By: The Subplot project
2023-09-17 23:22
title: "seq(1) acceptance tests" author: The Subplot project bindings:
seq(1) is a Unix command line tool that produces numbers 1, 2,
etc, up until a count given by the user. For example, if the user runs
seq 3
, the output has the numbers 1, 2, and 3, one per line.
Requirement: If seq
is run without arguments, it reports an error.
when I try to run seq then exit code is 1
Requirement: If seq
is run with the argument 0, it writes nothing.
when I run seq 0 then stdout is exactly "" then stderr is exactly ""
Requirement: If seq
is run with the argument 1, it writes one line,
with the number 1.
when I run seq 1 then stdout is exactly "1\n" then stderr is exactly ""
Requirement: If seq
is run with the argument 3, it writes three lines,
one with the number 1, one with 2, and one with 3.
when I run seq 3 then stdout has 3 lines then stdout is exactly "1\n2\n3\n" then stderr is exactly ""
Requirement: If seq
is run with a non-numerical argument, it writes nothing
to stdout, and an error message to stderr.
when I try to run seq fish then command fails then stdout is exactly "" then stderr says fish is invalid