Caplin Trader 5.1.0

Class: module:ct-testing/DataSubscriptionFixture

module:ct-testing/DataSubscriptionFixture()

The DataSubscriptionFixture serves to create a context for providing mock price message updates, through the use of 'caplin.message-service'.

Tests may use the DataSubscriptionFixture to:

  • update a record's data: given(PM is in state A)
    when("message.dataUpdateReceived => '/FX/USDGBP|DATA_UPDATE_1'")
    then(PM is in state B)
  • update a record's status: given(PM is in state A)
    when("message.dataStatusChanged => '/FX/USDGBP|STALE'")
    then(PM is in state B)
  • check if a record is subscribed to: given(PM is in state A)
    then("message.subjectRequested => '/FX/USDGBP'")
  • check if a record is not subscribed to: given(PM is in state A)
    then("message.subjectNotRequested => '/FX/USDGBP'")
  • send multiple data updates: given(PM is in state A)
    when("dataSubscription.multipleUpdatesReceived => '/FUT/LADDER/ZLE/Q11|PRICE_UPDATE|0-9'")
  • send a subscription error: given(PM is in state A)
    when("dataSubscription.dataErrorReceived => '/FUT/LADDER/ZLE/Q11|NOT_FOUND'");

Constructor

new module:ct-testing/DataSubscriptionFixture()

Implements:

Methods

addNamedValueMap(name, values, meta)

This method enables a FixtureFactory to register a set of data update identifiers and corresponding maps of mock field data with this DataSubscriptionFixture. Tests using the fixture to send mock data updates are able to refer to update data using property value 'Subject_name|Data_update_identifier'.

Parameters:
Name Type Description
name String

the data update identifier.
values Map

the update data map from field names to field values.
meta Map

data for the field update

canHandleProperty(propertyName)

DataSubscriptionFixture can handle the properties 'dataUpdateReceived', 'dataStatusChanged', 'subjectRequested', 'subjectNotRequested', 'multipleUpdatesReceived' and 'dataErrorReceived'.

Parameters:
Name Type Description
propertyName String

The property to check.
Implements:
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doGiven()

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doThen()

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doWhen()

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tearDown()

This method is called just after a GWT test. This optional interface method can be implemented if the fixture is required to correctly tear down the system-under-test after each test or to reset any state held in the fixture's implementation.

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