feat: providertest

[aljo242]

Closes CON-1811

Simple framework for spinning up a testing oracle and running:

• full market map
• single market
• full markets filters to just have one provider

outputs logs to a file and to stdout for debugging purposes.

Fails if there is not an expected price update at every pollingInterval. Currently we do not check the price for any validity, but this could be extended to allow for that too.

func TestProvider(t *testing.T) {
	// take in a market map and filter it to output N market maps with only a single provider
	marketsPerProvider := providertest.FilterMarketMapToProviders(mm)

	// run this check for each provider (here only okx_ws)
	for provider, marketMap := range marketsPerProvider {
		ctx := context.Background()
		p, err := providertest.NewTestingOracle(ctx, provider)
		require.NoError(t, err)

		err = p.RunMarketMap(ctx, marketMap, providertest.DefaultProviderTestConfig())
		require.NoError(t, err)
	}
}```

[codecov]

Codecov Report

Attention: Patch coverage is 15.07937% with 107 lines in your changes missing coverage. Please review.

Project coverage is 56.55%. Comparing base (d14ea9d) to head (5b4e2c7).

Files with missing lines	Patch %	Lines
providers/providertest/provider.go	0.00%	87 Missing ⚠️
providers/providertest/util.go	48.71%	20 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #791      +/-   ##
==========================================
- Coverage   56.98%   56.55%   -0.43%     
==========================================
  Files         210      212       +2     
  Lines       11720    11846     +126     
==========================================
+ Hits         6679     6700      +21     
- Misses       4432     4537     +105     
  Partials      609      609              

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