wc: Improve test coverage.
* Add a test that causes mbrtowc() to return 0. * Add a test that causes mbrtowc() to return -2. Sponsored by: Klara, Inc. Reviewed by: emaste Differential Revision: https://reviews.freebsd.org/D38605
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@ -11,6 +11,11 @@
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export LC_CTYPE=C.UTF-8
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export LC_MESSAGES=C
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#
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# Size of wc's read buffer.
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#
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MAXBSIZE=65536
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#
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# Sample text containing multibyte characters
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#
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@ -136,6 +141,50 @@ multiline_repeated_body()
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atf_check_wc foo $((tvl*c)) $((tvw*c)) $((tvc*c)) $((tvm*c))
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}
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atf_test_case nul
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nul_head()
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{
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atf_set "descr" "Input containing NUL"
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}
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nul_body()
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{
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printf "a\0b\n" >foo
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atf_check_wc foo 1 1 4
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}
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atf_test_case poop
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poop_head()
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{
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atf_set "descr" "Multibyte sequence across buffer boundary"
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}
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poop_body()
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{
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local l=0 w=0 c=0 m=0
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# The code below produces a stream of 4-byte UTF-8 sequences
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# aligned on 5-byte boundaries, ensuring that the first full
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# read of length MAXBSIZE will end in a partial sequence —
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# unless MAXBSIZE is a multiple of 5 (not possible since it's
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# a power of 2) or one less than a multiple of 5 (e.g. 2^18 =
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# 262,144 = (52429 * 5) - 1) in which case we prepend a single
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# newline to push our sequence out of phase.
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atf_check_not_equal 0 $((MAXBSIZE % 5))
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:>foo
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if [ $((MAXBSIZE % 5)) -eq 4 ] ; then
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printf "\n"
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l=$((l + 1))
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c=$((c + 1))
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m=$((m + 1))
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fi >>foo
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while [ $c -le $MAXBSIZE ] ; do
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printf "💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩.💩\n"
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l=$((l + 1))
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w=$((w + 1))
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c=$((c + 80)) # 80 bytes
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m=$((m + 32)) # 32 multibyte characters
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done >>foo
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atf_check_wc foo $l $w $c $m
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}
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atf_test_case total
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total_head()
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{
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@ -190,6 +239,8 @@ atf_init_test_cases()
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atf_add_test_case invalid
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atf_add_test_case multiline
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atf_add_test_case multiline_repeated
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atf_add_test_case nul
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atf_add_test_case poop
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atf_add_test_case total
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atf_add_test_case unterminated
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atf_add_test_case usage
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