api: Summarize EquivalentAddressGroup toString #12600
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| /** Unit tests for {@link CallOptions}. */ | ||
| @RunWith(JUnit4.class) | ||
| public class CallOptionsTest { |
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The changes in this test seem unrelated to the PR description. Can you move it to a separate PR?
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Thanks for the feedback. I’ve reverted the CallOptionsTest refactor in this PR since it’s unrelated to the change. I can follow up with a separate PR if we still want that refactor.
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Background
EquivalentAddressGroup.toString() currently prints the full address list, which can become extremely large and noisy for big address sets. This makes logs and test output hard to read and can obscure useful information.
Changes
This PR adds a hard cap to the number of addresses rendered in toString() and summarizes the remainder (e.g., “... N more”). It also adds focused unit tests to validate the large-list and boundary behaviors, and refactors related CallOptionsTest assertions using a small Truth subject for clearer equivalence checks.
Purpose
Keep toString() output readable even with very large address lists
Ensure the summarization behavior is covered by unit tests
Improve clarity of CallOptions equivalence assertions in tests
Note
The summary threshold is defined as a private constant and is only used for output formatting. It does not change the underlying address data or behavior—only the string representation.
Fixes #12593