fix(keygen): correctly load token for validation

Makefile

@@ -1,6 +1,8 @@
 SHELL := /bin/bash
 
-test:
+test: go-test keygen-test
+
+go-test:
 	go clean -testcache
 	go test -cover -v ./...
 
@@ -36,6 +38,13 @@ gitea-release: .mktools tools/gitea-release/bin/gitea-release.sh release
 		GITEA_RELEASE_ATTACHMENTS="$$(find release -type f -name '*.tar.gz')" \
 		tools/gitea-release/bin/gitea-release.sh
 
+keygen-test: tools/bash_unit/bin/bash_unit
+	tools/bash_unit/bin/bash_unit misc/bash_unit/keygen_test.sh
+
+tools/bash_unit/bin/bash_unit:
+	mkdir -p tools/bash_unit/bin
+	cd tools/bash_unit/bin && bash <(curl -s https://raw.githubusercontent.com/pgrange/bash_unit/master/install.sh)
+
 .PHONY: mktools
 mktools:
 	rm -rf .mktools