git-commit-vandalism/t/t0040-parse-options.sh
Junio C Hamano 3af828634f tests: do not use implicit "git diff --no-index"
As a general principle, we should not use "git diff" to validate the
results of what git command that is being tested has done.  We would not
know if we are testing the command in question, or locating a bug in the
cute hack of "git diff --no-index".

Rather use test_cmp for that purpose.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-24 00:01:56 -07:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes Schindelin
#
test_description='our own option parser'
. ./test-lib.sh
cat > expect.err << EOF
usage: test-parse-options <options>
-b, --boolean get a boolean
-i, --integer <n> get a integer
-j <n> get a integer, too
string options
-s, --string <string>
get a string
--string2 <str> get another string
--st <st> get another string (pervert ordering)
-o <str> get another string
magic arguments
--quux means --quux
EOF
test_expect_success 'test help' '
! test-parse-options -h > output 2> output.err &&
test ! -s output &&
test_cmp expect.err output.err
'
cat > expect << EOF
boolean: 2
integer: 1729
string: 123
EOF
test_expect_success 'short options' '
test-parse-options -s123 -b -i 1729 -b > output 2> output.err &&
test_cmp expect output &&
test ! -s output.err
'
cat > expect << EOF
boolean: 2
integer: 1729
string: 321
EOF
test_expect_success 'long options' '
test-parse-options --boolean --integer 1729 --boolean --string2=321 \
> output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect << EOF
boolean: 1
integer: 13
string: 123
arg 00: a1
arg 01: b1
arg 02: --boolean
EOF
test_expect_success 'intermingled arguments' '
test-parse-options a1 --string 123 b1 --boolean -j 13 -- --boolean \
> output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect << EOF
boolean: 0
integer: 2
string: (not set)
EOF
test_expect_success 'unambiguously abbreviated option' '
test-parse-options --int 2 --boolean --no-bo > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'unambiguously abbreviated option with "="' '
test-parse-options --int=2 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'ambiguously abbreviated option' '
test-parse-options --strin 123;
test $? = 129
'
cat > expect << EOF
boolean: 0
integer: 0
string: 123
EOF
test_expect_success 'non ambiguous option (after two options it abbreviates)' '
test-parse-options --st 123 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect.err << EOF
error: did you mean \`--boolean\` (with two dashes ?)
EOF
test_expect_success 'detect possible typos' '
! test-parse-options -boolean > output 2> output.err &&
test ! -s output &&
test_cmp expect.err output.err
'
cat > expect <<EOF
boolean: 0
integer: 0
string: (not set)
arg 00: --quux
EOF
test_expect_success 'keep some options as arguments' '
test-parse-options --quux > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_done