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readFromSource

Test custom file adapter by reading from source

Since R2022b

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    Syntax

    readFromSource(testerObj)

    Description

    readFromSource(testerObj) tests the getData method of a custom external file adapter derived from the Simulink.data.adapters.BaseMatlabFileAdapter base class. When you create the Simulink.data.adapters.AdapterDataTester object, testerObj, you open a connection to a test file by using an instance of a custom file adapter. The object function reads data from that test file.

    example

    Examples

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    Use a Simulink.data.adapters.AdapterDataTester object to test the getData method of an XML file adapter derived from a Simulink.data.adapters.BaseMatlabFileAdapter base class. For an example of an XML file adapter, see Create External File Adapter for Loading Variables into Simulink.SimulationInput Object.

    The getData method reads data from an XML file test.xml with the following format.

    <customerData>
<x>10</x>
<y>15</y>
</customerData>

    Create an instance of your file adapter.

    adapterInstance = myXMLAdapter;

    Create an instance of the file adapter tester object using the test file specified above.

    adapterTester = Simulink.data.adapters.AdapterDataTester(adapterInstance,...
                                                         'test.xml','XML Adapter');

    Use adapterTester to read the data from your XML file. Then, check the data in the WorkspaceVariables property.

    readFromSource(adapterTester);
variables = adapterTester.WorkspaceVariables

    variables = 
  Map with properties:
    Count: 2
    KeyType: char
    ValueType: double

    Check the data in the WorkspaceVariables map object.

    variables.keys

    ans = 
  1x2 cell array
    {"x"}  {"y"}

    Finally, clear the workspace variables.

    clear(adapterTester);

    Input Arguments

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    File adapter tester, specified as a Simulink.data.adapters.AdapterDataTester object.

    Version History

    Introduced in R2022b

    See Also

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