adb_test/libbase_test: win32: get some tests working

adb_test:

* Fix adb_utils directory_exists test for Windows. The test actually
fails because directory_exists() is not aware of junctions or symlinks,
but I'm not really sure if that is a bad thing (since these are rare on
Windows to begin with).

* Fix crash during transport tests due to mutex not being initialized.

* io tests fail for various reasons (see adb_io_test.cpp for more info).

libbase_test:

* Get it building on Win32 by implementing mkstemp() and mkdtemp().

* Run StringPrintf %z test on Windows because it passes because we build
with __USE_MINGW_ANSI_STDIO which implements %z.

* I didn't fixup the logging tests: some logging tests fail because when
abort() is called on Windows, by default it pops up UI asking whether a
crash dump should be sent to Microsoft. To some degree this makes sense,
as I think LOG(FATAL) does crash dumping in Chromium. This should be
revisited in the future.

Change-Id: Iaa2433e5294ff162e0b2aa9fe6e4ec09a6893f7a
Signed-off-by: Spencer Low <CompareAndSwap@gmail.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/adb/adb_utils_test.cpp b/adb/adb_utils_test.cpp
index 309ac02c98..9c9f85c7da 100644
--- a/adb/adb_utils_test.cpp
+++ b/adb/adb_utils_test.cpp
@@ -16,6 +16,13 @@
 
 #include "adb_utils.h"
 
+#ifdef _WIN32
+#include <windows.h>
+#include <userenv.h>
+#endif
+
+#include <string>
+
 #include <gtest/gtest.h>
 
 #include <stdlib.h>
@@ -23,12 +30,46 @@
 
 #include "sysdeps.h"
 
+#include <base/macros.h>
 #include <base/test_utils.h>
 
+#ifdef _WIN32
+static std::string subdir(const char* parent, const char* child) {
+  std::string str(parent);
+  str += OS_PATH_SEPARATOR;
+  str += child;
+  return str;
+}
+#endif
+
 TEST(adb_utils, directory_exists) {
+#ifdef _WIN32
+  char profiles_dir[MAX_PATH];
+  DWORD cch = arraysize(profiles_dir);
+
+  // On typical Windows 7, returns C:\Users
+  ASSERT_TRUE(GetProfilesDirectory(profiles_dir, &cch));
+
+  ASSERT_TRUE(directory_exists(profiles_dir));
+
+  // On modern (English?) Windows, this is a directory symbolic link to
+  // C:\ProgramData. Symbolic links are rare on Windows and the user requires
+  // a special permission (by default granted to Administrative users) to
+  // create symbolic links.
+  ASSERT_FALSE(directory_exists(subdir(profiles_dir, "All Users")));
+
+  // On modern (English?) Windows, this is a directory junction to
+  // C:\Users\Default. Junctions are used throughout user profile directories
+  // for backwards compatibility and they don't require any special permissions
+  // to create.
+  ASSERT_FALSE(directory_exists(subdir(profiles_dir, "Default User")));
+
+  ASSERT_FALSE(directory_exists(subdir(profiles_dir, "does-not-exist")));
+#else
   ASSERT_TRUE(directory_exists("/proc"));
   ASSERT_FALSE(directory_exists("/proc/self")); // Symbolic link.
   ASSERT_FALSE(directory_exists("/proc/does-not-exist"));
+#endif
 }
 
 TEST(adb_utils, escape_arg) {