mirror of
https://github.com/pyscript/pyscript.git
synced 2025-12-20 02:37:41 -05:00
82e5b64bad
Before this PR, the following test passed:
def test_pyscript_hello(self):
self.pyscript_run(
"""
<script type="py">
raise Exception("hello")
</script>
""")
What happens is that we intercept the Python exception and display a nice banner on the DOM, but the test itself passes. This is error prone: if we have Python exceptions on the page, the test should fail by default, and we should have a way to silence it in case those exceptions are expected.
This PR treats Python errors as we treat JS errors: unhandled exceptions cause the test to fail, but you can silence them by calling self.check_py_errors(), exactly as you can call self.check_js_errors().
364 lines
12 KiB
Python
364 lines
12 KiB
Python
import re
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import pytest
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from .support import PageErrors, PyScriptTest, skip_worker
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class TestBasic(PyScriptTest):
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def test_pyscript_hello(self):
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self.pyscript_run(
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"""
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<script type="py">
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import js
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js.console.log('hello pyscript')
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</script>
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"""
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)
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assert self.console.log.lines == ["hello pyscript"]
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def test_execution_thread(self):
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self.pyscript_run(
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"""
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<!-- we don't really need anything here, we just want to check that
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pyscript starts -->
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"""
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)
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assert self.execution_thread in ("main", "worker")
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if self.execution_thread == "main":
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where = "the main thread"
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elif self.execution_thread == "worker":
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where = "a web worker"
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expected = f"[pyscript/main] Starting the interpreter in {where}"
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assert expected in self.console.info.lines
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def test_no_cors_headers(self):
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self.disable_cors_headers()
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self.pyscript_run(
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"""
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<!-- we don't really need anything here, we just want to check that
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pyscript starts -->
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""",
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wait_for_pyscript=False,
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)
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assert self.headers == {}
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if self.execution_thread == "worker":
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expected_alert_banner_msg = (
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'(PY1000): When execution_thread is "worker", the site must be cross origin '
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"isolated, but crossOriginIsolated is false. To be cross origin isolated, "
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"the server must use https and also serve with the following headers: "
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'{"Cross-Origin-Embedder-Policy":"require-corp",'
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'"Cross-Origin-Opener-Policy":"same-origin"}. '
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"The problem may be that one or both of these are missing."
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)
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alert_banner = self.page.wait_for_selector(".alert-banner")
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assert expected_alert_banner_msg in alert_banner.inner_text()
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else:
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self.assert_no_banners()
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def test_print(self):
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self.pyscript_run(
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"""
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<py-script>
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print('hello pyscript')
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</py-script>
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"""
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)
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assert self.console.log.lines[-1] == "hello pyscript"
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def test_python_exception(self):
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self.pyscript_run(
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"""
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<py-script>
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print('hello pyscript')
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raise Exception('this is an error')
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</py-script>
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"""
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)
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assert "hello pyscript" in self.console.log.lines
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self.check_py_errors("Exception: this is an error")
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#
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# check that we sent the traceback to the console
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tb_lines = self.console.error.lines[-1].splitlines()
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assert tb_lines[0] == "[pyexec] Python exception:"
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assert tb_lines[1] == "Traceback (most recent call last):"
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assert tb_lines[-1] == "Exception: this is an error"
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#
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# check that we show the traceback in the page. Note that here we
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# display the "raw" python traceback, without the "[pyexec] Python
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# exception:" line (which is useful in the console, but not for the
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# user)
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pre = self.page.locator("py-script > pre")
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tb_lines = pre.inner_text().splitlines()
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assert tb_lines[0] == "Traceback (most recent call last):"
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assert tb_lines[-1] == "Exception: this is an error"
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def test_python_exception_in_event_handler(self):
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self.pyscript_run(
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"""
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<button py-click="onclick()">Click me</button>
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<py-script>
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def onclick():
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raise Exception("this is an error inside handler")
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</py-script>
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"""
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)
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self.page.locator("button").click()
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self.wait_for_console(
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"Exception: this is an error inside handler", match_substring=True
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)
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self.check_py_errors("Exception: this is an error inside handler")
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## error in console
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tb_lines = self.console.error.lines[-1].splitlines()
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assert tb_lines[0] == "[pyexec] Python exception:"
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assert tb_lines[1] == "Traceback (most recent call last):"
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assert tb_lines[-1] == "Exception: this is an error inside handler"
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## error in DOM
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tb_lines = self.page.locator(".py-error").inner_text().splitlines()
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assert tb_lines[0] == "Traceback (most recent call last):"
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assert tb_lines[-1] == "Exception: this is an error inside handler"
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def test_execution_in_order(self):
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"""
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Check that they py-script tags are executed in the same order they are
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defined
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"""
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self.pyscript_run(
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"""
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<py-script>import js; js.console.log('one')</py-script>
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<py-script>js.console.log('two')</py-script>
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<py-script>js.console.log('three')</py-script>
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<py-script>js.console.log('four')</py-script>
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"""
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)
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assert self.console.log.lines[-4:] == [
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"one",
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"two",
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"three",
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"four",
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]
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def test_escaping_of_angle_brackets(self):
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"""
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Check that py-script tags escape angle brackets
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"""
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self.pyscript_run(
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"""
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<py-script>import js; js.console.log(1<2, 1>2)</py-script>
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<py-script>js.console.log("<div></div>")</py-script>
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"""
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)
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assert self.console.log.lines[-2:] == ["true false", "<div></div>"]
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def test_packages(self):
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self.pyscript_run(
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"""
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<py-config>
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# we use asciitree because it's one of the smallest packages
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# which are built and distributed with pyodide
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packages = ["asciitree"]
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</py-config>
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<py-script>
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import js
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import asciitree
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js.console.log('hello', asciitree.__name__)
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</py-script>
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"""
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)
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assert self.console.log.lines[-3:] == [
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"Loading asciitree", # printed by pyodide
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"Loaded asciitree", # printed by pyodide
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"hello asciitree", # printed by us
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]
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@skip_worker("FIXME: the banner doesn't appear")
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def test_non_existent_package(self):
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self.pyscript_run(
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"""
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<py-config>
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packages = ["i-dont-exist"]
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</py-config>
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""",
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wait_for_pyscript=False,
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)
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expected_alert_banner_msg = (
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"(PY1001): Unable to install package(s) 'i-dont-exist'. "
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"Unable to find package in PyPI. Please make sure you have "
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"entered a correct package name."
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)
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alert_banner = self.page.wait_for_selector(".alert-banner")
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assert expected_alert_banner_msg in alert_banner.inner_text()
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self.check_py_errors("Can't fetch metadata for 'i-dont-exist'")
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@skip_worker("FIXME: the banner doesn't appear")
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def test_no_python_wheel(self):
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self.pyscript_run(
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"""
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<py-config>
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packages = ["opsdroid"]
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</py-config>
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""",
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wait_for_pyscript=False,
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)
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expected_alert_banner_msg = (
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"(PY1001): Unable to install package(s) 'opsdroid'. "
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"Reason: Can't find a pure Python 3 Wheel for package(s) 'opsdroid'"
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)
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alert_banner = self.page.wait_for_selector(".alert-banner")
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assert expected_alert_banner_msg in alert_banner.inner_text()
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self.check_py_errors("Can't find a pure Python 3 wheel for 'opsdroid'")
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def test_dynamically_add_py_script_tag(self):
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self.pyscript_run(
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"""
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<script>
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function addPyScriptTag() {
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let tag = document.createElement('py-script');
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tag.innerHTML = "print('hello world')";
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document.body.appendChild(tag);
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}
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</script>
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<button onclick="addPyScriptTag()">Click me</button>
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"""
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)
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self.page.locator("button").click()
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self.page.wait_for_selector("py-terminal")
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assert self.console.log.lines[-1] == "hello world"
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def test_py_script_src_attribute(self):
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self.writefile("foo.py", "print('hello from foo')")
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self.pyscript_run(
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"""
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<py-script src="foo.py"></py-script>
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"""
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)
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assert self.console.log.lines[-1] == "hello from foo"
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def test_py_script_src_not_found(self):
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with pytest.raises(PageErrors) as exc:
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self.pyscript_run(
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"""
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<py-script src="foo.py"></py-script>
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"""
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)
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assert "Failed to load resource" in self.console.error.lines[0]
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error_msgs = str(exc.value)
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expected_msg = "(PY0404): Fetching from URL foo.py failed with error 404"
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assert expected_msg in error_msgs
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assert self.assert_banner_message(expected_msg)
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pyscript_tag = self.page.locator("py-script")
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assert pyscript_tag.inner_html() == ""
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def test_js_version(self):
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self.pyscript_run(
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"""
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<py-script>
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</py-script>
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"""
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)
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self.page.add_script_tag(content="console.log(pyscript.version)")
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assert (
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re.match(r"\d{4}\.\d{2}\.\d+(\.[a-zA-Z0-9]+)?", self.console.log.lines[-1])
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is not None
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)
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def test_python_version(self):
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self.pyscript_run(
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"""
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<py-script>
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import js
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js.console.log(pyscript.__version__)
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js.console.log(str(pyscript.version_info))
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</py-script>
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"""
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)
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assert (
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re.match(r"\d{4}\.\d{2}\.\d+(\.[a-zA-Z0-9]+)?", self.console.log.lines[-2])
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is not None
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)
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assert (
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re.match(
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r"version_info\(year=\d{4}, month=\d{2}, "
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r"minor=\d+, releaselevel='([a-zA-Z0-9]+)?'\)",
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self.console.log.lines[-1],
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)
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is not None
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)
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@skip_worker("FIXME: showWarning()")
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def test_assert_no_banners(self):
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"""
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Test that the DOM doesn't contain error/warning banners
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"""
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self.pyscript_run(
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"""
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<py-script>
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from _pyscript_js import showWarning
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showWarning("hello")
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showWarning("world")
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</py-script>
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"""
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)
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with pytest.raises(AssertionError, match="Found 2 alert banners"):
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self.assert_no_banners()
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def test_getPySrc_returns_source_code(self):
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self.pyscript_run(
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"""
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<py-script>
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print("hello world!")
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</py-script>
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"""
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)
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pyscript_tag = self.page.locator("py-script")
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assert pyscript_tag.inner_html() == ""
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assert (
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pyscript_tag.evaluate("node => node.getPySrc()")
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== 'print("hello world!")\n'
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)
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def test_py_attribute_without_id(self):
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self.pyscript_run(
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"""
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<button py-click="myfunc()">Click me</button>
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<py-script>
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def myfunc():
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print("hello world!")
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</py-script>
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"""
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)
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btn = self.page.wait_for_selector("button")
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btn.click()
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self.wait_for_console("hello world!")
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assert self.console.log.lines[-1] == "hello world!"
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assert self.console.error.lines == []
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def test_py_mount_shows_deprecation_warning(self):
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# last non-deprecated version: 2023.03.1
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self.pyscript_run(
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"""
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<div id="foo" py-mount></div>
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"""
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)
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banner = self.page.locator(".alert-banner")
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expected_message = (
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'The "py-mount" attribute is deprecated. '
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+ "Please add references to HTML Elements manually in your script."
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)
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assert banner.inner_text() == expected_message
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