c67b8bccb9
- Expose `read`, `read_str`, and `eval` in Python - Add string evaluation example to interop section of docs - Add test for `eval` - Explain `eof` keyword argument in `read` docstring
86 lines
2.4 KiB
Python
86 lines
2.4 KiB
Python
# Copyright 2017 the authors.
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# This file is part of Hy, which is free software licensed under the Expat
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# license. See the LICENSE.
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import hy
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from hy.importer import (import_file_to_module, import_buffer_to_ast,
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MetaLoader, get_bytecode_path)
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from hy.errors import HyTypeError
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import os
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import ast
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import tempfile
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from fractions import Fraction
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def test_basics():
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"Make sure the basics of the importer work"
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import_file_to_module("basic",
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"tests/resources/importer/basic.hy")
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def test_stringer():
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_ast = import_buffer_to_ast("(defn square [x] (* x x))", '')
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assert type(_ast.body[0]) == ast.FunctionDef
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def test_imports():
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path = os.getcwd() + "/tests/resources/importer/a.hy"
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testLoader = MetaLoader(path)
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def _import_test():
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try:
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return testLoader.load_module("tests.resources.importer.a")
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except:
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return "Error"
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assert _import_test() == "Error"
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assert _import_test() is not None
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def test_import_error_reporting():
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"Make sure that (import) reports errors correctly."
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def _import_error_test():
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try:
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import_buffer_to_ast("(import \"sys\")", '')
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except HyTypeError:
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return "Error reported"
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assert _import_error_test() == "Error reported"
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assert _import_error_test() is not None
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def test_import_autocompiles():
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"Test that (import) byte-compiles the module."
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f = tempfile.NamedTemporaryFile(suffix='.hy', delete=False)
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f.write(b'(defn pyctest [s] (+ "X" s "Y"))')
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f.close()
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try:
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os.remove(get_bytecode_path(f.name))
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except (IOError, OSError):
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pass
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import_file_to_module("mymodule", f.name)
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assert os.path.exists(get_bytecode_path(f.name))
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os.remove(f.name)
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os.remove(get_bytecode_path(f.name))
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def test_eval():
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def eval_str(s):
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return hy.eval(hy.read_str(s))
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assert eval_str('[1 2 3]') == [1, 2, 3]
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assert eval_str('{"dog" "bark" "cat" "meow"}') == {
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'dog': 'bark', 'cat': 'meow'}
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assert eval_str('(, 1 2 3)') == (1, 2, 3)
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assert eval_str('#{3 1 2}') == {1, 2, 3}
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assert eval_str('1/2') == Fraction(1, 2)
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assert eval_str('(.strip " fooooo ")') == 'fooooo'
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assert eval_str(
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'(if True "this is if true" "this is if false")') == "this is if true"
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assert eval_str('(list-comp (pow num 2) (num (range 100)) (= (% num 2) 1))') == [
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pow(num, 2) for num in range(100) if num % 2 == 1]
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