2019-08-12 12:34:37 +00:00
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To create a new umockdev test, you should:
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1. Decide on what to test, the easiest case is just using the existing
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capture test case.
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2. Find the USB device you are testing with lsusb, e.g.:
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Bus 001 Device 005: ID 138a:0090 Validity Sensors, Inc. VFS7500 Touch Fingerprint Sensor
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This means we need to record USB device /dev/bus/usb/001/005
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3. Run "umockdev-record /dev/bus/usb/001/005 >device"
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This records the information about device, it should be placed into test/DRIVER/device
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4. Run the test, for a capture test this would be:
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umockdev-record -i /dev/bus/usb/001/005=capture.ioctl -- ./capture.py capture.png
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This will create a capture.ioctl and capture.png file.
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2019-08-12 14:30:40 +00:00
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Please set the FP_DEVICE_EMULATION=1 environment variable. You may need
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to adjust the driver to adapt to the emulated environment (mainly if it
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uses random numbers, see synaptics.c for an example).
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2019-08-12 12:34:37 +00:00
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5. Place all files into the driver subdirectory test/DRIVER,
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i.e. device, capture.ioctl, capture.png
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6. Add glue to meson.build
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7. Test whether everything works as expected
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Please note, there is no need to use a real finger print in this case. If
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you would like to avoid submitting your own fingerprint then please just
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use e.g. the side of your finger, arm, or anything else that will produce
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an image with the device.
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