Added observables

This commit is contained in:
Sven Heidemann 2023-04-15 16:17:31 +02:00
parent 8dee4d8f70
commit efc9cf9c83
11 changed files with 254 additions and 1 deletions

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@ -6,6 +6,7 @@
"cpl-core": "src/cpl_core/cpl-core.json",
"cpl-discord": "src/cpl_discord/cpl-discord.json",
"cpl-query": "src/cpl_query/cpl-query.json",
"cpl-reactive-extensions": "src/cpl_reactive_extensions/cpl-reactive-extensions.json",
"cpl-translation": "src/cpl_translation/cpl-translation.json",
"set-version": "tools/set_version/set-version.json",
"set-pip-urls": "tools/set_pip_urls/set-pip-urls.json",
@ -14,7 +15,8 @@
"unittests_core": "unittests/unittests_core/unittests_core.json",
"unittests_query": "unittests/unittests_query/unittests_query.json",
"unittests_shared": "unittests/unittests_shared/unittests_shared.json",
"unittests_translation": "unittests/unittests_translation/unittests_translation.json"
"unittests_translation": "unittests/unittests_translation/unittests_translation.json",
"unittests_reactive_extenstions": "unittests/unittests_reactive_extenstions/unittests_reactive_extenstions.json"
},
"Scripts": {
"hello-world": "echo 'Hello World'",

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@ -0,0 +1 @@
# imports

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@ -0,0 +1,46 @@
{
"ProjectSettings": {
"Name": "cpl-reactive-extensions",
"Version": {
"Major": "0",
"Minor": "0",
"Micro": "0"
},
"Author": "",
"AuthorEmail": "",
"Description": "",
"LongDescription": "",
"URL": "",
"CopyrightDate": "",
"CopyrightName": "",
"LicenseName": "",
"LicenseDescription": "",
"Dependencies": [
"cpl-core>=2023.4.0"
],
"DevDependencies": [
"cpl-cli>=2023.4.0"
],
"PythonVersion": ">=3.10.4",
"PythonPath": {
"linux": ""
},
"Classifiers": []
},
"BuildSettings": {
"ProjectType": "library",
"SourcePath": "",
"OutputPath": "../../dist",
"Main": "cpl_reactive_extensions.main",
"EntryPoint": "cpl-reactive-extensions",
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"Included": [],
"Excluded": [
"*/__pycache__",
"*/logs",
"*/tests"
],
"PackageData": {},
"ProjectReferences": []
}
}

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@ -0,0 +1,19 @@
from typing import Callable
from cpl_reactive_extensions.observer import Observer
class Observable:
def __init__(self, callback: Callable):
self._callback = callback
self._subscriptions: list[Callable] = []
def _run_subscriptions(self):
for callback in self._subscriptions:
callback()
def subscribe(self, observer: Observer):
try:
self._callback(observer)
except Exception as e:
observer.error(e)

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@ -0,0 +1,24 @@
from typing import Callable
from cpl_core.type import T
class Observer:
def __init__(self, on_next: Callable, on_error: Callable = None, on_complete: Callable = None):
self._on_next = on_next
self._on_error = on_error if on_error is not None else lambda err: err
self._on_complete = on_complete if on_complete is not None else lambda x: x
def next(self, value: T):
self._on_next(value)
def error(self, ex: Exception):
if self._on_error is None:
return
self._on_error(ex)
def complete(self):
if self._on_complete is None:
return
self._on_complete()

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@ -0,0 +1,17 @@
from cpl_core.type import T
from cpl_reactive_extensions.observable import Observable
class Subject(Observable):
def __init__(self):
Observable.__init__(self)
self._value: T = None
@property
def value(self) -> T:
return self._value
def emit(self, value: T):
self._value = value
self._subscriptions()

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@ -6,6 +6,7 @@ from cpl_core.dependency_injection import ServiceProviderABC
from unittests_cli.cli_test_suite import CLITestSuite
from unittests_core.core_test_suite import CoreTestSuite
from unittests_query.query_test_suite import QueryTestSuite
from unittests_reactive_extenstions.reactive_test_suite import ReactiveTestSuite
from unittests_translation.translation_test_suite import TranslationTestSuite
@ -21,4 +22,5 @@ class Application(ApplicationABC):
runner.run(CoreTestSuite())
runner.run(CLITestSuite())
runner.run(QueryTestSuite())
runner.run(ReactiveTestSuite())
runner.run(TranslationTestSuite())

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@ -0,0 +1 @@
# imports

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@ -0,0 +1,71 @@
import unittest
from threading import Timer
from cpl_reactive_extensions.observable import Observable
from cpl_reactive_extensions.observer import Observer
class ReactiveTestCase(unittest.TestCase):
def setUp(self):
pass
def test_observer(self):
called = 0
has_error = False
completed = False
test_x = 1
def callback(observer: Observer):
nonlocal test_x
observer.next(test_x)
test_x += 1
observer.next(test_x)
test_x += 1
observer.next(test_x)
def complete():
nonlocal test_x
test_x += 1
observer.next(test_x)
observer.complete()
Timer(1.0, complete).start()
observable = Observable(callback)
def on_next(x):
nonlocal called
called += 1
self.assertEqual(test_x, x)
def on_err():
nonlocal has_error
has_error = True
def on_complete():
nonlocal completed
completed = True
self.assertEqual(called, 0)
self.assertFalse(has_error)
self.assertFalse(completed)
observable.subscribe(
Observer(
on_next,
on_err,
on_complete,
)
)
self.assertEqual(called, 3)
self.assertFalse(has_error)
self.assertFalse(completed)
def complete():
self.assertEqual(called, 4)
self.assertFalse(has_error)
self.assertTrue(completed)
Timer(1.0, complete).start()
def test_subject(self):
pass

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@ -0,0 +1,24 @@
import unittest
from unittests_query.enumerable_query_test_case import EnumerableQueryTestCase
from unittests_query.enumerable_test_case import EnumerableTestCase
from unittests_query.iterable_query_test_case import IterableQueryTestCase
from unittests_query.iterable_test_case import IterableTestCase
from unittests_query.sequence_test_case import SequenceTestCase
from unittests_reactive_extenstions.reactive_test_case import ReactiveTestCase
class ReactiveTestSuite(unittest.TestSuite):
def __init__(self):
unittest.TestSuite.__init__(self)
loader = unittest.TestLoader()
self.addTests(loader.loadTestsFromTestCase(ReactiveTestCase))
def run(self, *args):
super().run(*args)
if __name__ == "__main__":
runner = unittest.TextTestRunner()
runner.run(ReactiveTestSuite())

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@ -0,0 +1,46 @@
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"Version": {
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"Minor": "0",
"Micro": "0"
},
"Author": "",
"AuthorEmail": "",
"Description": "",
"LongDescription": "",
"URL": "",
"CopyrightDate": "",
"CopyrightName": "",
"LicenseName": "",
"LicenseDescription": "",
"Dependencies": [
"cpl-core>=2023.4.0"
],
"DevDependencies": [
"cpl-cli>=2023.4.0"
],
"PythonVersion": ">=3.10.4",
"PythonPath": {
"linux": ""
},
"Classifiers": []
},
"BuildSettings": {
"ProjectType": "unittest",
"SourcePath": "",
"OutputPath": "../../dist",
"Main": "unittests_reactive_extenstions.main",
"EntryPoint": "unittests_reactive_extenstions",
"IncludePackageData": false,
"Included": [],
"Excluded": [
"*/__pycache__",
"*/logs",
"*/tests"
],
"PackageData": {},
"ProjectReferences": []
}
}