Tests talk to Solana for real, and they fail

[j-h-a]

The tests are currently failing, and it appears some use the real NetworkingRouter and actually talk to a GenesysGo devnet node.

This is undesirable for a number of reasons.

Fix is to implement a mock version of SolanaRouter that provides appropriate responses for each test case.

[j-h-a]

@ajamaica I notice on #137 you mentioned you were planning to fix the tests to use a recent block. Is it deliberate to talk to actual devnet during the tests, or could the be improved by injecting a mock NetworkRouter as suggested here? Would it be helpful if I looked into creating such a mock?

[ajamaica]

It will be supper helpful. My Problem with that is that solana RPC changes so ofter that this is a way to let me know is actually working. Its not ideal to use RPC all the time but Mocking is step on the right direction. Is not that hard since I provide the URLSession as a parameter for this exact purpose.

[ajamaica]

We will use Aman for fixing this.

[ajamaica]

There is now a way to mock the networking layer. But Aman may help with this too