Direct people to CONTRIBUTION.md for installing related package in th…

…e unittest README.md

CONTRIBUTING.md

@@ -55,8 +55,6 @@ conda install pytorch -c pytorch-nightly
 pip install cmake ninja
 ```
 
-### Install other requirements
-
 ```bash
 git clone https://github.com/pytorch/audio.git
 cd audio
@@ -69,7 +67,7 @@ BUILD_SOX=1 python setup.py develop
 # DEBUG=1 python setup.py develop
 ```
 
-If you built sox, set the `PATH` variable so that the tests properly use the newly built `SoX` binary:
+If you built sox, set the `PATH` variable so that the tests properly use the newly built `sox` binary:
 
 ```bash
 export PATH="<path_to_torchaudio>/third_party/install/bin:${PATH}"
@@ -78,13 +76,13 @@ export PATH="<path_to_torchaudio>/third_party/install/bin:${PATH}"
 The following dependencies are also needed for testing:
 
 ```bash
-pip install typing pytest scipy numpy parameterized pyyaml
+pip install typing pytest scipy numpy parameterized
 ```
 
 Optional packages to install if you want to run related tests:
 
 ```bash
-pip install librosa requests soundfile kaldi_io transformers fariseq
+pip install librosa requests soundfile kaldi_io transformers
 ```
 
 ## Development Process

test/torchaudio_unittest/README.md

@@ -5,15 +5,10 @@
 You can use `pytest` to run `torchaudio`'s test suites. See
 https://docs.pytest.org/ for the detail of how to use `pytest` command.
 
-For testing, the following packages are needed:
+For testing, please refer to [contributing guide](../../CONTRIBUTING.md) for
+installation of the required and optional packages.
 
-```bash
-pip install typing pytest scipy numpy parameterized
-pip install -r requirements.txt
-```
-
-Make sure to follow the installation instruction in the [contributing
-guide](../../CONTRIBUTING.md) first. For running `kaldi`-related tests:
+For running `kaldi`-related tests:
 
 ```bash
 export PATH="${PATH}:<path_to_kaldi>/src/featbin/"
@@ -74,9 +69,7 @@ The following test modules are defined for corresponding `torchaudio` module/fun
 - [`torchaudio.compliance.kaldi`](./compliance_kaldi_test.py)
 - [`torchaudio.kaldi_io`](./kaldi_io_test.py)
 - [`torchaudio.sox_effects`](./sox_effect)
-- [`torchaudio.save`, `torchaudio.load`, `torchaudio.info`]
-    - soundfile backend: [[save](./backend/soundfile/save_test.py), [load](./backend/soundfile/load_test.py), [info](./backend/soundfile/info_test.py)]
-    - SoX backend: [[save](./backend/sox_io/save_test.py), [load](./backend/sox_io/load_test.py), [info](./backend/sox_io/info_test.py)]
+- [`torchaudio.backend`](./backend)
 
 ### Test modules that do not fall into the above categories
 - [test_dataloader.py](./dataloader_test.py)