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PR bootstrap/71481: fix input.c selftest

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gcc/ChangeLog:
	PR bootstrap/71481
	* input.c (selftest::test_reading_source_line): Avoid reading from
	__FILE__ by creating a tempfile with known content and reading
	from that instead.

From-SVN: r237414
This commit is contained in:
David Malcolm 2016-06-13 21:20:10 +00:00 committed by David Malcolm
parent 2fe00b1fba
commit 85ecd05c26
2 changed files with 27 additions and 9 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2016-06-13 David Malcolm <dmalcolm@redhat.com>
PR bootstrap/71481
* input.c (selftest::test_reading_source_line): Avoid reading from
__FILE__ by creating a tempfile with known content and reading
from that instead.
2016-06-13 David Malcolm <dmalcolm@redhat.com>
* pretty-print.c (assert_pp_format_colored): Skip the test if

29
gcc/input.c
View File

@ -1219,23 +1219,34 @@ test_builtins ()
static void
test_reading_source_line ()
{
/* We will read *this* source file, using __FILE__.
Here is some specific text to read and test for:
The quick brown fox jumps over the lazy dog. */
const int linenum_after_test_message = __LINE__;
const int linenum = linenum_after_test_message - 1;
/* Create a tempfile and write some text to it. */
char *filename = make_temp_file (".txt");
ASSERT_NE (filename, NULL);
FILE *out = fopen (filename, "w");
if (!out)
::selftest::fail_formatted (SELFTEST_LOCATION,
"unable to open tempfile: %s", filename);
fprintf (out,
"01234567890123456789\n"
"This is the test text\n"
"This is the 3rd line\n");
fclose (out);
/* Read back a specific line from the tempfile. */
int line_size;
const char *source_line = location_get_source_line (__FILE__, linenum, &line_size);
const char *source_line = location_get_source_line (filename, 2, &line_size);
ASSERT_TRUE (source_line != NULL);
ASSERT_EQ (53, line_size);
if (!strncmp (" The quick brown fox jumps over the lazy dog. */",
source_line, line_size))
ASSERT_EQ (21, line_size);
if (!strncmp ("This is the test text",
source_line, line_size))
::selftest::pass (SELFTEST_LOCATION,
"source_line matched expected value");
else
::selftest::fail (SELFTEST_LOCATION,
"source_line did not match expected value");
unlink (filename);
free (filename);
}
/* Run all of the selftests within this file. */