[SHLWAPI_APITEST]: Commit few tests for PathUnExpandEnvStrings.

[reactos.git] / rostests / apitests / shlwapi / PathUnExpandEnvStrings.c

diff --git a/rostests/apitests/shlwapi/PathUnExpandEnvStrings.c b/rostests/apitests/shlwapi/PathUnExpandEnvStrings.c
new file mode 100644 (file)
index 0000000..c7da336
--- /dev/null
+++ b/rostests/apitests/shlwapi/PathUnExpandEnvStrings.c
@@ -0,0 +1,119 @@
+/*
+ * PROJECT:         ReactOS api tests
+ * LICENSE:         LGPLv2.1+ - See COPYING.LIB in the top level directory
+ * PURPOSE:         Tests for PathUnExpandEnvStrings
+ * PROGRAMMERS:     Hermes Belusca-Maito
+ */
+
+#include <apitest.h>
+#include <shlwapi.h>
+#include <strsafe.h>
+
+#define DO_TEST(Res, TestStr, ExpStr) \
+do { \
+    BOOL ret = PathUnExpandEnvStringsW((TestStr), OutStr, _countof(OutStr)); \
+    ok(ret == (Res), "Tested %s, expected returned value %d, got %d\n", \
+       wine_dbgstr_w((TestStr)), (Res), ret); \
+    if (ret) \
+        ok(_wcsicmp(OutStr, (ExpStr)) == 0, "Tested %s, expected %s, got %s\n", \
+           wine_dbgstr_w((TestStr)), wine_dbgstr_w((ExpStr)), wine_dbgstr_w(OutStr)); \
+} while (0)
+
+START_TEST(PathUnExpandEnvStrings)
+{
+    INT len;
+    DWORD ret;
+    WCHAR TestStr[MAX_PATH];
+    WCHAR ExpStr[MAX_PATH];
+    WCHAR OutStr[MAX_PATH];
+
+    /*
+     * We expect here that the following standard environment variables:
+     * %COMPUTERNAME%, %ProgramFiles%, %SystemRoot% and %SystemDrive%
+     * are correctly defined.
+     */
+
+    /* No unexpansion possible */
+    DO_TEST(FALSE, L"ZZ:\\foobar\\directory", L"");
+
+    /* Contrary to what MSDN says, %COMPUTERNAME% does not seeem to be unexpanded... */
+    ret = GetEnvironmentVariableW(L"COMPUTERNAME", TestStr, _countof(TestStr));
+    ok(ret, "got %lu\n", ret);
+    DO_TEST(FALSE, TestStr, L"%COMPUTERNAME%");
+#if 0
+    StringCchCopyW(TestStr, _countof(TestStr), L"ZZ:\\foobar\\");
+    len = wcslen(TestStr);
+    ret = GetEnvironmentVariableW(L"COMPUTERNAME", TestStr + len, _countof(TestStr) - len);
+    ok(ret, "got %lu\n", ret);
+    StringCchCatW(TestStr, _countof(TestStr), L"\\directory");
+    DO_TEST(TRUE, TestStr, L"ZZ:\\foobar\\%COMPUTERNAME%\\directory");
+#endif
+
+    /*
+     * L"%SystemRoot%\\%SystemRoot%" to L"%SystemRoot%\\%SystemRoot%" (no expansion)
+     * Unexpansion fails.
+     * This shows that given a path string, if PathUnExpandEnvStrings fails,
+     * the string could have been already unexpanded...
+     */
+    DO_TEST(FALSE, L"%SystemRoot%\\%SystemRoot%", L"%SystemRoot%\\%SystemRoot%");
+
+    /*
+     * L"<real_SystemRoot><real_SystemRoot>" to L"%SystemRoot%<real_SystemRoot>"
+     * example: L"C:\\WindowsC:\\Windows"
+     * Unexpansion succeeds only on the first path.
+     */
+    ret = GetEnvironmentVariableW(L"SystemRoot", TestStr, _countof(TestStr));
+    ok(ret, "got %lu\n", ret);
+    len = wcslen(TestStr);
+    ret = GetEnvironmentVariableW(L"SystemRoot", TestStr + len, _countof(TestStr) - len);
+    ok(ret, "got %lu\n", ret);
+
+    StringCchCopyW(ExpStr, _countof(ExpStr), L"%SystemRoot%");
+    len = wcslen(ExpStr);
+    ret = GetEnvironmentVariableW(L"SystemRoot", ExpStr + len, _countof(ExpStr) - len);
+    ok(ret, "got %lu\n", ret);
+    DO_TEST(TRUE, TestStr, ExpStr);
+
+    /*
+     * L"%SystemRoot%\\<real_Program_Files>" to L"%SystemRoot%\\%ProgramFiles%"
+     * Unexpansion fails.
+     */
+    StringCchCopyW(TestStr, _countof(TestStr), L"%SystemRoot%\\");
+    len = wcslen(TestStr);
+    ret = GetEnvironmentVariableW(L"ProgramFiles", TestStr + len, _countof(TestStr) - len);
+    ok(ret, "got %lu\n", ret);
+    DO_TEST(FALSE, TestStr, L"%SystemRoot%\\%ProgramFiles%");
+
+    /*
+     * L"<real_SystemRoot>\\%ProgramFiles%" to L"%SystemRoot%\\%ProgramFiles%"
+     * Unexpansion succeeds.
+     */
+    ret = GetEnvironmentVariableW(L"SystemRoot", TestStr, _countof(TestStr));
+    ok(ret, "got %lu\n", ret);
+    StringCchCatW(TestStr, _countof(TestStr), L"\\%ProgramFiles%");
+    DO_TEST(TRUE, TestStr, L"%SystemRoot%\\%ProgramFiles%");
+
+    /*
+     * L"<real_SystemRoot>\\notepad.exe <real_SystemRoot>\\file.txt" to L"%SystemRoot%\\notepad.exe %SystemRoot%\\file.txt"
+     * Unexpansion succeeds only on the first path, therefore the obtained string is not the one naively expected.
+     */
+    ret = GetEnvironmentVariableW(L"SystemRoot", TestStr, _countof(TestStr));
+    ok(ret, "got %lu\n", ret);
+    StringCchCatW(TestStr, _countof(TestStr), L"\\notepad.exe ");
+    len = wcslen(TestStr);
+    ret = GetEnvironmentVariableW(L"SystemRoot", TestStr + len, _countof(TestStr) - len);
+    ok(ret, "got %lu\n", ret);
+    StringCchCatW(TestStr, _countof(TestStr), L"\\file.txt");
+    // DO_TEST(TRUE, TestStr, L"%SystemRoot%\\notepad.exe %SystemRoot%\\file.txt");
+
+    /*
+     * L"<real_SystemRoot>\\notepad.exe <real_SystemRoot>\\file.txt" to L"%SystemRoot%\\notepad.exe <real_SystemRoot>\\file.txt"
+     * Unexpansion succeeds only on the first path.
+     */
+    StringCchCopyW(ExpStr, _countof(ExpStr), L"%SystemRoot%\\notepad.exe ");
+    len = wcslen(ExpStr);
+    ret = GetEnvironmentVariableW(L"SystemRoot", ExpStr + len, _countof(ExpStr) - len);
+    ok(ret, "got %lu\n", ret);
+    StringCchCatW(ExpStr, _countof(ExpStr), L"\\file.txt");
+    DO_TEST(TRUE, TestStr, ExpStr);
+}