Remove dependencies from Utility to Core and Target.

With this patch, the only dependency left is from Utility
to Host.  After this is broken, Utility will finally be
standalone.

Differential Revision: https://reviews.llvm.org/D29909

llvm-svn: 295088

1 files changed, 169 insertions, 0 deletions

diff --git a/lldb/unittests/Target/ModuleCacheTest.cpp b/lldb/unittests/Target/ModuleCacheTest.cpp
new file mode 100644
index 00000000000..09b3edc4148
--- /dev/null
+++ b/lldb/unittests/Target/ModuleCacheTest.cpp
@@ -0,0 +1,169 @@
+#include "gtest/gtest.h"
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+
+#include "Plugins/ObjectFile/ELF/ObjectFileELF.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Target/ModuleCache.h"
+
+extern const char *TestMainArgv0;
+
+using namespace lldb_private;
+using namespace lldb;
+
+namespace {
+
+class ModuleCacheTest : public testing::Test {
+public:
+  static void SetUpTestCase();
+
+  static void TearDownTestCase();
+
+protected:
+  static FileSpec s_cache_dir;
+  static llvm::SmallString<128> s_test_executable;
+
+  void TryGetAndPut(const FileSpec &cache_dir, const char *hostname,
+                    bool expect_download);
+};
+}
+
+FileSpec ModuleCacheTest::s_cache_dir;
+llvm::SmallString<128> ModuleCacheTest::s_test_executable;
+
+static const char dummy_hostname[] = "dummy_hostname";
+static const char dummy_remote_dir[] = "bin";
+static const char module_name[] = "TestModule.so";
+static const char module_uuid[] =
+    "F4E7E991-9B61-6AD4-0073-561AC3D9FA10-C043A476";
+static const uint32_t uuid_bytes = 20;
+static const size_t module_size = 5602;
+
+static FileSpec GetDummyRemotePath() {
+  FileSpec fs("/", false, FileSpec::ePathSyntaxPosix);
+  fs.AppendPathComponent(dummy_remote_dir);
+  fs.AppendPathComponent(module_name);
+  return fs;
+}
+
+static FileSpec GetUuidView(FileSpec spec) {
+  spec.AppendPathComponent(".cache");
+  spec.AppendPathComponent(module_uuid);
+  spec.AppendPathComponent(module_name);
+  return spec;
+}
+
+static FileSpec GetSysrootView(FileSpec spec, const char *hostname) {
+  spec.AppendPathComponent(hostname);
+  spec.AppendPathComponent(dummy_remote_dir);
+  spec.AppendPathComponent(module_name);
+  return spec;
+}
+
+void ModuleCacheTest::SetUpTestCase() {
+  HostInfo::Initialize();
+  ObjectFileELF::Initialize();
+
+  FileSpec tmpdir_spec;
+  HostInfo::GetLLDBPath(lldb::ePathTypeLLDBTempSystemDir, s_cache_dir);
+
+  llvm::StringRef exe_folder = llvm::sys::path::parent_path(TestMainArgv0);
+  s_test_executable = exe_folder;
+  llvm::sys::path::append(s_test_executable, "Inputs", module_name);
+}
+
+void ModuleCacheTest::TearDownTestCase() {
+  ObjectFileELF::Terminate();
+  HostInfo::Terminate();
+}
+
+static void VerifyDiskState(const FileSpec &cache_dir, const char *hostname) {
+  FileSpec uuid_view = GetUuidView(cache_dir);
+  EXPECT_TRUE(uuid_view.Exists()) << "uuid_view is: " << uuid_view.GetCString();
+  EXPECT_EQ(module_size, uuid_view.GetByteSize());
+
+  FileSpec sysroot_view = GetSysrootView(cache_dir, hostname);
+  EXPECT_TRUE(sysroot_view.Exists()) << "sysroot_view is: "
+                                     << sysroot_view.GetCString();
+  EXPECT_EQ(module_size, sysroot_view.GetByteSize());
+}
+
+void ModuleCacheTest::TryGetAndPut(const FileSpec &cache_dir,
+                                   const char *hostname, bool expect_download) {
+  ModuleCache mc;
+  ModuleSpec module_spec;
+  module_spec.GetFileSpec() = GetDummyRemotePath();
+  module_spec.GetUUID().SetFromCString(module_uuid, uuid_bytes);
+  module_spec.SetObjectSize(module_size);
+  ModuleSP module_sp;
+  bool did_create;
+  bool download_called = false;
+
+  Error error = mc.GetAndPut(
+      cache_dir, hostname, module_spec,
+      [this, &download_called](const ModuleSpec &module_spec,
+                               const FileSpec &tmp_download_file_spec) {
+        download_called = true;
+        EXPECT_STREQ(GetDummyRemotePath().GetCString(),
+                     module_spec.GetFileSpec().GetCString());
+        std::error_code ec = llvm::sys::fs::copy_file(
+            s_test_executable, tmp_download_file_spec.GetCString());
+        EXPECT_FALSE(ec);
+        return Error();
+      },
+      [](const ModuleSP &module_sp, const FileSpec &tmp_download_file_spec) {
+        return Error("Not supported.");
+      },
+      module_sp, &did_create);
+  EXPECT_EQ(expect_download, download_called);
+
+  EXPECT_TRUE(error.Success()) << "Error was: " << error.AsCString();
+  EXPECT_TRUE(did_create);
+  ASSERT_TRUE(bool(module_sp));
+
+  SymbolContextList sc_list;
+  EXPECT_EQ(1u, module_sp->FindFunctionSymbols(ConstString("boom"),
+                                               eFunctionNameTypeFull, sc_list));
+  EXPECT_STREQ(GetDummyRemotePath().GetCString(),
+               module_sp->GetPlatformFileSpec().GetCString());
+  EXPECT_STREQ(module_uuid, module_sp->GetUUID().GetAsString().c_str());
+}
+
+TEST_F(ModuleCacheTest, GetAndPut) {
+  FileSpec test_cache_dir = s_cache_dir;
+  test_cache_dir.AppendPathComponent("GetAndPut");
+
+  const bool expect_download = true;
+  TryGetAndPut(test_cache_dir, dummy_hostname, expect_download);
+  VerifyDiskState(test_cache_dir, dummy_hostname);
+}
+
+TEST_F(ModuleCacheTest, GetAndPutUuidExists) {
+  FileSpec test_cache_dir = s_cache_dir;
+  test_cache_dir.AppendPathComponent("GetAndPutUuidExists");
+
+  FileSpec uuid_view = GetUuidView(test_cache_dir);
+  std::error_code ec =
+      llvm::sys::fs::create_directories(uuid_view.GetDirectory().GetCString());
+  ASSERT_FALSE(ec);
+  ec = llvm::sys::fs::copy_file(s_test_executable, uuid_view.GetCString());
+  ASSERT_FALSE(ec);
+
+  const bool expect_download = false;
+  TryGetAndPut(test_cache_dir, dummy_hostname, expect_download);
+  VerifyDiskState(test_cache_dir, dummy_hostname);
+}
+
+TEST_F(ModuleCacheTest, GetAndPutStrangeHostname) {
+  FileSpec test_cache_dir = s_cache_dir;
+  test_cache_dir.AppendPathComponent("GetAndPutStrangeHostname");
+
+  const bool expect_download = true;
+  TryGetAndPut(test_cache_dir, "tab\tcolon:asterisk*", expect_download);
+  VerifyDiskState(test_cache_dir, "tab_colon_asterisk_");
+}