Unit Test for the Legacy Dynamic Quantized Linear operator (#23139)
Summary: Add a unit test for the Dynamic Quantized Linear operator (```torch.fbgemm_linear_quantize_weight```, ```torch.fbgemm_pack_quantized_matrix```, and ```torch.fbgemm_linear_int8_weight```) in ```test_quantized.py```.
Test Plan:
buck test mode/dev caffe2/test:quantized -- 'test_qlinear_legacy \(test_quantized\.TestDynamicQuantizedLinear\)' --print-passing-details
[jianyuhuang@devvm29567.prn1.facebook.com: ~/fbsource/fbcode/caffe2/test] $ buck test mode/dev caffe2/test:quantized -- 'test_dynamic_qlinear \(test_quantized\.TestQuantizedLinear\)' --print-passing-details
Parsing buck files: finished in 1.8 sec
Building: finished in 3.4 sec (100%) 6772/6772 jobs, 2 updated
Total time: 5.2 sec
Trace available for this run at /tmp/testpilot.20190714-220130.2698168.log
TestPilot test runner for Facebook. See https://fburl.com/testpilot for details.
Testpilot build revision 4f180136f799ab45ec2bf5d7644cb14955d4dd7a fbpkg
6c6253f255644ca3b8ce1bc5955b0f25 at Mon Jul 8 14:13:38 2019 by twsvcscm from /
usr/local/fbprojects/packages/testinfra.testpilot/651/t.par
Discovering tests
Running 1 tests
Started new test run: https://our.intern.facebook.com/intern/testinfra/testrun/1125900044862617
✓ caffe2/test:quantized - test_dynamic_qlinear (test_quantized.TestQuantizedLinear) 0.023 1/1
(passed)
Test output:
> test_dynamic_qlinear (test_quantized.TestQuantizedLinear) ... ok
>
> ----------------------------------------------------------------------
> Ran 1 test in 0.024s
>
> OK
Finished test run: https://our.intern.facebook.com/intern/testinfra/testrun/1125900044862617
Summary (total time 9.03s):
PASS: 1
FAIL: 0
SKIP: 0
FATAL: 0
TIMEOUT: 0
OMIT: 0
Differential Revision: D16404027
fbshipit-source-id: 4c85dd255637fd8b1eb4830e0464f48c22706f41
