gcc/unittests/ChangeLog:
* test-locations.c: New file.
---
gcc/unittests/test-locations.c | 148 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 148 insertions(+)
create mode 100644 gcc/unittests/test-locations.c
diff --git a/gcc/unittests/test-locations.c b/gcc/unittests/test-locations.c
new file mode 100644
index 0000000..7c93594
--- /dev/null
+++ b/gcc/unittests/test-locations.c
@@ -0,0 +1,148 @@
+/* Unit tests for GCC's source location-handling (and thus libcpp).
+ Copyright (C) 2015 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include <gtest/gtest.h>
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "opts.h"
+#include "signop.h"
+#include "hash-set.h"
+#include "fixed-value.h"
+#include "alias.h"
+#include "flags.h"
+#include "symtab.h"
+#include "tree-core.h"
+#include "stor-layout.h"
+#include "tree.h"
+#include "stringpool.h"
+#include "stor-layout.h"
+#include "predict.h"
+#include "vec.h"
+#include "hashtab.h"
+#include "hash-set.h"
+#include "machmode.h"
+
+namespace {
+
+/* Fixture for testing location-handling.
+ Creates some pre-canned location_t values. */
+
+class location_test : public ::testing::Test
+{
+ protected:
+ location_test ()
+ {
+ /* Build a simple linemap describing some locations. */
+ linemap_add (line_table, LC_ENTER, false, "foo.c", 0);
+
+ linemap_line_start (line_table, 1, 100);
+ loc_a = linemap_position_for_column (line_table, 1);
+ loc_b = linemap_position_for_column (line_table, 23);
+
+ linemap_line_start (line_table, 2, 100);
+ loc_c = linemap_position_for_column (line_table, 1);
+ loc_d = linemap_position_for_column (line_table, 17);
+
+ /* Example of a very long line. */
+ linemap_line_start (line_table, 3, 2000);
+ loc_e = linemap_position_for_column (line_table, 700);
+
+ linemap_add (line_table, LC_LEAVE, false, NULL, 0);
+
+ /* Multiple files. */
+ linemap_add (line_table, LC_ENTER, false, "bar.c", 0);
+ linemap_line_start (line_table, 1, 200);
+ loc_f = linemap_position_for_column (line_table, 150);
+ linemap_add (line_table, LC_LEAVE, false, NULL, 0);
+ }
+
+ /* Verify the result of LOCATION_FILE/LOCATION_LINE/LOCATION_COLUMN
+ on LOC. */
+ void
+ expect_loceq (const char *exp_filename,
+ int exp_linenum,
+ int exp_colnum,
+ location_t loc)
+ {
+ EXPECT_STREQ (exp_filename, LOCATION_FILE (loc));
+ EXPECT_EQ (exp_linenum, LOCATION_LINE (loc));
+ EXPECT_EQ (exp_colnum, LOCATION_COLUMN (loc));
+ }
+
+ location_t loc_a;
+ location_t loc_b;
+ location_t loc_c;
+ location_t loc_d;
+ location_t loc_e;
+ location_t loc_f;
+};
+
+/* Verify basic operation of ordinary linemaps. */
+
+TEST_F (location_test, accessing_ordinary_linemaps)
+{
+ /* Verify that we can recover the location info. */
+ expect_loceq ("foo.c", 1, 1, loc_a);
+ expect_loceq ("foo.c", 1, 23, loc_b);
+ expect_loceq ("foo.c", 2, 1, loc_c);
+ expect_loceq ("foo.c", 2, 17, loc_d);
+ expect_loceq ("foo.c", 3, 700, loc_e);
+ expect_loceq ("bar.c", 1, 150, loc_f);
+}
+
+TEST_F (location_test, unknown_location)
+{
+ EXPECT_EQ (NULL, LOCATION_FILE (UNKNOWN_LOCATION));
+ EXPECT_EQ (0, LOCATION_LINE (UNKNOWN_LOCATION));
+ EXPECT_EQ (0, LOCATION_COLUMN (UNKNOWN_LOCATION));
+}
+
+TEST_F (location_test, builtins)
+{
+ expect_loceq ("<built-in>", 0, 0, BUILTINS_LOCATION);
+ EXPECT_PRED1 (is_location_from_builtin_token, BUILTINS_LOCATION);
+ EXPECT_FALSE (is_location_from_builtin_token (loc_a));
+}
+
+/* Verify reading of input files (e.g. for caret-based diagnostics. */
+
+TEST_F (location_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__;
+
+ /* Locate the precanned text above. */
+ expanded_location xloc;
+ xloc.file = __FILE__;
+ xloc.line = linenum_after_test_message - 1;
+ xloc.column = 0;
+
+ int line_size;
+ const char *source_line = location_get_source_line (xloc, &line_size);
+ EXPECT_TRUE (source_line != NULL);
+ EXPECT_STREQ (" The quick brown fox jumps over the lazy dog. */",
+ source_line);
+ EXPECT_EQ (53, line_size);
+}
+
+} /* anon namespace. */
--
1.8.5.3
