@deephaven/utils - errors when installing in vscode extension

[bmingles]

I attempted to install @deephaven/utils in the vscode-deephaven extension and get a number of errors:

It looks like there are at least 2 classes of errors here:

• Incompatible CustomEvent type (presumably due to differences in TypeScript version or tsconfig target)
• References to jest. This dependency is not declared in package.json. We may also want to remove the dependency on jest from @deephaven/utils altogether since not all consumers would be using jest as their testing framework.

[mofojed]

References to jest

We should move test code such as TestUtils into it's own directory, and possibly it's own package @deephaven/test-utils to lump a bunch of test utilities together.

[bmingles]

References to jest

We should move test code such as TestUtils into it's own directory, and possibly it's own package @deephaven/test-utils to lump a bunch of test utilities together.

My vote would be a separate package since it's not guaranteed that consumers will use jest at all.

[mofojed]

To clarify my previous comment... files that depend on jest or @testing-library/* or any of our other testing libraries/devDependencies, should not be included in the package build output and should be removed. It may make sense to move them all to a @deephaven/test-utils package (especially TestUtils, which is used by many of our other packages for testing), or simply moved to a folder that is excluded from build output (such as ChartTestUtils, which is not needed in any other package).