Install built fish

tests/install.sh

@@ -30,6 +30,9 @@ else
 	fi
 fi
 
+archive="${PWD:-$(pwd)}/tests/bot-ci/deps/fish/fish.tar.gz"
+sudo sh -c "cd /opt && tar xzf $archive"
+
 # Travis has too outdated fish. It cannot be used for tests.
 # sudo apt-get install fish
 true

tests/test.sh

@@ -3,6 +3,8 @@
 
 FAILED=0
 
+export PATH="/opt/fish/bin:${PATH}"
+
 if test "$PYTHON_IMPLEMENTATION" = "CPython" ; then
 	export PATH="/opt/zsh-${PYTHON_VERSION}/bin:${PATH}"
 fi