cosmopolitan/test/libc/dns/dnsnamecmp_test.c

101 lines
4.7 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dns/dns.h"
#include "libc/str/str.h"
#include "libc/testlib/testlib.h"
TEST(dnsnamecmp, testEmpty) {
char *A = strcpy(tmalloc(1), "");
char *B = strcpy(tmalloc(1), "");
EXPECT_EQ(dnsnamecmp(A, B), 0);
EXPECT_EQ(dnsnamecmp(A, A), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testDotless_caseInsensitiveBehavior) {
char *A = tmalloc(2);
char *B = tmalloc(2);
EXPECT_EQ(dnsnamecmp(strcpy(A, "a"), strcpy(B, "a")), 0);
EXPECT_EQ(dnsnamecmp(A, A), 0);
EXPECT_EQ(dnsnamecmp(strcpy(A, "a"), strcpy(B, "A")), 0);
EXPECT_EQ(dnsnamecmp(strcpy(A, "A"), strcpy(B, "a")), 0);
EXPECT_LT(dnsnamecmp(strcpy(A, "a"), strcpy(B, "b")), 0);
EXPECT_LT(dnsnamecmp(strcpy(A, "a"), strcpy(B, "B")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "d"), strcpy(B, "a")), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testMultiLabel_lexiReverse) {
char *A = tmalloc(16);
char *B = tmalloc(16);
EXPECT_EQ(dnsnamecmp(strcpy(A, "a.example"), strcpy(B, "a.example")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "b.example"), strcpy(B, "a.example")), 0);
EXPECT_LT(dnsnamecmp(strcpy(A, "b.example"), strcpy(B, "a.examplz")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "a.zxample"), strcpy(B, "a.examplz")), 0);
EXPECT_EQ(dnsnamecmp(strcpy(A, "c.a.example"), strcpy(B, "c.a.example")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "d.a.example"), strcpy(B, "c.a.example")), 0);
EXPECT_LT(dnsnamecmp(strcpy(A, "cat.example"), strcpy(B, "lol.example")), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testTldDotQualifier_canBeEqualToDottedNames) {
char *A = tmalloc(16);
char *B = tmalloc(16);
EXPECT_EQ(dnsnamecmp(strcpy(B, "aaa.example."), strcpy(A, "aaa.example")), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testFullyQualified_alwaysComesFirst) {
char *A = tmalloc(16);
char *B = tmalloc(16);
EXPECT_LT(dnsnamecmp(strcpy(B, "aaa.example."), strcpy(A, "zzz")), 0);
EXPECT_LT(dnsnamecmp(strcpy(B, "zzz.example."), strcpy(A, "aaa")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "zzz"), strcpy(B, "aaa.example.")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "aaa"), strcpy(B, "zzz.example.")), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testLikelySld_alwaysComesBeforeLocalName) {
char *A = tmalloc(16);
char *B = tmalloc(16);
EXPECT_LT(dnsnamecmp(strcpy(B, "z.e"), strcpy(A, "a")), 0);
EXPECT_LT(dnsnamecmp(strcpy(B, "aaa.example"), strcpy(A, "zzz")), 0);
EXPECT_LT(dnsnamecmp(strcpy(B, "zzz.example"), strcpy(A, "aaa")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "zzz"), strcpy(B, "aaa.example")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "aaa"), strcpy(B, "zzz.example")), 0);
tfree(B);
tfree(A);
}
TEST(dnsnamecmp, testLikelySubdomain_alwaysComesAfterSld) {
char *A = tmalloc(16);
char *B = tmalloc(16);
EXPECT_LT(dnsnamecmp(strcpy(B, "a.e"), strcpy(A, "z.a.e")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "z.a.e"), strcpy(B, "a.e")), 0);
EXPECT_LT(dnsnamecmp(strcpy(B, "b.e"), strcpy(A, "a.b.e")), 0);
EXPECT_GT(dnsnamecmp(strcpy(A, "a.b.e"), strcpy(B, "b.e")), 0);
tfree(B);
tfree(A);
}