From 8c955bc4bd1d0dbe4b2823f4327ad52bf9856fd7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=BCnther=20Foidl?= <gue@korporal.at>
Date: Mon, 6 Apr 2020 20:58:31 +0200
Subject: [PATCH] Native tests

---
 src/libraries/Native/Unix/CMakeLists.txt      |  2 +
 .../Native/Unix/System.Native/CMakeLists.txt  | 31 +++++++
 .../Native/Unix/System.Native/tests.c         | 86 +++++++++++++++++++
 3 files changed, 119 insertions(+)
 create mode 100644 src/libraries/Native/Unix/System.Native/tests.c

diff --git a/src/libraries/Native/Unix/CMakeLists.txt b/src/libraries/Native/Unix/CMakeLists.txt
index b3c9613a0e10b..0769eaf19d73c 100644
--- a/src/libraries/Native/Unix/CMakeLists.txt
+++ b/src/libraries/Native/Unix/CMakeLists.txt
@@ -210,3 +210,5 @@ endif()
 if(CLR_CMAKE_TARGET_OSX OR CLR_CMAKE_TARGET_IOS)
     add_subdirectory(System.Security.Cryptography.Native.Apple)
 endif()
+
+enable_testing()
diff --git a/src/libraries/Native/Unix/System.Native/CMakeLists.txt b/src/libraries/Native/Unix/System.Native/CMakeLists.txt
index bf2e3787607fc..aae0a19eef445 100644
--- a/src/libraries/Native/Unix/System.Native/CMakeLists.txt
+++ b/src/libraries/Native/Unix/System.Native/CMakeLists.txt
@@ -80,3 +80,34 @@ endif ()
 set_target_properties(System.Native-Static PROPERTIES OUTPUT_NAME System.Native CLEAN_DIRECT_OUTPUT 1)
 
 install (TARGETS System.Native-Static DESTINATION .)
+
+if (HAVE_GETADDRINFO_A)
+    add_executable(tests
+        tests.c
+    )
+
+    target_link_libraries(tests
+        System.Native
+        pthread
+    )
+
+    enable_testing()
+
+    add_test(no_args tests)
+    set_tests_properties(no_args PROPERTIES WILL_FAIL TRUE)
+    set_tests_properties(no_args PROPERTIES TIMEOUT 1)
+
+    add_test(hostname_local tests localhost)
+    set_tests_properties(hostname_local PROPERTIES TIMEOUT 1)
+
+    add_test(hostname_ok tests google.at)
+    set_tests_properties(hostname_ok PROPERTIES TIMEOUT 1)
+
+    add_test(hostname_invalid tests abc.test01)
+    set_tests_properties(hostname_invalid PROPERTIES WILL_FAIL TRUE)
+    set_tests_properties(hostname_invalid PROPERTIES TIMEOUT 1)
+
+    add_test(hostname_null tests null)
+    set_tests_properties(hostname_null PROPERTIES WILL_FAIL TRUE)
+    set_tests_properties(hostname_null PROPERTIES TIMEOUT 1)
+endif ()
diff --git a/src/libraries/Native/Unix/System.Native/tests.c b/src/libraries/Native/Unix/System.Native/tests.c
new file mode 100644
index 0000000000000..e555cadd9c143
--- /dev/null
+++ b/src/libraries/Native/Unix/System.Native/tests.c
@@ -0,0 +1,86 @@
+#include "pal_networking.h"
+
+#include <arpa/inet.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <string.h>
+
+struct state
+{
+    HostEntry entry;
+    char* hostName;
+    int errorCode;
+    sem_t semaphore;
+};
+
+static void callback(HostEntry* entry, int errorCode)
+{
+    printf("(%lu) handler: enter, errorCode: %d\n", pthread_self(), errorCode);
+
+    struct state* state = (struct state*)entry;
+
+    if (errorCode == 0)
+    {
+        printf("(%lu) callback: # of addresses = %d\n", pthread_self(), entry->IPAddressCount);
+        for (int i = 0; i < entry->IPAddressCount; ++i)
+        {
+            IPAddress ipAddress = entry->IPAddressList[i];
+
+            char buffer[256];
+            inet_ntop(ipAddress.IsIPv6 ? AF_INET6 : AF_INET, ipAddress.Address, buffer, sizeof(buffer));
+            printf("(%lu) ip for %s: %s\n", pthread_self(), entry->CanonicalName, buffer);
+        }
+    }
+
+    state->errorCode = errorCode;
+
+    sem_post(&state->semaphore);
+}
+
+int main(int argc, char** argv)
+{
+    if (argc != 2)
+    {
+        printf("hostname must be given as argument\n");
+        return EXIT_FAILURE;
+    }
+
+    if (!SystemNative_PlatformSupportsGetAddrInfoAsync())
+    {
+        printf("platform support not available\n");
+        return EXIT_FAILURE;
+    }
+
+    printf("platform support available\n");
+
+    char* hostName = argv[1];
+    printf("(%lu) hostname: %s\n", pthread_self(), hostName);
+
+    if (strcmp(hostName, "null")==0)
+    {
+        hostName = NULL;
+    }
+
+    struct state state;
+    sem_init(&state.semaphore, 0, 0);
+
+    int error = SystemNative_GetHostEntryForNameAsync((uint8_t*)hostName, &state.entry, callback);
+
+    if (error != 0)
+    {
+        printf("(%lu) OS call failed with error %d\n", pthread_self(), error);
+        return EXIT_FAILURE;
+    }
+
+    printf("(%lu) main: waiting for semaphore\n", pthread_self());
+
+    sem_wait(&state.semaphore);
+    sem_destroy(&state.semaphore);
+
+    printf("(%lu) main: exit, errorCode: %d\n", pthread_self(), state.errorCode);
+
+    return state.errorCode;
+}