[gcc r14-5473] json.cc: use SELFTEST_LOCATION in selftests

[gcc r14-5473] json.cc: use SELFTEST_LOCATION in selftests

[David Malcolm]

https://gcc.gnu.org/g:2220263f0e032a6af3cea44a17735833baa5fd93

commit r14-5473-g2220263f0e032a6af3cea44a17735833baa5fd93
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Tue Nov 14 19:48:48 2023 -0500

    json.cc: use SELFTEST_LOCATION in selftests
    
    gcc/ChangeLog:
            * json.cc (selftest::assert_print_eq): Add "loc" param and use
            ASSERT_STREQ_AT.
            (ASSERT_PRINT_EQ): New macro.
            (selftest::test_writing_objects): Use ASSERT_PRINT_EQ to capture
            source location of assertion.
            (selftest::test_writing_arrays): Likewise.
            (selftest::test_writing_float_numbers): Likewise.
            (selftest::test_writing_integer_numbers): Likewise.
            (selftest::test_writing_strings): Likewise.
            (selftest::test_writing_literals): Likewise.
    
    Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Diff:
---
 gcc/json.cc | 51 +++++++++++++++++++++++++++------------------------
 1 file changed, 27 insertions(+), 24 deletions(-)

diff --git a/gcc/json.cc b/gcc/json.cc
index f5398ece066..d0f157f0dfe 100644
--- a/gcc/json.cc
+++ b/gcc/json.cc
@@ -322,13 +322,16 @@ namespace selftest {
 /* Verify that JV->print () prints EXPECTED_JSON.  */
 
 static void
-assert_print_eq (const json::value &jv, const char *expected_json)
+assert_print_eq (const location &loc, const json::value &jv, const char *expected_json)
 {
   pretty_printer pp;
   jv.print (&pp);
-  ASSERT_STREQ (expected_json, pp_formatted_text (&pp));
+  ASSERT_STREQ_AT (loc, expected_json, pp_formatted_text (&pp));
 }
 
+#define ASSERT_PRINT_EQ(JV, EXPECTED_JSON) \
+  assert_print_eq (SELFTEST_LOCATION, JV, EXPECTED_JSON)
+
 /* Verify that object::get works as expected.  */
 
 static void
@@ -351,7 +354,7 @@ test_writing_objects ()
   obj.set_string ("baz", "quux");
   /* This test relies on json::object writing out key/value pairs
      in key-insertion order.  */
-  assert_print_eq (obj, "{\"foo\": \"bar\", \"baz\": \"quux\"}");
+  ASSERT_PRINT_EQ (obj, "{\"foo\": \"bar\", \"baz\": \"quux\"}");
 }
 
 /* Verify that JSON arrays are written correctly.  */
@@ -360,13 +363,13 @@ static void
 test_writing_arrays ()
 {
   array arr;
-  assert_print_eq (arr, "[]");
+  ASSERT_PRINT_EQ (arr, "[]");
 
   arr.append (new json::string ("foo"));
-  assert_print_eq (arr, "[\"foo\"]");
+  ASSERT_PRINT_EQ (arr, "[\"foo\"]");
 
   arr.append (new json::string ("bar"));
-  assert_print_eq (arr, "[\"foo\", \"bar\"]");
+  ASSERT_PRINT_EQ (arr, "[\"foo\", \"bar\"]");
 }
 
 /* Verify that JSON numbers are written correctly.  */
@@ -374,20 +377,20 @@ test_writing_arrays ()
 static void
 test_writing_float_numbers ()
 {
-  assert_print_eq (float_number (0), "0");
-  assert_print_eq (float_number (42), "42");
-  assert_print_eq (float_number (-100), "-100");
-  assert_print_eq (float_number (123456789), "1.23457e+08");
+  ASSERT_PRINT_EQ (float_number (0), "0");
+  ASSERT_PRINT_EQ (float_number (42), "42");
+  ASSERT_PRINT_EQ (float_number (-100), "-100");
+  ASSERT_PRINT_EQ (float_number (123456789), "1.23457e+08");
 }
 
 static void
 test_writing_integer_numbers ()
 {
-  assert_print_eq (integer_number (0), "0");
-  assert_print_eq (integer_number (42), "42");
-  assert_print_eq (integer_number (-100), "-100");
-  assert_print_eq (integer_number (123456789), "123456789");
-  assert_print_eq (integer_number (-123456789), "-123456789");
+  ASSERT_PRINT_EQ (integer_number (0), "0");
+  ASSERT_PRINT_EQ (integer_number (42), "42");
+  ASSERT_PRINT_EQ (integer_number (-100), "-100");
+  ASSERT_PRINT_EQ (integer_number (123456789), "123456789");
+  ASSERT_PRINT_EQ (integer_number (-123456789), "-123456789");
 }
 
 /* Verify that JSON strings are written correctly.  */
@@ -396,16 +399,16 @@ static void
 test_writing_strings ()
 {
   string foo ("foo");
-  assert_print_eq (foo, "\"foo\"");
+  ASSERT_PRINT_EQ (foo, "\"foo\"");
 
   string contains_quotes ("before \"quoted\" after");
-  assert_print_eq (contains_quotes, "\"before \\\"quoted\\\" after\"");
+  ASSERT_PRINT_EQ (contains_quotes, "\"before \\\"quoted\\\" after\"");
 
   const char data[] = {'a', 'b', 'c', 'd', '\0', 'e', 'f'};
   string not_terminated (data, 3);
-  assert_print_eq (not_terminated, "\"abc\"");
+  ASSERT_PRINT_EQ (not_terminated, "\"abc\"");
   string embedded_null (data, sizeof data);
-  assert_print_eq (embedded_null, "\"abcd\\0ef\"");
+  ASSERT_PRINT_EQ (embedded_null, "\"abcd\\0ef\"");
 }
 
 /* Verify that JSON literals are written correctly.  */
@@ -413,12 +416,12 @@ test_writing_strings ()
 static void
 test_writing_literals ()
 {
-  assert_print_eq (literal (JSON_TRUE), "true");
-  assert_print_eq (literal (JSON_FALSE), "false");
-  assert_print_eq (literal (JSON_NULL), "null");
+  ASSERT_PRINT_EQ (literal (JSON_TRUE), "true");
+  ASSERT_PRINT_EQ (literal (JSON_FALSE), "false");
+  ASSERT_PRINT_EQ (literal (JSON_NULL), "null");
 
-  assert_print_eq (literal (true), "true");
-  assert_print_eq (literal (false), "false");
+  ASSERT_PRINT_EQ (literal (true), "true");
+  ASSERT_PRINT_EQ (literal (false), "false");
 }
 
 /* Run all of the selftests within this file.  */