[Darwin][Driver] Add unit tests.

llvm-svn: 183806

lld/unittests/DriverTests/CMakeLists.txt

@@ -1,6 +1,7 @@
 add_lld_unittest(DriverTests
   UniversalDriverTest.cpp
   GnuLdDriverTest.cpp
+  DarwinLdDriverTest.cpp
   WinLinkDriverTest.cpp
   )
 

lld/unittests/DriverTests/DarwinLdDriverTest.cpp

@@ -0,0 +1,89 @@
+//===- lld/unittest/DarwinLdDriverTest.cpp --------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Darwin's ld driver tests.
+///
+//===----------------------------------------------------------------------===//
+
+#include "DriverTest.h"
+
+#include "lld/ReaderWriter/MachOTargetInfo.h"
+#include "../../lib/ReaderWriter/MachO/MachOFormat.hpp"
+
+using namespace llvm;
+using namespace lld;
+
+namespace {
+
+class DarwinLdParserTest : public ParserTest<DarwinLdDriver, MachOTargetInfo> {
+protected:
+  virtual MachOTargetInfo* doParse(int argc, const char **argv,
+                                   raw_ostream &diag) {
+    auto *info = new MachOTargetInfo();
+    DarwinLdDriver::parse(argc, argv, *info, diag);
+    return info;
+  }
+};
+
+TEST_F(DarwinLdParserTest, Basic) {
+  parse("ld", "foo.o", "bar.o", nullptr);
+  EXPECT_FALSE(info->allowRemainingUndefines());
+  EXPECT_FALSE(info->deadStrip());
+  EXPECT_EQ(2, (int)inputFiles.size());
+  EXPECT_EQ("foo.o", inputFiles[0]);
+  EXPECT_EQ("bar.o", inputFiles[1]);
+}
+
+TEST_F(DarwinLdParserTest, Dylib) {
+  parse("ld", "-dylib", "foo.o", nullptr);
+  EXPECT_EQ(mach_o::MH_DYLIB, info->outputFileType());
+}
+
+TEST_F(DarwinLdParserTest, Relocatable) {
+  parse("ld", "-r", "foo.o", nullptr);
+  EXPECT_EQ(mach_o::MH_OBJECT, info->outputFileType());
+}
+
+TEST_F(DarwinLdParserTest, Bundle) {
+  parse("ld", "-bundle", "foo.o", nullptr);
+  EXPECT_EQ(mach_o::MH_BUNDLE, info->outputFileType());
+}
+
+TEST_F(DarwinLdParserTest, Preload) {
+  parse("ld", "-preload", "foo.o", nullptr);
+  EXPECT_EQ(mach_o::MH_PRELOAD, info->outputFileType());
+}
+
+TEST_F(DarwinLdParserTest, Static) {
+  parse("ld", "-static", "foo.o", nullptr);
+  EXPECT_EQ(mach_o::MH_EXECUTE, info->outputFileType());
+}
+
+TEST_F(DarwinLdParserTest, Entry) {
+  parse("ld", "-e", "entryFunc", "foo.o", nullptr);
+  EXPECT_EQ("entryFunc", info->entrySymbolName());
+}
+
+TEST_F(DarwinLdParserTest, OutputPath) {
+  parse("ld", "-o", "foo", "foo.o", nullptr);
+  EXPECT_EQ("foo", info->outputPath());
+}
+
+TEST_F(DarwinLdParserTest, DeadStrip) {
+  parse("ld", "-dead_strip", "foo.o", nullptr);
+  EXPECT_TRUE(info->deadStrip());
+}
+
+TEST_F(DarwinLdParserTest, Arch) {
+  parse("ld", "-arch", "x86_64", "foo.o", nullptr);
+  EXPECT_EQ(MachOTargetInfo::arch_x86_64, info->arch());
+}
+
+}  // end anonymous namespace