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nix/tests/misc.sh

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* Make it easy to run individual tests from the command line.
2006-03-01 12:15:33 +00:00
source common.sh
* More tests.
2006-02-22 14:02:44 +00:00
# Tests miscellaneous commands.
# Do all commands have help?
Harden tests' bash Use `set -u` and `set -o pipefail` to catch accidental mistakes and failures more strongly. - `set -u` catches the use of undefined variables - `set -o pipefail` catches failures (like `set -e`) earlier in the pipeline. This makes the tests a bit more robust. It is nice to read code not worrying about these spurious success paths (via uncaught) errors undermining the tests. Indeed, I caught some bugs doing this. There are a few tests where we run a command that should fail, and then search its output to make sure the failure message is one that we expect. Before, since the `grep` was the last command in the pipeline the exit code of those failing programs was silently ignored. Now with `set -o pipefail` it won't be, and we have to do something so the expected failure doesn't accidentally fail the test. To do that we use `expect` and a new `expectStderr` to check for the exact failing exit code. See the comments on each for why. `grep -q` is replaced with `grepQuiet`, see the comments on that function for why. `grep -v` when we just want the exit code is replaced with `grepInverse, see the comments on that function for why. `grep -q -v` together is, surprise surprise, replaced with `grepQuietInverse`, which is both combined. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2021-12-09 15:26:46 +00:00
#nix-env --help | grepQuiet install
#nix-store --help | grepQuiet realise
#nix-instantiate --help | grepQuiet eval
#nix-hash --help | grepQuiet base32
* More tests.
2006-02-22 14:02:44 +00:00
* Make it easy to run individual tests from the command line.
2006-03-01 12:15:33 +00:00
# Can we ask for the version number?
* Refactoring: remove unnecessary variables from the tests.
2011-10-10 21:32:34 +00:00
nix-env --version | grep "$version"
* Simplification.
2006-03-01 12:51:18 +00:00
# Usage errors.
Harden tests' bash Use `set -u` and `set -o pipefail` to catch accidental mistakes and failures more strongly. - `set -u` catches the use of undefined variables - `set -o pipefail` catches failures (like `set -e`) earlier in the pipeline. This makes the tests a bit more robust. It is nice to read code not worrying about these spurious success paths (via uncaught) errors undermining the tests. Indeed, I caught some bugs doing this. There are a few tests where we run a command that should fail, and then search its output to make sure the failure message is one that we expect. Before, since the `grep` was the last command in the pipeline the exit code of those failing programs was silently ignored. Now with `set -o pipefail` it won't be, and we have to do something so the expected failure doesn't accidentally fail the test. To do that we use `expect` and a new `expectStderr` to check for the exact failing exit code. See the comments on each for why. `grep -q` is replaced with `grepQuiet`, see the comments on that function for why. `grep -v` when we just want the exit code is replaced with `grepInverse, see the comments on that function for why. `grep -q -v` together is, surprise surprise, replaced with `grepQuietInverse`, which is both combined. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2021-12-09 15:26:46 +00:00
expect 1 nix-env --foo 2>&1 | grep "no operation"
expect 1 nix-env -q --foo 2>&1 | grep "unknown flag"
Output line number on infinite recursion
2015-07-31 15:32:25 +00:00
# Eval Errors.
position for stdin, string; (string) for trace; fix tests
2020-05-21 20:28:45 +00:00
eval_arg_res=$(nix-instantiate --eval -E 'let a = {} // a; in a.foo' 2>&1 || true)
Change error position formatting It's now at /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix:7:7: instead of at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix The new format is more standard and clickable.
2021-01-20 23:55:59 +00:00
echo $eval_arg_res | grep "at «string»:1:15:"
position for stdin, string; (string) for trace; fix tests
2020-05-21 20:28:45 +00:00
echo $eval_arg_res | grep "infinite recursion encountered"
eval_stdin_res=$(echo 'let a = {} // a; in a.foo' | nix-instantiate --eval -E - 2>&1 || true)
Change error position formatting It's now at /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix:7:7: instead of at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix The new format is more standard and clickable.
2021-01-20 23:55:59 +00:00
echo $eval_stdin_res | grep "at «stdin»:1:15:"
position for stdin, string; (string) for trace; fix tests
2020-05-21 20:28:45 +00:00
echo $eval_stdin_res | grep "infinite recursion encountered"
Expanded test suite * Lang now verifies errors and parse output * Some new miscellaneous tests * Easy way to update the tests * Document workflow in manual * Use `!` not `~` as separater char for sed It is confusing to use `~` when we are talking about paths and home directories! * Test test suite itself (`test/lang-test/infra.sh`) Additionally, run shellcheck on `tests/lang.sh` to help ensure it is correct, now that is is more complex. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com> Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2015-09-04 20:23:08 +00:00
# Attribute path errors
expectStderr 1 nix-instantiate --eval -E '{}' -A '"x' | grepQuiet "missing closing quote in selection path"
expectStderr 1 nix-instantiate --eval -E '[]' -A 'x' | grepQuiet "should be a set"
expectStderr 1 nix-instantiate --eval -E '{}' -A '1' | grepQuiet "should be a list"
expectStderr 1 nix-instantiate --eval -E '{}' -A '.' | grepQuiet "empty attribute name"
expectStderr 1 nix-instantiate --eval -E '[]' -A '1' | grepQuiet "out of range"
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