Add tests

To help reduce regressions and bugs, we should consider adding tests to each of the base packages. These tests should be run as part of a CI pipeline

The issue is about adding tests to base packages in a TypeScript wallet adapter project. First, examine the repository structure to identify the base packages. Look for existing test setups or CI configuration files to understand the testing framework. Determine what constitutes a good test for a wallet adapter—likely unit tests for core functions. 'Done' means tests are written and integrated into the CI pipeline.

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