test(cypress): Adds end to end Cypress tests

[justin-bits]

No description provided.

[justin-bits]

I'm getting linter errors under Travis that I wasn't getting running locally. Is Travis using the latest version of eslint-config-opensphere?

Expected space or tab after '//' in comment spaced-comment will be resolved by this: ngageoint/eslint-config-opensphere#2

[justin-bits]

• Comma between folders to be removed: "lint:js": "eslint --cache 'src/**/*.js', 'cypress/**/*.js'",
• Need to re-run without --cache as npx eslint 'cypress/**/*.js' locally

[justin-bits]

Should pass after this is merged: ngageoint/eslint-config-opensphere#2

@wallw-bits

[justin-bits]

Rebuilt, but still the same linter failures. It appears a new release will need to be created to pickup the changes. https://github.com/ngageoint/eslint-config-opensphere @wallw-bits

[wallw-teal]

The GeoServer and Arc tests need to be refactored to spin up a container and hit that rather than depending on third-party services for tests (this should be easy for GeoServer, possibly less easy for Arc -- but there are better options for live servers there than a local gov one). Additionally, the state file test is also depending on a third-party server when it doesn't have to. All 3 of these tests are failing locally for me.

The smoke-tests/toolbar-right.spec.js spec is also failing for me locally. This is likely because I'm using an updated branch locally. Can you rebase/merge master on your end and verify that you get these errors?

You updated README.md, which is great. Can you also please update our readthedocs documentation under docs/ with similar instructions?

[justin-bits]

Tests should kill http-server on failure.

[justin-bits]

Done:

• .gitignore updated to remove references to editor
• settings.json is now overwritten prior to test execution to ensure a known environment. This corrects a problem with tests failing due to additional servers being added by default on some developer workstations.
• load-state-file.spec.js updated to use less a specific assertion that was causing a flaky test
• Documentation (/docs/getting_started.rst) updated
• Tests that fail will now kill http-server and restore the settings.json

TBD:

• Tests are not incorporated into the build process; will only be triggered manually.

Future PR:

• Setup docker container to eliminate the need for third party server