MSVCRT: Add test case for BUG 8598

[Uwe Bonnes]

---
 dlls/msvcrt/tests/printf.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/dlls/msvcrt/tests/printf.c b/dlls/msvcrt/tests/printf.c
index cea4db3..72add3f 100644
--- a/dlls/msvcrt/tests/printf.c
+++ b/dlls/msvcrt/tests/printf.c
@@ -601,6 +601,25 @@ static void test_snprintf (void)
     };
 }
 
+/* fopen without additional ",ccs=<encoding>" mode string opens files 
+ * in ANSI mode
+ */ 
+static void test_fwprintf(void)
+{
+  long size;
+  const wchar_t teststr[] = {'T','e','s','t','\n', 0};
+  FILE * fp = fopen("fwprintf.txt", "w");
+  fwprintf(fp, teststr);
+  fclose(fp);
+  fp = fopen("fwprintf.txt", "rt");
+  fseek(fp,0, SEEK_END);
+  size = ftell(fp);
+  todo_wine ok (size == lstrlenW(teststr) +1, 
+	    "fwprintf on byte oriented stream failed\n");
+  fclose (fp);
+  unlink("fwprintf.txt");
+}
+
 static void test_fcvt(void)
 {
     char *str;
@@ -857,6 +876,7 @@ START_TEST(printf)
     test_sprintf();
     test_swprintf();
     test_snprintf();
+    test_fwprintf();
     test_fcvt();
     test_xcvt();
     test_vsnwprintf();
-- 
1.6.4.2