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StrictShardHelper

public class StrictShardHelper
extends ShardHelper

java.lang.Object
↳	com.android.tradefed.invoker.shard.ShardHelper
	↳	com.android.tradefed.invoker.shard.StrictShardHelper

Sharding strategy to create strict shards that do not report together,

Summary

Public constructors
`StrictShardHelper()`

Public methods
`boolean`	`shardConfig(IConfiguration config, TestInformation testInfo, IRescheduler rescheduler, ITestLogger logger)` Attempt to shard the configuration into sub-configurations, to be re-scheduled to run on multiple resources in parallel.

Protected methods
	`splitTests( fullList, int shardCount)` Split the list of tests to run however the implementation see fit.

Public constructors

StrictShardHelper

public StrictShardHelper ()

Public methods

shardConfig

public boolean shardConfig (IConfiguration config, 
                TestInformation testInfo, 
                IRescheduler rescheduler, 
                ITestLogger logger)

Attempt to shard the configuration into sub-configurations, to be re-scheduled to run on multiple resources in parallel.

A successful shard action renders the current config empty, and invocation should not proceed.

Parameters
`config`	`IConfiguration`: the current `IConfiguration`.
`testInfo`	`TestInformation`: the `TestInformation` holding the tests information.
`rescheduler`	`IRescheduler`: the `IRescheduler`
`logger`	`ITestLogger`

Returns
`boolean`	true if test was sharded. Otherwise return `false`

Protected methods

splitTests

protected  splitTests ( fullList, 
                int shardCount)

Split the list of tests to run however the implementation see fit. Sharding needs to be consistent. It is acceptable to return an empty list if no tests can be run in the shard.

Implement this in order to provide a test suite specific sharding. The default implementation attempts to balance the number of IRemoteTest per shards as much as possible as a first step, then use a minor criteria or run-hint to adjust the lists a bit more.

Parameters
`fullList`	: the initial full list of `IRemoteTest` containing all the tests that need to run.
`shardCount`	`int`: the total number of shard that need to run.

Returns
	a list of list `IRemoteTest`s that have been assigned to each shard. The list size will be the shardCount.