diff options
Diffstat (limited to 'tests/test-qemu-opts.c')
| -rw-r--r-- | tests/test-qemu-opts.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/tests/test-qemu-opts.c b/tests/test-qemu-opts.c index 8bbb17b1c7..6568e31a72 100644 --- a/tests/test-qemu-opts.c +++ b/tests/test-qemu-opts.c @@ -654,9 +654,9 @@ static void test_opts_parse_size(void) g_assert_cmpuint(opts_count(opts), ==, 1); g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 0); - /* Note: precision is 53 bits since we're parsing with strtod() */ + /* Note: full 64 bits of precision */ - /* Around limit of precision: 2^53-1, 2^53, 2^54 */ + /* Around double limit of precision: 2^53-1, 2^53, 2^53+1 */ opts = qemu_opts_parse(&opts_list_02, "size1=9007199254740991," "size2=9007199254740992," @@ -668,18 +668,21 @@ static void test_opts_parse_size(void) g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1), ==, 0x20000000000000); g_assert_cmphex(qemu_opt_get_size(opts, "size3", 1), - ==, 0x20000000000000); + ==, 0x20000000000001); - /* Close to signed upper limit 0x7ffffffffffffc00 (53 msbs set) */ + /* Close to signed int limit: 2^63-1, 2^63, 2^63+1 */ opts = qemu_opts_parse(&opts_list_02, - "size1=9223372036854774784," /* 7ffffffffffffc00 */ - "size2=9223372036854775295", /* 7ffffffffffffdff */ + "size1=9223372036854775807," /* 7fffffffffffffff */ + "size2=9223372036854775808," /* 8000000000000000 */ + "size3=9223372036854775809", /* 8000000000000001 */ false, &error_abort); - g_assert_cmpuint(opts_count(opts), ==, 2); + g_assert_cmpuint(opts_count(opts), ==, 3); g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1), - ==, 0x7ffffffffffffc00); + ==, 0x7fffffffffffffff); g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1), - ==, 0x7ffffffffffffc00); + ==, 0x8000000000000000); + g_assert_cmphex(qemu_opt_get_size(opts, "size3", 1), + ==, 0x8000000000000001); /* Close to actual upper limit 0xfffffffffffff800 (53 msbs set) */ opts = qemu_opts_parse(&opts_list_02, @@ -690,14 +693,22 @@ static void test_opts_parse_size(void) g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1), ==, 0xfffffffffffff800); g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1), - ==, 0xfffffffffffff800); + ==, 0xfffffffffffffbff); + + /* Actual limit, 2^64-1 */ + opts = qemu_opts_parse(&opts_list_02, + "size1=18446744073709551615", /* ffffffffffffffff */ + false, &error_abort); + g_assert_cmpuint(opts_count(opts), ==, 1); + g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1), + ==, 0xffffffffffffffff); /* Beyond limits */ opts = qemu_opts_parse(&opts_list_02, "size1=-1", false, &err); error_free_or_abort(&err); g_assert(!opts); opts = qemu_opts_parse(&opts_list_02, - "size1=18446744073709550592", /* fffffffffffffc00 */ + "size1=18446744073709551616", /* 2^64 */ false, &err); error_free_or_abort(&err); g_assert(!opts); |