source ./common.sh

requireGit

flake1Dir=$TEST_ROOT/flake1
flake2Dir=$TEST_ROOT/flake2

createGitRepo $flake1Dir
cat > $flake1Dir/flake.nix <<EOF
{
    outputs = { self }: { x = import ./x.nix; };
}
EOF
echo 123 > $flake1Dir/x.nix
git -C $flake1Dir add flake.nix x.nix
git -C $flake1Dir commit -m Initial

createGitRepo $flake2Dir
cat > $flake2Dir/flake.nix <<EOF
{
    outputs = { self, flake1 }: { x = flake1.x; };
}
EOF
git -C $flake2Dir add flake.nix

[[ $(nix eval --json $flake2Dir#x --override-input flake1 $TEST_ROOT/flake1) = 123 ]]

echo 456 > $flake1Dir/x.nix

[[ $(nix eval --json $flake2Dir#x --override-input flake1 $TEST_ROOT/flake1) = 456 ]]