dovecot-2.2: lib-charset: Updated test-charset unit test to chec...

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.2/rev/93991734ae75
changeset: 19119:93991734ae75
user:      Timo Sirainen <tss at iki.fi>
date:      Tue Sep 08 00:33:21 2015 +0300
description:
lib-charset: Updated test-charset unit test to check for iconv() E2BIG result

diffstat:

 src/lib-charset/test-charset.c |  14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diffs (31 lines):

diff -r f600285c3df2 -r 93991734ae75 src/lib-charset/test-charset.c
--- a/src/lib-charset/test-charset.c	Tue Sep 08 00:07:55 2015 +0300
+++ b/src/lib-charset/test-charset.c	Tue Sep 08 00:33:21 2015 +0300
@@ -25,7 +25,7 @@
 		{ "p\xC3\xA4\xC3", "p\xC3\xA4", CHARSET_RET_INCOMPLETE_INPUT },
 		{ "p\xC3\xA4\xC3""a", "p\xC3\xA4"UNICODE_REPLACEMENT_CHAR_UTF8"a", CHARSET_RET_INVALID_INPUT }
 	};
-	string_t *str = t_str_new(128);
+	string_t *src, *str = t_str_new(256);
 	enum charset_result result;
 	unsigned int i;
 
@@ -36,6 +36,18 @@
 		test_assert_idx(strcmp(tests[i].output, str_c(str)) == 0, i);
 		test_assert_idx(result == tests[i].result, i);
 	}
+	/* check that E2BIG handling works. We assume that iconv() is called
+	   with 8192 byte buffer (tmpbuf[8192]) */
+	src = str_new(default_pool, 16384);
+	for (i = 0; i < 8190; i++)
+		str_append_c(src, 'a' + i % ('z'-'a'+1));
+	for (i = 0; i < 256; i++) {
+		str_truncate(str, 0);
+		str_append_c(src, 'A' + i % ('Z'-'A'+1));
+		test_assert_idx(charset_to_utf8_str(input_charset, NULL,
+						    str_c(src), str, &result) == 0, i);
+	}
+	str_free(&src);
 }
 
 static void test_charset_utf8(void)