lldb/unittests/Host/HostInfoTest.cpp

   1 //===-- HostInfoTest.cpp --------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Host/HostInfo.h"
  10 #include "TestingSupport/SubsystemRAII.h"
  11 #include "TestingSupport/TestUtilities.h"
  12 #include "lldb/Host/FileSystem.h"
  13 #include "lldb/lldb-defines.h"
  14 #include "llvm/TargetParser/Host.h"
  15 #include "gtest/gtest.h"
  16
  17 using namespace lldb_private;
  18 using namespace llvm;
  19
  20 namespace {
  21 class HostInfoTest : public ::testing::Test {
  22   SubsystemRAII<FileSystem, HostInfo> subsystems;
  23 };
  24 } // namespace
  25
  26 TEST_F(HostInfoTest, GetAugmentedArchSpec) {
  27   // Fully specified triple should not be changed.
  28   ArchSpec spec = HostInfo::GetAugmentedArchSpec("x86_64-pc-linux-gnu");
  29   EXPECT_EQ(spec.GetTriple().getTriple(), "x86_64-pc-linux-gnu");
  30
  31   // Same goes if we specify at least one of (os, vendor, env).
  32   spec = HostInfo::GetAugmentedArchSpec("x86_64-pc");
  33   EXPECT_EQ(spec.GetTriple().getTriple(), "x86_64-pc");
  34
  35   // But if we specify only an arch, we should fill in the rest from the host.
  36   spec = HostInfo::GetAugmentedArchSpec("x86_64");
  37   Triple triple(sys::getDefaultTargetTriple());
  38   EXPECT_EQ(spec.GetTriple().getArch(), Triple::x86_64);
  39   EXPECT_EQ(spec.GetTriple().getOS(), triple.getOS());
  40   EXPECT_EQ(spec.GetTriple().getVendor(), triple.getVendor());
  41   EXPECT_EQ(spec.GetTriple().getEnvironment(), triple.getEnvironment());
  42
  43   // Test LLDB_ARCH_DEFAULT
  44   EXPECT_EQ(HostInfo::GetAugmentedArchSpec(LLDB_ARCH_DEFAULT).GetTriple(),
  45             HostInfo::GetArchitecture(HostInfo::eArchKindDefault).GetTriple());
  46   EXPECT_NE(
  47       HostInfo::GetAugmentedArchSpec("armv7k").GetTriple().getEnvironmentName(),
  48       "unknown");
  49 }
  50
  51 TEST_F(HostInfoTest, GetHostname) {
  52   // Check non-empty string input works correctly.
  53   std::string s("abc");
  54   EXPECT_TRUE(HostInfo::GetHostname(s));
  55 }
  56
  57 #if defined(__APPLE__)
  58 TEST_F(HostInfoTest, GetXcodeSDK) {
  59   auto get_sdk = [](std::string sdk, bool error = false) -> llvm::StringRef {
  60     auto sdk_path_or_err =
  61         HostInfo::GetSDKRoot(HostInfo::SDKOptions{XcodeSDK(std::move(sdk))});
  62     if (!error) {
  63       EXPECT_TRUE((bool)sdk_path_or_err);
  64       return *sdk_path_or_err;
  65     }
  66     EXPECT_FALSE((bool)sdk_path_or_err);
  67     llvm::consumeError(sdk_path_or_err.takeError());
  68     return {};
  69   };
  70   EXPECT_FALSE(get_sdk("MacOSX.sdk").empty());
  71   // These are expected to fall back to an available version.
  72   EXPECT_FALSE(get_sdk("MacOSX9999.sdk").empty());
  73   // This is expected to fail.
  74   EXPECT_TRUE(get_sdk("CeciNestPasUnOS.sdk", true).empty());
  75 }
  76
  77 TEST_F(HostInfoTest, FindSDKTool) {
  78   auto find_tool = [](std::string sdk, llvm::StringRef tool,
  79                       bool error = false) -> llvm::StringRef {
  80     auto sdk_path_or_err =
  81         HostInfo::FindSDKTool(XcodeSDK(std::move(sdk)), tool);
  82     if (!error) {
  83       EXPECT_TRUE((bool)sdk_path_or_err);
  84       return *sdk_path_or_err;
  85     }
  86     EXPECT_FALSE((bool)sdk_path_or_err);
  87     llvm::consumeError(sdk_path_or_err.takeError());
  88     return {};
  89   };
  90   EXPECT_FALSE(find_tool("MacOSX.sdk", "clang").empty());
  91   EXPECT_TRUE(find_tool("MacOSX.sdk", "CeciNestPasUnOutil").empty());
  92 }
  93 #endif
  94
  95 TEST(HostInfoTestInitialization, InitTwice) {
  96   llvm::VersionTuple Version;
  97   {
  98     SubsystemRAII<FileSystem, HostInfo> subsystems;
  99     Version = HostInfo::GetOSVersion();
 100   }
 101
 102   {
 103     SubsystemRAII<FileSystem, HostInfo> subsystems;
 104     EXPECT_EQ(Version, HostInfo::GetOSVersion());
 105   }
 106 }