Run the main method to generate the file script_assets_test.json.

cargo run

Clone Elements Core and switch to the Simplicity branch.

git clone [email protected]:ElementsProject/elements.git
cd elements
git checkout simplicity

Configure your development environment. Cough, there is an easy way using nix, cough.

Then build Elements Core.

./autogen.sh
./configure
make # use "-j N" for N parallel jobs

First, build Elements Core for testing.

Then run the unit test assets using the test runner.

DIR_UNIT_TEST_DATA=../asset-gen ./src/test/test_bitcoin --log_level=warning --run_test=script_tests

The variable DIR_UNIT_TEST_DATA selects the directory in which the file script_assets_test.json is located.