source common.sh clearStore cd "$TEST_HOME" cat < flake.nix { outputs = a: { packages.$system = { foo = 1; fo1 = 1; fo2 = 1; fooo = 1; foooo = 1; fooooo = 1; fooooo1 = 1; fooooo2 = 1; fooooo3 = 1; fooooo4 = 1; fooooo5 = 1; fooooo6 = 1; }; }; } EOF # Probable typo in the requested attribute path. Suggest some close possibilities NIX_BUILD_STDERR_WITH_SUGGESTIONS=$(! nix build .\#fob 2>&1 1>/dev/null) [[ "$NIX_BUILD_STDERR_WITH_SUGGESTIONS" =~ "Did you mean one of fo1, fo2, foo or fooo?" ]] || \ fail "The nix build stderr should suggest the three closest possiblities" # None of the possible attributes is close to `bar`, so shouldn’t suggest anything NIX_BUILD_STDERR_WITH_NO_CLOSE_SUGGESTION=$(! nix build .\#bar 2>&1 1>/dev/null) [[ ! "$NIX_BUILD_STDERR_WITH_NO_CLOSE_SUGGESTION" =~ "Did you mean" ]] || \ fail "The nix build stderr shouldn’t suggest anything if there’s nothing relevant to suggest"