/
test_haskell.py
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/
test_haskell.py
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from m2cgen import ast
from m2cgen.interpreters import HaskellInterpreter
from tests import utils
def test_if_expr():
expr = ast.IfExpr(
ast.CompExpr(ast.NumVal(1), ast.FeatureRef(0), ast.CompOpType.EQ),
ast.NumVal(2),
ast.NumVal(3))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
func0
where
func0 =
if ((1) == ((input) !! (0)))
then
2
else
3
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_bin_num_expr():
expr = ast.BinNumExpr(
ast.BinNumExpr(
ast.FeatureRef(0), ast.NumVal(-2), ast.BinNumOpType.DIV),
ast.NumVal(2),
ast.BinNumOpType.MUL)
expected_code = """
module Model where
score :: [Double] -> Double
score input =
(((input) !! (0)) / (-2)) * (2)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_dependable_condition():
left = ast.BinNumExpr(
ast.IfExpr(
ast.CompExpr(ast.NumVal(1),
ast.NumVal(1),
ast.CompOpType.EQ),
ast.NumVal(1),
ast.NumVal(2)),
ast.NumVal(2),
ast.BinNumOpType.ADD)
right = ast.BinNumExpr(ast.NumVal(1), ast.NumVal(2), ast.BinNumOpType.DIV)
bool_test = ast.CompExpr(left, right, ast.CompOpType.GTE)
expr = ast.IfExpr(bool_test, ast.NumVal(1), ast.FeatureRef(0))
expected_code_1 = """
module Model where
score :: [Double] -> Double
score input =
func1
where
func0 =
if ((1) == (1))
then
1
else
2
func1 =
if (((func0) + (2)) >= ((1) / (2)))
then
1
else
(input) !! (0)
"""
expected_code_2 = """
module Model where
score :: [Double] -> Double
score input =
func1
where
func1 =
if (((func0) + (2)) >= ((1) / (2)))
then
1
else
(input) !! (0)
func0 =
if ((1) == (1))
then
1
else
2
"""
interpreter = HaskellInterpreter()
actual_code = interpreter.interpret(expr)
# dicts in Python 3.5 have nondeterministic order of keys
utils.assert_code_equal_any_of(
actual_code, expected_code_1, expected_code_2)
def test_nested_condition():
left = ast.BinNumExpr(
ast.IfExpr(
ast.CompExpr(ast.NumVal(1),
ast.NumVal(1),
ast.CompOpType.EQ),
ast.NumVal(1),
ast.NumVal(2)),
ast.NumVal(2),
ast.BinNumOpType.ADD)
bool_test = ast.CompExpr(ast.NumVal(1), left, ast.CompOpType.EQ)
expr_nested = ast.IfExpr(bool_test, ast.FeatureRef(2), ast.NumVal(2))
expr = ast.IfExpr(bool_test, expr_nested, ast.NumVal(2))
expected_code_1 = """
module Model where
score :: [Double] -> Double
score input =
func1
where
func0 =
if ((1) == (1))
then
1
else
2
func1 =
if ((1) == ((func0) + (2)))
then
if ((1) == ((func0) + (2)))
then
(input) !! (2)
else
2
else
2
"""
expected_code_2 = """
module Model where
score :: [Double] -> Double
score input =
func1
where
func1 =
if ((1) == ((func0) + (2)))
then
if ((1) == ((func0) + (2)))
then
(input) !! (2)
else
2
else
2
func0 =
if ((1) == (1))
then
1
else
2
"""
interpreter = HaskellInterpreter()
actual_code = interpreter.interpret(expr)
# dicts in Python 3.5 have nondeterministic order of keys
utils.assert_code_equal_any_of(
actual_code, expected_code_1, expected_code_2)
def test_raw_array():
expr = ast.VectorVal([ast.NumVal(3), ast.NumVal(4)])
expected_code = """
module Model where
score :: [Double] -> [Double]
score input =
[3, 4]
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_multi_output():
expr = ast.IfExpr(
ast.CompExpr(
ast.NumVal(1),
ast.NumVal(1),
ast.CompOpType.EQ),
ast.VectorVal([ast.NumVal(1), ast.NumVal(2)]),
ast.VectorVal([ast.NumVal(3), ast.NumVal(4)]))
expected_code = """
module Model where
score :: [Double] -> [Double]
score input =
func0
where
func0 =
if ((1) == (1))
then
[1, 2]
else
[3, 4]
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_bin_vector_expr():
expr = ast.BinVectorExpr(
ast.VectorVal([ast.NumVal(1), ast.NumVal(2)]),
ast.VectorVal([ast.NumVal(3), ast.NumVal(4)]),
ast.BinNumOpType.ADD)
expected_code = """
module Model where
addVectors :: [Double] -> [Double] -> [Double]
addVectors v1 v2 = zipWith (+) v1 v2
mulVectorNumber :: [Double] -> Double -> [Double]
mulVectorNumber v1 num = [i * num | i <- v1]
score :: [Double] -> [Double]
score input =
addVectors ([1, 2]) ([3, 4])
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_bin_vector_num_expr():
expr = ast.BinVectorNumExpr(
ast.VectorVal([ast.NumVal(1), ast.NumVal(2)]),
ast.NumVal(1),
ast.BinNumOpType.MUL)
expected_code = """
module Model where
addVectors :: [Double] -> [Double] -> [Double]
addVectors v1 v2 = zipWith (+) v1 v2
mulVectorNumber :: [Double] -> Double -> [Double]
mulVectorNumber v1 num = [i * num | i <- v1]
score :: [Double] -> [Double]
score input =
mulVectorNumber ([1, 2]) (1)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_abs_expr():
expr = ast.AbsExpr(ast.NumVal(-1.0))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
abs (-1.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_exp_expr():
expr = ast.ExpExpr(ast.NumVal(1.0))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
exp (1.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_pow_expr():
expr = ast.PowExpr(ast.NumVal(2.0), ast.NumVal(3.0))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
(2.0) ** (3.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_sqrt_expr():
expr = ast.SqrtExpr(ast.NumVal(2.0))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
sqrt (2.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_tanh_expr():
expr = ast.TanhExpr(ast.NumVal(2.0))
expected_code = """
module Model where
score :: [Double] -> Double
score input =
tanh (2.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)
def test_reused_expr():
reused_expr = ast.ExpExpr(ast.NumVal(1.0), to_reuse=True)
expr = ast.BinNumExpr(reused_expr, reused_expr, ast.BinNumOpType.DIV)
expected_code = """
module Model where
score :: [Double] -> Double
score input =
(func0) / (func0)
where
func0 =
exp (1.0)
"""
interpreter = HaskellInterpreter()
utils.assert_code_equal(interpreter.interpret(expr), expected_code)