thodg/libgit2/tests/t0000-oid.c

• Show log

  Commit

• Hash : b7c891c6
  Author :
  Date : 2008-11-03T17:31:16
  

  Add git_oid_cpy, git_oid_cmp as inline functions These are easily built off the standard C library functions memcpy and memcmp. By marking these inline we stand a good chance of the C compiler replacing the entire thing with tight machine code, because many compilers will actually inline a memcmp or memcpy when the 3rd argument (the size) is a constant value. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Download

• tests/t0000-oid.c

• #include "test_lib.h"
  #include <git/oid.h>
  
  BEGIN_TEST(empty_string)
  	git_oid out;
  	must_fail(git_oid_mkstr(&out, ""));
  END_TEST
  
  BEGIN_TEST(invalid_string_moo)
  	git_oid out;
  	must_fail(git_oid_mkstr(&out, "moo"));
  END_TEST
  
  static int from_hex(unsigned char i)
  {
  	if (i >= '0' && i <= '9')
  		return i - '0';
  	if (i >= 'a' && i <= 'f')
  		return 10 + (i - 'a');
  	if (i >= 'A' && i <= 'F')
  		return 10 + (i - 'A');
  	return -1;
  }
  
  BEGIN_TEST(invalid_string_all_chars)
  	git_oid out;
  	unsigned char exp[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  	char in[41] = "16a67770b7d8d72317c4b775213c23a8bd74f5e0\0";
  	unsigned int i;
  
  	for (i = 0; i < 256; i++) {
  		in[38] = (char)i;
  
  		if (from_hex(i) >= 0) {
  			exp[19] = (from_hex(i) << 4);
  			if (git_oid_mkstr(&out, in))
  				test_die("line %d: must accept '%s'", __LINE__, in);
  			if (memcmp(out.id, exp, sizeof(out.id)))
  				test_die("line %d: bad parse of '%s', %x != %x",
  				         __LINE__, in, exp[19], out.id[19]);
  		} else if (!git_oid_mkstr(&out, in))
  			test_die("line %d: must not accept '%s'", __LINE__, in);
  	}
  END_TEST
  
  BEGIN_TEST(invalid_string_16a67770b7d8d72317c4b775213c23a8bd74f5ez)
  	git_oid out;
  	must_fail(git_oid_mkstr(&out, "16a67770b7d8d72317c4b775213c23a8bd74f5ez"));
  END_TEST
  
  BEGIN_TEST(valid_string_16a67770b7d8d72317c4b775213c23a8bd74f5e0)
  	git_oid out;
  	unsigned char exp[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  
  	must_pass(git_oid_mkstr(&out, "16a67770b7d8d72317c4b775213c23a8bd74f5e0"));
  	must_pass(memcmp(out.id, exp, sizeof(out.id)));
  
  	must_pass(git_oid_mkstr(&out, "16A67770B7D8D72317C4b775213C23A8BD74F5E0"));
  	must_pass(memcmp(out.id, exp, sizeof(out.id)));
  END_TEST
  
  BEGIN_TEST(valid_raw)
  	git_oid out;
  	unsigned char exp[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  
  	git_oid_mkraw(&out, exp);
  	must_pass(memcmp(out.id, exp, sizeof(out.id)));
  END_TEST
  
  BEGIN_TEST(copy_oid)
  	git_oid a, b;
  	unsigned char exp[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  
  	memset(&b, 0, sizeof(b));
  	git_oid_mkraw(&a, exp);
  	git_oid_cpy(&b, &a);
  	must_pass(memcmp(a.id, exp, sizeof(a.id)));
  END_TEST
  
  BEGIN_TEST(cmp_oid_lt)
  	git_oid a, b;
  	unsigned char a_in[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  	unsigned char b_in[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xf0,
  	};
  
  	git_oid_mkraw(&a, a_in);
  	git_oid_mkraw(&b, b_in);
  	must_be_true(git_oid_cmp(&a, &b) < 0);
  END_TEST
  
  BEGIN_TEST(cmp_oid_eq)
  	git_oid a, b;
  	unsigned char a_in[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  
  	git_oid_mkraw(&a, a_in);
  	git_oid_mkraw(&b, a_in);
  	must_be_true(git_oid_cmp(&a, &b) == 0);
  END_TEST
  
  BEGIN_TEST(cmp_oid_gt)
  	git_oid a, b;
  	unsigned char a_in[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
  	};
  	unsigned char b_in[] = {
  		0x16, 0xa6, 0x77, 0x70, 0xb7,
  		0xd8, 0xd7, 0x23, 0x17, 0xc4,
  		0xb7, 0x75, 0x21, 0x3c, 0x23,
  		0xa8, 0xbd, 0x74, 0xf5, 0xd0,
  	};
  
  	git_oid_mkraw(&a, a_in);
  	git_oid_mkraw(&b, b_in);
  	must_be_true(git_oid_cmp(&a, &b) > 0);
  END_TEST
  

Download