This commit is contained in:
2026-05-15 18:53:00 -05:00
parent d23bca29f8
commit b25d80b44b
6 changed files with 108 additions and 2 deletions

2
.gitignore vendored
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@@ -40,3 +40,5 @@ Thumbs.db
# ForeignThon compiled output
*.compiled.py
# Temporary Tests
tmp/**

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# foreignthon

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@@ -6,7 +6,6 @@ build-backend = "hatchling.build"
name = "foreignthon"
version = "0.1.0"
description = "Write Python in any language. Transpiles foreign-language .xx.py files to standard Python."
readme = "README.md"
license = { text = "MIT" }
requires-python = ">=3.9"
authors = [

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from __future__ import annotations
import ast
from pathlib import Path
import pytest
from foreignthon.transpiler import transpile, _detect_lang, _check_shebang
# ---------------------------------------------------------------------------
# All tests use the real foreignthon-es pack — no mocks
# ---------------------------------------------------------------------------
def es(source: str) -> str:
return transpile(source, "es")
# ---------------------------------------------------------------------------
# Keywords
# ---------------------------------------------------------------------------
def test_if_else():
out = es("si x > 0:\n imprimir(x)\nsino:\n pasar")
assert "if" in out and "else" in out and "pass" in out
assert "si" not in out and "sino" not in out
def test_for_loop():
out = es("para i en rango(10):\n imprimir(i)")
assert "for" in out and "in" in out and "range" in out
def test_function_def():
out = es("definir saludar(nombre):\n retornar nombre")
assert "def" in out and "return" in out
def test_class_def():
out = es("clase Animal:\n pasar")
assert "class" in out and "pass" in out
def test_booleans_and_none():
out = es("x = Verdadero\ny = Falso\nz = Nada")
assert "True" in out and "False" in out and "None" in out
def test_try_except():
out = es(
"intentar:\n"
" imprimir(x)\n"
"excepto ErrorDeValor:\n"
" pasar\n"
"finalmente:\n"
" pasar"
)
assert "try" in out and "except" in out and "finally" in out
assert "ValueError" in out
# ---------------------------------------------------------------------------
# Safety — strings and comments must never be touched
# ---------------------------------------------------------------------------
def test_strings_not_transpiled():
out = es('x = "si esto es para mientras definir"')
assert '"si esto es para mientras definir"' in out
def test_comments_not_transpiled():
out = es("# si para mientras\nx = 1")
assert "# si para mientras" in out
def test_fstring_not_touched():
out = es('imprimir(f"si {x} para")')
assert "si" in out # inside the string, untouched
# ---------------------------------------------------------------------------
# Output is always valid Python
# ---------------------------------------------------------------------------
def test_output_is_valid_python():
out = es(
"definir sumar(a, b):\n"
" retornar a + b\n\n"
"para i en rango(5):\n"
" imprimir(sumar(i, 1))\n"
)
ast.parse(out) # raises if invalid
# ---------------------------------------------------------------------------
# Language detection
# ---------------------------------------------------------------------------
def test_detect_lang_from_extension():
assert _detect_lang(Path("script.es.py")) == "es"
assert _detect_lang(Path("script.ta.py")) == "ta"
def test_detect_lang_bad_extension():
with pytest.raises(ValueError):
_detect_lang(Path("script.py"))
# ---------------------------------------------------------------------------
# Shebang override
# ---------------------------------------------------------------------------
def test_shebang_override():
assert _check_shebang("# foreignthon: fr\nsi x:\n pasar", "es") == "fr"
def test_shebang_default_when_absent():
assert _check_shebang("si x:\n pasar", "es") == "es"

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# foreignthon-es

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@@ -6,7 +6,6 @@ build-backend = "hatchling.build"
name = "foreignthon-es"
version = "0.1.0"
description = "Spanish language pack for ForeignThon."
readme = "README.md"
license = { text = "MIT" }
requires-python = ">=3.9"
authors = [