提升测试覆盖率，多项修复和改进

[Yurunsoft]

close #517

[codecov]

Codecov Report

Patch coverage: 76.79% and project coverage change: +33.30 🎉

Comparison is base (bbdf169) 32.30% compared to head (22b8643) 65.60%.

Additional details and impacted files

@@              Coverage Diff              @@
##                2.1     #518       +/-   ##
=============================================
+ Coverage     32.30%   65.60%   +33.30%     
- Complexity    10070    10968      +898     
=============================================
  Files           846      881       +35     
  Lines         28660    29978     +1318     
=============================================
+ Hits           9259    19668    +10409     
+ Misses        19401    10310     -9091     

Flag	Coverage Δ
unittests	?

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Impacted Files	Coverage Δ
src/Aop/AopAnnotationLoader.php	86.53% <ø> (+86.53%)	⬆️
src/Aop/AopManager.php	72.68% <ø> (+22.90%)	⬆️
src/App.php	85.08% <ø> (+66.98%)	⬆️
src/Async/Async.php	100.00% <ø> (+15.38%)	⬆️
src/Bean/Annotation/AnnotationManager.php	55.11% <ø> (+31.96%)	⬆️
src/Bean/BeanFactory.php	84.18% <ø> (+0.94%)	⬆️
src/Bean/BeanManager.php	100.00% <ø> (+85.18%)	⬆️
src/Bean/PartialManager.php	94.44% <ø> (+44.44%)	⬆️
src/Bean/ReflectionContainer.php	100.00% <ø> (+50.00%)	⬆️
src/Bean/ReflectionUtil.php	89.89% <ø> (+7.72%)	⬆️
... and 103 more

... and 571 files with indirect coverage changes

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