gcc/ChangeLog:
* pretty-print.c (class selftest::test_pretty_printer): New
subclass of pretty_printer.
(selftest::test_prefixes_and_wrapping): New test.
(selftest::pretty_print_c_tests): Call it.
---
gcc/pretty-print.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 96 insertions(+)
diff --git a/gcc/pretty-print.c b/gcc/pretty-print.c
index 19ef75b..691dbb6 100644
--- a/gcc/pretty-print.c
+++ b/gcc/pretty-print.c
@@ -2217,6 +2217,101 @@ test_pp_format ()
"problem with %qs at line %i", "bar", 10);
}
+/* A subclass of pretty_printer for use by test_prefixes_and_wrapping. */
+
+class test_pretty_printer : public pretty_printer
+{
+ public:
+ test_pretty_printer (enum diagnostic_prefixing_rule_t rule,
+ int max_line_length)
+ {
+ pp_set_prefix (this, xstrdup ("PREFIX: "));
+ wrapping.rule = rule;
+ pp_set_line_maximum_length (this, max_line_length);
+ }
+};
+
+/* Verify that the various values of enum diagnostic_prefixing_rule_t work
+ as expected, with and without line wrapping. */
+
+static void
+test_prefixes_and_wrapping ()
+{
+ /* Tests of the various prefixing rules, without wrapping.
+ Newlines embedded in pp_string don't affect it; we have to
+ explicitly call pp_newline. */
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_ONCE, 0);
+ pp_string (&pp, "the quick brown fox");
+ pp_newline (&pp);
+ pp_string (&pp, "jumps over the lazy dog");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "PREFIX: the quick brown fox\n"
+ " jumps over the lazy dog\n");
+ }
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_NEVER, 0);
+ pp_string (&pp, "the quick brown fox");
+ pp_newline (&pp);
+ pp_string (&pp, "jumps over the lazy dog");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "the quick brown fox\n"
+ "jumps over the lazy dog\n");
+ }
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE, 0);
+ pp_string (&pp, "the quick brown fox");
+ pp_newline (&pp);
+ pp_string (&pp, "jumps over the lazy dog");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "PREFIX: the quick brown fox\n"
+ "PREFIX: jumps over the lazy dog\n");
+ }
+
+ /* Tests of the various prefixing rules, with wrapping. */
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_ONCE, 20);
+ pp_string (&pp, "the quick brown fox jumps over the lazy dog");
+ pp_newline (&pp);
+ pp_string (&pp, "able was I ere I saw elba");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "PREFIX: the quick \n"
+ " brown fox jumps \n"
+ " over the lazy \n"
+ " dog\n"
+ " able was I ere I \n"
+ " saw elba\n");
+ }
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_NEVER, 20);
+ pp_string (&pp, "the quick brown fox jumps over the lazy dog");
+ pp_newline (&pp);
+ pp_string (&pp, "able was I ere I saw elba");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "the quick brown fox \n"
+ "jumps over the lazy \n"
+ "dog\n"
+ "able was I ere I \n"
+ "saw elba\n");
+ }
+ {
+ test_pretty_printer pp (DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE, 20);
+ pp_string (&pp, "the quick brown fox jumps over the lazy dog");
+ pp_newline (&pp);
+ pp_string (&pp, "able was I ere I saw elba");
+ pp_newline (&pp);
+ ASSERT_STREQ (pp_formatted_text (&pp),
+ "PREFIX: the quick brown fox jumps over the lazy dog\n"
+ "PREFIX: able was I ere I saw elba\n");
+ }
+
+}
+
/* Run all of the selftests within this file. */
void
@@ -2224,6 +2319,7 @@ pretty_print_c_tests ()
{
test_basic_printing ();
test_pp_format ();
+ test_prefixes_and_wrapping ();
}
} // namespace selftest
--
1.8.5.3
