AssertChannelEmpty verifies that a channel has no value currently.

AssertContainsBlock will fail a test if the block is not in the given block list.

AssertContainsPeer will fail a test if the peer is not in the given peer list.

AssertDoesReceive verifies that a channel returns some value before the given context closes.

AssertDoesReceiveFirst asserts that the given channel receives a value before any of the other channels specified.

AssertReceive verifies that a channel returns a value before the given context closes, and writes into into out, which should be a pointer to the value type.

AssertReceiveFirst verifies that a channel returns a value on the specified channel before the other channels, and writes the value into out, which should be a pointer to the value type.

AssertSends attempts to send the given input value to the given channel before the given context closes.

AttributeValueInTraceSpan is a test helper that asserts that at a span contains an attribute with the name provided, and returns the value of that attribute for further inspection.

CollectErrors is just a utility to convert an error channel into an array.

CollectResponses is just a utility to convert a graphsync response progress channel into an array.

ContainsBlock returns true if a block is found n a list of blocks.

ContainsPeer returns true if a peer is found n a list of peers.

EventAsException is a test helper that converts a trace event to an ExceptionEvent for easier inspection.

EventInTraceSpan is a test helper that asserts that at a span contains an event with the name provided, and returns the value of that event for further inspection.

GenerateBlocksOfSize generates a series of blocks of the given byte size.

GenerateCids produces n content identifiers.

GeneratePeers creates n peer ids.

IndexOf returns the index of a given cid in an array of blocks.

NewFakeBlockData returns a fake block that matches the block data interface.

NewInvalidSelectorSpec returns a spec that will fail when you attempt to validate it on the responder side.

NewTestConnManager returns a new TestConnManager.

NewTestIPLDTree returns a fake tree of nodes, spread across 5 blocks.

NewTestLink returns a randomly generated IPLD Link.

NewTestStore provides a loader and storer for the given in memory link -> byte data map.

NewUnparsableSelectorSpec returns a spec that will fail when you attempt to validate it or decompose to a node + selector.

RandomBytes returns a byte array of the given size with random values.

ReadNResponses does a partial read from a ResponseProgress channel -- up to n values.

RefuteContainsBlock will fail a test if the block is in the given block list.

RefuteContainsPeer will fail a test if the peer is in the given peer list.

SetupBlockChain creates a new test block chain with the given height.

SetupTracing returns a test helper that can will collect all spans within a Collector.

VerifyEmptyErrors verifies that no errors were sent over a channel before it was closed.

VerifyEmptyResponse verifies that no response progress happened before the channel was closed.

VerifyHasErrors verifies that at least one error was sent over a channel.

VerifySingleTerminalError verifies that exactly one error was sent over a channel and then the channel was closed.

Collector can be used as a trace batcher to provide traces to, we collect individual spans and then extract useful data out of them for test assertions.

ExceptionEvent is a simplistic string form representation of an event.

TestBlockChain is a simulated data structure similar to a blockchain which graphsync is uniquely suited for.

TestConnManager implements network.ConnManager and allows you to assert behavior.

TestIPLDTree is a set of IPLD Data that forms a tree spread across some blocks with a serialized in memory representation.