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Add constructor injection support for ParameterizedTest SPIs #4025

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merged 5 commits into from
Sep 25, 2024

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Overview

  • Allow ArgumentsProvider implementations to use constructor injection
  • Allow ArgumentConverter implementations to use constructor injection
  • Allow ArgumentsAggregator implementations to use constructor injection
  • Document constructor injection support in release notes

Resolves #4018.


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Definition of Done

@marcphilipp marcphilipp self-assigned this Sep 25, 2024
@marcphilipp marcphilipp force-pushed the marc/4018-parameterized-spi-constructor-injection branch from 4734bff to a62a2d0 Compare September 25, 2024 11:01
@marcphilipp marcphilipp force-pushed the marc/4018-parameterized-spi-constructor-injection branch from a62a2d0 to 0aef290 Compare September 25, 2024 11:04
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@sbrannen sbrannen left a comment

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Thanks for making the changes in ParameterizedTestSpiInstantiator.

I might propose a different approach to that algorithm, but in the interim I'm approving this PR. 👍

@marcphilipp marcphilipp merged commit 48cd00d into main Sep 25, 2024
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@marcphilipp marcphilipp deleted the marc/4018-parameterized-spi-constructor-injection branch September 25, 2024 11:55
sbrannen added a commit that referenced this pull request Sep 25, 2024
Since Class.getDeclaredConstructors() clones the constructors array AND
makes "child copies" of the constructors, it's usually better to avoid
repeated calls to getDeclaredConstructors() for a single use case. In
addition, it's good to avoid the use of Optional, multiple Streams, and
try-catch blocks if feasible.

This commit reworks ParameterizedTestSpiInstantiator in order to
achieve that by switching to old-school Java constructs like arrays,
for-loops, and if-blocks.

See #4018
See #4025
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Add constructor injection support for ArgumentsProvider, ArgumentConverter, and ArgumentsAggregator
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