Allow tests to work on multiple RT platforms using a configuration file

[rtzoeller]

• This contribution adheres to CONTRIBUTING.md.

What does this Pull Request accomplish?

Introduces the notion of a targets.ini file that can be specified per test-class. This file is applied after the overrides, and supports changing the target operating system and hostname.

The file format is shown below for a test class supporting PharLap and Linux on PXI.

[Supported Targets]
PharLap = 10.2.64.14
Linux64PXI = 10.2.64.21

[Active Configuration]
Platform = Linux64PXI

Why should this Pull Request be merged?

To enable running tests on multiple OSes automatically, we want to be able to configure the OS and IP address used by all system definitions in a test class through a single configuration file. By standardizing the name and relative location of this file, we can easily map test classes to configuration files, which is not true today.

The ATS will subsequently be updated to modify the active configuration and hostnames in the targets.ini files during test runs, to iterate through all supported targets.

What testing has been done?

Ran unit tests in the repository.

Updated the NI Synchronization system tests to use the new format and confirmed that they deployed to the correct target, based on the active configuration.

[AndreasStark]

@rtzoeller I was running into this just last week. Great timing and work!

[niveristand-diff-bot]

Bleep bloop!

LabVIEW Diff Robot here with some diffs served up hot for your pull request.

Notice something funny? Help fix me on my GitHub repo.

VeriStandTestCase.lvclass--AddConfigurationFiles.vi.png

VeriStandTestCase.lvclass--AddTargetsConfigurationFile.vi.png

VeriStandTestCase.lvclass--OpenVeriStandConnection.vi.png

VeriStandTestCase.lvclass--PatchSystemDefinitionFile.vi.png

VeriStandTestCase.lvclass--ReadActiveConfiguration.vi.png

VeriStandTestCase.lvclass--SetMultipleChannelValues.vi.png

VeriStandTestCaseTests.lvclass--testOpenCloseVeriStandConnection.vi.png

VeriStandTestUtilities.lvlib--ApplyTargetConfiguration.vi.png

VeriStandTestUtilities.lvlib--ConvertTargetPlatformToOperatingSystem.vi.png

VeriStandTestUtilities.lvlib--GenerateOverriddenSystemDefinitionFromExplicitOverrides.vi.png

VeriStandTestUtilities.lvlib--ReadTargetsConfigurationFile.vi.png