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tests: Add a basic test for GScanner’s int_2_float configuration

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I can see why use of `GScanner` is discouraged. Eww.

See https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4387/diffs#note_2269329

Choose a large enough int to cause problems if `long` storage isn’t used
throughout the parse chain.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
This commit is contained in:
Philip Withnall 2025-02-06 12:21:23 +00:00
parent 8e39ad2660
commit d4245f70d4
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1 changed files with 23 additions and 0 deletions
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23
glib/tests/scannerapi.c
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@ -156,6 +156,28 @@ test_scanner_multiline_comment (void)
g_scanner_destroy (scanner);
}
static void
test_scanner_int_to_float (void)
{
GScanner *scanner = NULL;
const char buf[] = "4294967295";
const size_t buflen = strlen (buf);
scanner = g_scanner_new (NULL);
scanner->config->int_2_float = TRUE;
g_scanner_input_text (scanner, buf, buflen);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_NONE);
g_scanner_get_next_token (scanner);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_FLOAT);
g_assert_cmpint (g_scanner_cur_line (scanner), ==, 1);
g_assert_cmpfloat (g_scanner_cur_value (scanner).v_float, ==, 4294967295.0);
g_assert_cmpint (g_scanner_get_next_token (scanner), ==, G_TOKEN_EOF);
g_scanner_destroy (scanner);
}
static void
test_scanner_fd_input (void)
{
@ -286,6 +308,7 @@ main (int argc,
g_test_add ("/scanner/symbols", ScannerFixture, 0, scanner_fixture_setup, test_scanner_symbols, scanner_fixture_teardown);
g_test_add ("/scanner/tokens", ScannerFixture, 0, scanner_fixture_setup, test_scanner_tokens, scanner_fixture_teardown);
g_test_add_func ("/scanner/multiline-comment", test_scanner_multiline_comment);
g_test_add_func ("/scanner/int-to-float", test_scanner_int_to_float);
g_test_add_func ("/scanner/fd-input", test_scanner_fd_input);
g_test_add_func ("/scanner/fd-input/rewind", test_scanner_fd_input_rewind);