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test: Detect when expect_str is too small
If a line of more than 256 bytes is generated, the test will fail but the reason is not clear. Add a check for this condition and print a helpful message. Signed-off-by: Simon Glass <sjg@chromium.org>
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c1a2bb4f83
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090d664eac
1 changed files with 14 additions and 2 deletions
16
test/ut.c
16
test/ut.c
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@ -68,11 +68,17 @@ static int readline_check(struct unit_test_state *uts)
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int ut_check_console_line(struct unit_test_state *uts, const char *fmt, ...)
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{
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va_list args;
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int len;
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int ret;
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va_start(args, fmt);
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vsnprintf(uts->expect_str, sizeof(uts->expect_str), fmt, args);
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len = vsnprintf(uts->expect_str, sizeof(uts->expect_str), fmt, args);
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va_end(args);
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if (len >= sizeof(uts->expect_str)) {
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ut_fail(uts, __FILE__, __LINE__, __func__,
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"unit_test_state->expect_str too small");
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return -EOVERFLOW;
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}
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ret = readline_check(uts);
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if (ret < 0)
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return ret;
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@ -83,11 +89,17 @@ int ut_check_console_line(struct unit_test_state *uts, const char *fmt, ...)
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int ut_check_console_linen(struct unit_test_state *uts, const char *fmt, ...)
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{
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va_list args;
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int len;
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int ret;
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va_start(args, fmt);
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vsnprintf(uts->expect_str, sizeof(uts->expect_str), fmt, args);
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len = vsnprintf(uts->expect_str, sizeof(uts->expect_str), fmt, args);
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va_end(args);
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if (len >= sizeof(uts->expect_str)) {
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ut_fail(uts, __FILE__, __LINE__, __func__,
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"unit_test_state->expect_str too small");
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return -EOVERFLOW;
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}
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ret = readline_check(uts);
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if (ret < 0)
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return ret;
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