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Commit 56d66769 authored by Mike Yu's avatar Mike Yu
Browse files

Test: add test UseDohAsLongAsHostnameMatch 

This is a test for aosp/2598287 that DnsResolver can use the
DoH servers of an allowed DoH provider even if the servers
are not listed in the DoH list.

Bug: 286969157
Test: test passed
Change-Id: I68a381b6ef57ad01300a5f5492eca794efdec785
parent a687b69a

tests/resolv_private_dns_test.cpp

+29 −0
Original line number Diff line number Diff line
@@ -1175,3 +1175,32 @@ TEST_F(PrivateDnsDohTest, ReceiveResetStream) { 
    expectAnswersValid(fd, AF_INET6, kQueryAnswerAAAA);

    EXPECT_NO_FAILURE(expectQueries(0 /* dns */, 1 /* dot */, 2 /* doh */));

}



// Tests that, given an IP address with an allowed DoH provider name, PrivateDnsConfiguration

// attempts to probe the server for DoH.

TEST_F(PrivateDnsDohTest, UseDohAsLongAsHostnameMatch) {

    // "example.com" is an allowed DoH provider name defined in

    // PrivateDnsConfiguration::mAvailableDoHProviders.

    constexpr char allowedDohName[] = "example.com";

    constexpr char someOtherIp[] = "127.99.99.99";



    // The test currently doesn't support testing DoH in private DNS strict mode, so DnsResolver

    // can't connect to the testing DoH servers. We use onPrivateDnsValidationEvent() to check

    // whether DoT/DoH probes are performed.

    // Without an allowed private DNS provider hostname, expect PrivateDnsConfiguration to probe

    // the server for DoT only.

    ASSERT_TRUE(mDnsClient.SetResolversFromParcel(

            ResolverParams::Builder().setDotServers({someOtherIp}).build()));

    EXPECT_TRUE(WaitForDotValidation(someOtherIp, false));

    EXPECT_FALSE(hasUncaughtPrivateDnsValidation(someOtherIp));



    // With an allowed private DNS provider hostname, expect PrivateDnsConfiguration to probe the

    // server for both DoT and DoH.

    ASSERT_TRUE(mDnsClient.SetResolversFromParcel(ResolverParams::Builder()

                                                          .setDotServers({someOtherIp})

                                                          .setPrivateDnsProvider(allowedDohName)

                                                          .build()));

    EXPECT_TRUE(WaitForDotValidation(someOtherIp, false));

    EXPECT_TRUE(WaitForDohValidation(someOtherIp, false));

    EXPECT_FALSE(hasUncaughtPrivateDnsValidation(someOtherIp));

}