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test for LEB128 reader and writer

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This commit is contained in:
Nikita Smith
2026-02-05 19:45:35 -08:00
parent b0d0b6a2b2
commit 010f54674f
1 changed files with 61 additions and 0 deletions
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src/torture/torture_dwarf.c
+61
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@@ -3,6 +3,67 @@
#define T_Group "Dwarf"
internal U64
t_dw_test_uleb128(U64 v, U64 expected_length)
{
Temp scratch = scratch_begin(0, 0);
B32 is_ok = 0;
U64 v0 = v;
String8 e = dw_write_uleb128(scratch.arena, v0);
if (!(expected_length == e.size)) { goto exit; }
U64 v1;
U64 bytes_read = str8_deserial_read_uleb128(e, 0, &v1);
if (!(bytes_read == e.size)) { goto exit; }
if (!(v0 == v1)) { goto exit; }
is_ok = 1;
exit:;
scratch_end(scratch);
return is_ok;
}
internal U64
t_dw_test_sleb128(U64 v, U64 expected_length)
{
Temp scratch = scratch_begin(0,0);
B32 is_ok = 0;
U64 v0 = v;
String8 e = dw_write_sleb128(scratch.arena, v0);
if (!(expected_length == e.size)) { goto exit; }
U64 v1;
U64 bytes_read = str8_deserial_read_sleb128(e, 0, &v1);
if (!(bytes_read == e.size)) { goto exit; }
if (!(v0 == v1)) { goto exit; }
is_ok = 1;
exit:;
scratch_end(scratch);
return is_ok;
}
T_BeginTest(test_leb128)
{
T_Ok(t_dw_test_uleb128(0, 1));
T_Ok(t_dw_test_sleb128(0, 1));
T_Ok(t_dw_test_sleb128(-1, 1));
T_Ok(t_dw_test_uleb128(max_U64, 10));
T_Ok(t_dw_test_sleb128(min_S64, 10));
T_Ok(t_dw_test_sleb128(max_S64, 10));
for EachIndex(i, 64) {
T_Ok(t_dw_test_uleb128((1ull << i), 1 + (i / 7)));
}
for EachIndex(i, 64) {
T_Ok(t_dw_test_sleb128((1ull << i), 1 + (i + 1) / 7));
}
}
T_EndTest;
T_BeginTest(value_in_register)
{
// setup register context