emriface - ActiveState ActiveGo 1.8
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Package emriface

import "github.com/aws/aws-sdk-go/service/emr/emriface"
Overview
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Overview ▾

Package emriface provides an interface to enable mocking the Amazon Elastic MapReduce service client for testing your code.

It is important to note that this interface will have breaking changes when the service model is updated and adds new API operations, paginators, and waiters.

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Package files

interface.go

type EMRAPI

EMRAPI provides an interface to enable mocking the emr.EMR service client's API operation, paginators, and waiters. This make unit testing your code that calls out to the SDK's service client's calls easier.

The best way to use this interface is so the SDK's service client's calls can be stubbed out for unit testing your code with the SDK without needing to inject custom request handlers into the the SDK's request pipeline. 

// myFunc uses an SDK service client to make a request to
// Amazon Elastic MapReduce.
func myFunc(svc emriface.EMRAPI) bool {
    // Make svc.AddInstanceFleet request
}

func main() {
    sess := session.New()
    svc := emr.New(sess)

    myFunc(svc)
}

In your _test.go file: 

// Define a mock struct to be used in your unit tests of myFunc.
type mockEMRClient struct {
    emriface.EMRAPI
}
func (m *mockEMRClient) AddInstanceFleet(input *emr.AddInstanceFleetInput) (*emr.AddInstanceFleetOutput, error) {
    // mock response/functionality
}

func TestMyFunc(t *testing.T) {
    // Setup Test
    mockSvc := &mockEMRClient{}

    myfunc(mockSvc)

    // Verify myFunc's functionality
}

It is important to note that this interface will have breaking changes when the service model is updated and adds new API operations, paginators, and waiters. Its suggested to use the pattern above for testing, or using tooling to generate mocks to satisfy the interfaces. 

type EMRAPI interface {
    AddInstanceFleet(*emr.AddInstanceFleetInput) (*emr.AddInstanceFleetOutput, error)
    AddInstanceFleetWithContext(aws.Context, *emr.AddInstanceFleetInput, ...request.Option) (*emr.AddInstanceFleetOutput, error)
    AddInstanceFleetRequest(*emr.AddInstanceFleetInput) (*request.Request, *emr.AddInstanceFleetOutput)

    AddInstanceGroups(*emr.AddInstanceGroupsInput) (*emr.AddInstanceGroupsOutput, error)
    AddInstanceGroupsWithContext(aws.Context, *emr.AddInstanceGroupsInput, ...request.Option) (*emr.AddInstanceGroupsOutput, error)
    AddInstanceGroupsRequest(*emr.AddInstanceGroupsInput) (*request.Request, *emr.AddInstanceGroupsOutput)

    AddJobFlowSteps(*emr.AddJobFlowStepsInput) (*emr.AddJobFlowStepsOutput, error)
    AddJobFlowStepsWithContext(aws.Context, *emr.AddJobFlowStepsInput, ...request.Option) (*emr.AddJobFlowStepsOutput, error)
    AddJobFlowStepsRequest(*emr.AddJobFlowStepsInput) (*request.Request, *emr.AddJobFlowStepsOutput)

    AddTags(*emr.AddTagsInput) (*emr.AddTagsOutput, error)
    AddTagsWithContext(aws.Context, *emr.AddTagsInput, ...request.Option) (*emr.AddTagsOutput, error)
    AddTagsRequest(*emr.AddTagsInput) (*request.Request, *emr.AddTagsOutput)

    CancelSteps(*emr.CancelStepsInput) (*emr.CancelStepsOutput, error)
    CancelStepsWithContext(aws.Context, *emr.CancelStepsInput, ...request.Option) (*emr.CancelStepsOutput, error)
    CancelStepsRequest(*emr.CancelStepsInput) (*request.Request, *emr.CancelStepsOutput)

    CreateSecurityConfiguration(*emr.CreateSecurityConfigurationInput) (*emr.CreateSecurityConfigurationOutput, error)
    CreateSecurityConfigurationWithContext(aws.Context, *emr.CreateSecurityConfigurationInput, ...request.Option) (*emr.CreateSecurityConfigurationOutput, error)
    CreateSecurityConfigurationRequest(*emr.CreateSecurityConfigurationInput) (*request.Request, *emr.CreateSecurityConfigurationOutput)

    DeleteSecurityConfiguration(*emr.DeleteSecurityConfigurationInput) (*emr.DeleteSecurityConfigurationOutput, error)
    DeleteSecurityConfigurationWithContext(aws.Context, *emr.DeleteSecurityConfigurationInput, ...request.Option) (*emr.DeleteSecurityConfigurationOutput, error)
    DeleteSecurityConfigurationRequest(*emr.DeleteSecurityConfigurationInput) (*request.Request, *emr.DeleteSecurityConfigurationOutput)

    DescribeCluster(*emr.DescribeClusterInput) (*emr.DescribeClusterOutput, error)
    DescribeClusterWithContext(aws.Context, *emr.DescribeClusterInput, ...request.Option) (*emr.DescribeClusterOutput, error)
    DescribeClusterRequest(*emr.DescribeClusterInput) (*request.Request, *emr.DescribeClusterOutput)

    DescribeJobFlows(*emr.DescribeJobFlowsInput) (*emr.DescribeJobFlowsOutput, error)
    DescribeJobFlowsWithContext(aws.Context, *emr.DescribeJobFlowsInput, ...request.Option) (*emr.DescribeJobFlowsOutput, error)
    DescribeJobFlowsRequest(*emr.DescribeJobFlowsInput) (*request.Request, *emr.DescribeJobFlowsOutput)

    DescribeSecurityConfiguration(*emr.DescribeSecurityConfigurationInput) (*emr.DescribeSecurityConfigurationOutput, error)
    DescribeSecurityConfigurationWithContext(aws.Context, *emr.DescribeSecurityConfigurationInput, ...request.Option) (*emr.DescribeSecurityConfigurationOutput, error)
    DescribeSecurityConfigurationRequest(*emr.DescribeSecurityConfigurationInput) (*request.Request, *emr.DescribeSecurityConfigurationOutput)

    DescribeStep(*emr.DescribeStepInput) (*emr.DescribeStepOutput, error)
    DescribeStepWithContext(aws.Context, *emr.DescribeStepInput, ...request.Option) (*emr.DescribeStepOutput, error)
    DescribeStepRequest(*emr.DescribeStepInput) (*request.Request, *emr.DescribeStepOutput)

    ListBootstrapActions(*emr.ListBootstrapActionsInput) (*emr.ListBootstrapActionsOutput, error)
    ListBootstrapActionsWithContext(aws.Context, *emr.ListBootstrapActionsInput, ...request.Option) (*emr.ListBootstrapActionsOutput, error)
    ListBootstrapActionsRequest(*emr.ListBootstrapActionsInput) (*request.Request, *emr.ListBootstrapActionsOutput)

    ListBootstrapActionsPages(*emr.ListBootstrapActionsInput, func(*emr.ListBootstrapActionsOutput, bool) bool) error
    ListBootstrapActionsPagesWithContext(aws.Context, *emr.ListBootstrapActionsInput, func(*emr.ListBootstrapActionsOutput, bool) bool, ...request.Option) error

    ListClusters(*emr.ListClustersInput) (*emr.ListClustersOutput, error)
    ListClustersWithContext(aws.Context, *emr.ListClustersInput, ...request.Option) (*emr.ListClustersOutput, error)
    ListClustersRequest(*emr.ListClustersInput) (*request.Request, *emr.ListClustersOutput)

    ListClustersPages(*emr.ListClustersInput, func(*emr.ListClustersOutput, bool) bool) error
    ListClustersPagesWithContext(aws.Context, *emr.ListClustersInput, func(*emr.ListClustersOutput, bool) bool, ...request.Option) error

    ListInstanceFleets(*emr.ListInstanceFleetsInput) (*emr.ListInstanceFleetsOutput, error)
    ListInstanceFleetsWithContext(aws.Context, *emr.ListInstanceFleetsInput, ...request.Option) (*emr.ListInstanceFleetsOutput, error)
    ListInstanceFleetsRequest(*emr.ListInstanceFleetsInput) (*request.Request, *emr.ListInstanceFleetsOutput)

    ListInstanceFleetsPages(*emr.ListInstanceFleetsInput, func(*emr.ListInstanceFleetsOutput, bool) bool) error
    ListInstanceFleetsPagesWithContext(aws.Context, *emr.ListInstanceFleetsInput, func(*emr.ListInstanceFleetsOutput, bool) bool, ...request.Option) error

    ListInstanceGroups(*emr.ListInstanceGroupsInput) (*emr.ListInstanceGroupsOutput, error)
    ListInstanceGroupsWithContext(aws.Context, *emr.ListInstanceGroupsInput, ...request.Option) (*emr.ListInstanceGroupsOutput, error)
    ListInstanceGroupsRequest(*emr.ListInstanceGroupsInput) (*request.Request, *emr.ListInstanceGroupsOutput)

    ListInstanceGroupsPages(*emr.ListInstanceGroupsInput, func(*emr.ListInstanceGroupsOutput, bool) bool) error
    ListInstanceGroupsPagesWithContext(aws.Context, *emr.ListInstanceGroupsInput, func(*emr.ListInstanceGroupsOutput, bool) bool, ...request.Option) error

    ListInstances(*emr.ListInstancesInput) (*emr.ListInstancesOutput, error)
    ListInstancesWithContext(aws.Context, *emr.ListInstancesInput, ...request.Option) (*emr.ListInstancesOutput, error)
    ListInstancesRequest(*emr.ListInstancesInput) (*request.Request, *emr.ListInstancesOutput)

    ListInstancesPages(*emr.ListInstancesInput, func(*emr.ListInstancesOutput, bool) bool) error
    ListInstancesPagesWithContext(aws.Context, *emr.ListInstancesInput, func(*emr.ListInstancesOutput, bool) bool, ...request.Option) error

    ListSecurityConfigurations(*emr.ListSecurityConfigurationsInput) (*emr.ListSecurityConfigurationsOutput, error)
    ListSecurityConfigurationsWithContext(aws.Context, *emr.ListSecurityConfigurationsInput, ...request.Option) (*emr.ListSecurityConfigurationsOutput, error)
    ListSecurityConfigurationsRequest(*emr.ListSecurityConfigurationsInput) (*request.Request, *emr.ListSecurityConfigurationsOutput)

    ListSteps(*emr.ListStepsInput) (*emr.ListStepsOutput, error)
    ListStepsWithContext(aws.Context, *emr.ListStepsInput, ...request.Option) (*emr.ListStepsOutput, error)
    ListStepsRequest(*emr.ListStepsInput) (*request.Request, *emr.ListStepsOutput)

    ListStepsPages(*emr.ListStepsInput, func(*emr.ListStepsOutput, bool) bool) error
    ListStepsPagesWithContext(aws.Context, *emr.ListStepsInput, func(*emr.ListStepsOutput, bool) bool, ...request.Option) error

    ModifyInstanceFleet(*emr.ModifyInstanceFleetInput) (*emr.ModifyInstanceFleetOutput, error)
    ModifyInstanceFleetWithContext(aws.Context, *emr.ModifyInstanceFleetInput, ...request.Option) (*emr.ModifyInstanceFleetOutput, error)
    ModifyInstanceFleetRequest(*emr.ModifyInstanceFleetInput) (*request.Request, *emr.ModifyInstanceFleetOutput)

    ModifyInstanceGroups(*emr.ModifyInstanceGroupsInput) (*emr.ModifyInstanceGroupsOutput, error)
    ModifyInstanceGroupsWithContext(aws.Context, *emr.ModifyInstanceGroupsInput, ...request.Option) (*emr.ModifyInstanceGroupsOutput, error)
    ModifyInstanceGroupsRequest(*emr.ModifyInstanceGroupsInput) (*request.Request, *emr.ModifyInstanceGroupsOutput)

    PutAutoScalingPolicy(*emr.PutAutoScalingPolicyInput) (*emr.PutAutoScalingPolicyOutput, error)
    PutAutoScalingPolicyWithContext(aws.Context, *emr.PutAutoScalingPolicyInput, ...request.Option) (*emr.PutAutoScalingPolicyOutput, error)
    PutAutoScalingPolicyRequest(*emr.PutAutoScalingPolicyInput) (*request.Request, *emr.PutAutoScalingPolicyOutput)

    RemoveAutoScalingPolicy(*emr.RemoveAutoScalingPolicyInput) (*emr.RemoveAutoScalingPolicyOutput, error)
    RemoveAutoScalingPolicyWithContext(aws.Context, *emr.RemoveAutoScalingPolicyInput, ...request.Option) (*emr.RemoveAutoScalingPolicyOutput, error)
    RemoveAutoScalingPolicyRequest(*emr.RemoveAutoScalingPolicyInput) (*request.Request, *emr.RemoveAutoScalingPolicyOutput)

    RemoveTags(*emr.RemoveTagsInput) (*emr.RemoveTagsOutput, error)
    RemoveTagsWithContext(aws.Context, *emr.RemoveTagsInput, ...request.Option) (*emr.RemoveTagsOutput, error)
    RemoveTagsRequest(*emr.RemoveTagsInput) (*request.Request, *emr.RemoveTagsOutput)

    RunJobFlow(*emr.RunJobFlowInput) (*emr.RunJobFlowOutput, error)
    RunJobFlowWithContext(aws.Context, *emr.RunJobFlowInput, ...request.Option) (*emr.RunJobFlowOutput, error)
    RunJobFlowRequest(*emr.RunJobFlowInput) (*request.Request, *emr.RunJobFlowOutput)

    SetTerminationProtection(*emr.SetTerminationProtectionInput) (*emr.SetTerminationProtectionOutput, error)
    SetTerminationProtectionWithContext(aws.Context, *emr.SetTerminationProtectionInput, ...request.Option) (*emr.SetTerminationProtectionOutput, error)
    SetTerminationProtectionRequest(*emr.SetTerminationProtectionInput) (*request.Request, *emr.SetTerminationProtectionOutput)

    SetVisibleToAllUsers(*emr.SetVisibleToAllUsersInput) (*emr.SetVisibleToAllUsersOutput, error)
    SetVisibleToAllUsersWithContext(aws.Context, *emr.SetVisibleToAllUsersInput, ...request.Option) (*emr.SetVisibleToAllUsersOutput, error)
    SetVisibleToAllUsersRequest(*emr.SetVisibleToAllUsersInput) (*request.Request, *emr.SetVisibleToAllUsersOutput)

    TerminateJobFlows(*emr.TerminateJobFlowsInput) (*emr.TerminateJobFlowsOutput, error)
    TerminateJobFlowsWithContext(aws.Context, *emr.TerminateJobFlowsInput, ...request.Option) (*emr.TerminateJobFlowsOutput, error)
    TerminateJobFlowsRequest(*emr.TerminateJobFlowsInput) (*request.Request, *emr.TerminateJobFlowsOutput)

    WaitUntilClusterRunning(*emr.DescribeClusterInput) error
    WaitUntilClusterRunningWithContext(aws.Context, *emr.DescribeClusterInput, ...request.WaiterOption) error

    WaitUntilClusterTerminated(*emr.DescribeClusterInput) error
    WaitUntilClusterTerminatedWithContext(aws.Context, *emr.DescribeClusterInput, ...request.WaiterOption) error

    WaitUntilStepComplete(*emr.DescribeStepInput) error
    WaitUntilStepCompleteWithContext(aws.Context, *emr.DescribeStepInput, ...request.WaiterOption) error
}