Add test coverage for SubzeroUtils.derivePublicKey function #2302

	# Subzero regression test for transaction signing
	name: "SignTx Regression Test"

	on:
	push:
	branches: [master]
	pull_request:
	# The branches below must be a subset of the branches above
	branches: [master]
	schedule:
	# Daily at 1am
	- cron: '0 1 * * *'

	jobs:
	signtx-test:
	name: "SignTx Test"
	runs-on: ubuntu-latest
	defaults:
	run:
	shell: bash -euxo pipefail {0}

	strategy:
	fail-fast: false

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	# We must fetch at least the immediate parents so that if this is
	# a pull request then we can checkout the head.
	fetch-depth: 2
	submodules: 'recursive'

	- name: Init Hermit
	uses: cashapp/activate-hermit@v1

	# Build Java targets
	- name: Build Java
	run: \|
	cd ${{ github.workspace }}/java
	gradle build --info

	- name: Install Clang
	run: \|
	sudo apt-get update
	sudo apt install clang -y

	- name: Install python packages
	run: \|
	cd ${{ github.workspace }}
	pip install --upgrade pip
	pip install -r ./core/requirements.txt

	# Build CORE
	- name: Build Subzero Core
	run: \|
	cd ${{ github.workspace }}
	export CC=`which clang`
	export CXX=`which clang++`
	./scripts/build_core.sh

	- name: Run Subzero CORE
	run: \|
	cd ${{ github.workspace }}
	./core/build/subzero-testnet &

	- name: Run SignTx Test
	run: \|
	cd ${{ github.workspace }}
	sleep 10
	rm -f /tmp/signtx-test.out
	java -jar ./java/gui/build/libs/gui-1.0.0-SNAPSHOT-shaded.jar --signtx-test \| tee /tmp/signtx-test.out
	grep -qv "ALL TESTS PASSED" /tmp/signtx-test.out \|\| exit 1

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