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https://frontier.innolan.net/rainlance/c-ares.git
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af3ee9a8ba
The tests are written in C++11, using the GoogleTest and GoogleMock
frameworks. They have their own independent autoconf setup, so that
users of the library need not have a C++ compiler just to get c-ares
working (however, the test/configure.ac file does assume the use of
a shared top-level m4/ directory). However, this autoconf setup has
only been tested on Linux and OSX so far.
Run with "./arestest", or "./arestest -v" to see extra debug info.
The GoogleTest options for running specific tests are also
available (e.g. "./arestest --gtest_filter=*Live*").
The tests are nowhere near complete yet (currently hitting around
60% coverage as reported by gcov), but they do include examples
of a few different styles of testing:
- There are live tests (ares-test-live.cc), which assume that the
current machine has a valid DNS setup and connection to the
internet; these tests issue queries for real domains but don't
particularly check what gets returned. The tests will fail on
an offline machine.
- There a few mock tests (ares-test-mock.cc) that set up a fake DNS
server and inject its port into the c-ares library configuration.
These tests allow specific response messages to be crafted and
injected, and so are likely to be used for many more tests in
future.
- To make this generation/injection easier, the dns-proto.h file
includes C++ helper classes for building DNS packets.
- Other library entrypoints that don't require network activity
(e.g. ares_parse_*_reply) are tested directly.
- There are few tests of library-internal functions that are not
normally visible to API users (in ares-test-internal.cc).
- A couple of the tests use a helper method of the test fixture to
inject memory allocation failures, using the earlier change to the
library to allow override of malloc/realloc/free.
- There is also an entrypoint to allow Clang's libfuzzer to drive
the packet parsing code in ares_parse_*_reply, together with a
standalone wrapper for it (./aresfuzz) to allow use of afl-fuzz
for further fuzz testing.
122 lines
3.6 KiB
C++
122 lines
3.6 KiB
C++
// This file includes tests that attempt to do real lookups
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// of DNS names using the local machine's live infrastructure.
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#include "ares-test.h"
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#include <netdb.h>
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namespace ares {
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namespace test {
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TEST_F(DefaultChannelTest, LiveGetHostByNameV4) {
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HostResult result;
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ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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EXPECT_LT(0, (int)result.host_.addrs_.size());
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EXPECT_EQ(AF_INET, result.host_.addrtype_);
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}
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TEST_F(DefaultChannelTest, LiveGetHostByNameV6) {
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HostResult result;
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ares_gethostbyname(channel_, "www.google.com.", AF_INET6, HostCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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EXPECT_LT(0, (int)result.host_.addrs_.size());
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EXPECT_EQ(AF_INET6, result.host_.addrtype_);
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}
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TEST_F(DefaultChannelTest, LiveGetHostByAddrV4) {
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HostResult result;
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unsigned char addr[4] = {8, 8, 8, 8};
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ares_gethostbyaddr(channel_, addr, sizeof(addr), AF_INET, HostCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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EXPECT_LT(0, (int)result.host_.addrs_.size());
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EXPECT_EQ(AF_INET, result.host_.addrtype_);
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}
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TEST_F(DefaultChannelTest, LiveGetHostByAddrV6) {
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HostResult result;
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unsigned char addr[16] = {0x20, 0x01, 0x48, 0x60, 0x48, 0x60, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x88};
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ares_gethostbyaddr(channel_, addr, sizeof(addr), AF_INET6, HostCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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EXPECT_LT(0, (int)result.host_.addrs_.size());
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EXPECT_EQ(AF_INET6, result.host_.addrtype_);
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}
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TEST_F(DefaultChannelTest, LiveSearchA) {
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SearchResult result;
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ares_search(channel_, "www.facebook.com.", ns_c_in, ns_t_a,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveSearchNS) {
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SearchResult result;
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ares_search(channel_, "google.com.", ns_c_in, ns_t_ns,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveSearchMX) {
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SearchResult result;
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ares_search(channel_, "google.com.", ns_c_in, ns_t_mx,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveSearchTXT) {
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SearchResult result;
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ares_search(channel_, "google.com.", ns_c_in, ns_t_txt,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveSearchSOA) {
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SearchResult result;
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ares_search(channel_, "google.com.", ns_c_in, ns_t_soa,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveSearchANY) {
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SearchResult result;
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ares_search(channel_, "facebook.com.", ns_c_in, ns_t_any,
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SearchCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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}
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TEST_F(DefaultChannelTest, LiveGetNameInfo) {
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NameInfoResult result;
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struct sockaddr_in sockaddr;
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memset(&sockaddr, 0, sizeof(sockaddr));
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sockaddr.sin_family = AF_INET;
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sockaddr.sin_port = htons(53);
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sockaddr.sin_addr.s_addr = htonl(0x08080808);
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ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr),
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ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP,
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NameInfoCallback, &result);
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Process();
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EXPECT_TRUE(result.done_);
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CARES_EXTERN void ares_getnameinfo(ares_channel channel,
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const struct sockaddr *sa,
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ares_socklen_t salen,
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int flags,
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ares_nameinfo_callback callback,
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void *arg);
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}
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} // namespace test
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} // namespace ares
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