.EQ,
Value(0.0, Span.EMPTY), Span.EMPTY)
test_eq_false = ComparisonExpr(Value(-1.0, Span.EMPTY), ComparisonExpr.EQ,
Value(1.0, Span.EMPTY), Span.EMPTY)
test_neq_true = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.NEQ,
Value(-1.0, Span.EMPTY), Span.EMPTY)
test_neq_false = ComparisonExpr(Value(0.0, Span.EMPTY), ComparisonExpr.NEQ,
Value(0.0, Span.EMPTY), Span.EMPTY)
assert test_gt_true.eval(context) == True
assert test_gt_false.eval(context) == False
assert test_gte_true.eval(context) == True
assert test_gte_false.eval(context) == False
assert test_lt_true.eval(context) == True
assert test_lt_false.eval(context) == False
assert test_lte_true.eval(context) == True
assert test_lte_false.eval(context) == False
assert test_eq_true.eval(context) == True
assert test_eq_false.eval(context) == False
assert test_neq_true.eval(context) == True
assert test_neq_false.eval(context) == False
success("comparison_expr")
def test_simple_lambda_expr():
lambda_expr = LambdaExpr(
Id("lambda", Span.EMPTY),
[Id("a", Span.EMPTY), Id("b", Span.EMPTY)],
AdditiveExpr(Id("a", Span.EMPTY), AdditiveExpr.ADDITION,
Id("b", Span.EMPTY), Span.EMPTY),
FunctionCall(Id("lambda", Span.EMPTY),
[Value(4.0, Span.EMPTY),
Value(1.0, Span.EMPTY)], Span.EMPTY), Span.EMPTY)
assert lambda_expr.eval(Context()).value == 5.0
success("simple_lambda_expr")
def test_interpreter():
global TEST_DIRECTORY
tests = os.listdir(TEST_DIRECTORY)
for test in tests:
with open(f"{TEST_DIRECTORY}/{test}") as f:
text = f.read()
try:
_result = boi.run(text)
# print(f"\n<{test} output>\n{_result.rstrip()}\n</{test} output>")
success(test)
except Exception as e:
failure(test, e)
def test_simple_function_call():
function_ast = Function(
Id("sum", Span.EMPTY),
[Id("a", Span.EMPTY), Id("b", Span.EMPTY)],
AdditiveExpr(Id("a", Span.EMPTY), AdditiveExpr.ADDITION,
Id("b", Span.EMPTY), Span.EMPTY), Span.EMPTY)
program = Program([function_ast])
program.run()
function_call_ast = FunctionCall(Id(
"sum", Span.EMPTY), [Value(4.0, Span.EMPTY),
Value(5.0, Span.EMPTY)], Span.EMPTY)
assert function_call_ast.eval(program.context).value == 9
success("simple_function_call")