[PATCH] scrrun/tests: Skip BOM reading tests if we don't know the right result

[Alex Henrie]

Signed-off-by: Alex Henrie 
---
 dlls/scrrun/tests/filesystem.c | 80 ++++++++++++++++++++++------------
 1 file changed, 52 insertions(+), 28 deletions(-)

diff --git a/dlls/scrrun/tests/filesystem.c b/dlls/scrrun/tests/filesystem.c
index 29ee73f243..d84828ec75 100644
--- a/dlls/scrrun/tests/filesystem.c
+++ b/dlls/scrrun/tests/filesystem.c
@@ -1469,6 +1469,7 @@ static void test_CreateTextFile(void)
     HANDLE file;
     HRESULT hr;
     BOOL ret;
+    INT len;

get_temp_filepath(testfileW, pathW, dirW);

@@ -1519,17 +1520,24 @@ static void test_CreateTextFile(void)
     ITextStream_Release(stream);

/* File was created in Unicode mode, it contains 0xfffe BOM. Opening it in non-Unicode mode
-       treats BOM like a valuable data with appropriate CP_ACP -> WCHAR conversion. */
-    buffW[0] = 0;
-    MultiByteToWideChar(CP_ACP, 0, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
-
-    hr = IFileSystem3_OpenTextFile(fs3, nameW, ForReading, VARIANT_FALSE, TristateFalse, &stream);
-    ok(hr == S_OK, "got 0x%08x\n", hr);
-    hr = ITextStream_ReadAll(stream, &str);
-    ok(hr == S_FALSE || broken(hr == S_OK) /* win2k */, "got 0x%08x\n", hr);
-    ok(!lstrcmpW(str, buffW), "got %s, expected %s\n", wine_dbgstr_w(str), wine_dbgstr_w(buffW));
-    SysFreeString(str);
-    ITextStream_Release(stream);
+       treats BOM like valuable data with appropriate CP_ACP -> WCHAR conversion. */
+    len = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
+    if (len)
+    {
+        hr = IFileSystem3_OpenTextFile(fs3, nameW, ForReading, VARIANT_FALSE, TristateFalse, &stream);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+        hr = ITextStream_ReadAll(stream, &str);
+        ok(hr == S_FALSE || broken(hr == S_OK) /* win2003 */, "got 0x%08x\n", hr);
+        ok(!lstrcmpW(str, buffW), "got %s, expected %s\n", wine_dbgstr_w(str), wine_dbgstr_w(buffW));
+        SysFreeString(str);
+        ITextStream_Release(stream);
+    }
+    else
+    {
+        /* ITextStream lets invalid characters through, but MultiByteToWideChar doesn't.
+         * This happens in Chinese, Japanese, and Korean locales. */
+        skip("Can't determine how byte order mark should be (mis)interpreted in this locale\n");
+    }

DeleteFileW(nameW);
     RemoveDirectoryW(dirW);
@@ -1615,6 +1623,7 @@ static void test_ReadAll(void)
     HRESULT hr;
     BOOL ret;
     BSTR str;
+    INT len;

get_temp_filepath(testfileW, pathW, dirW);

@@ -1651,13 +1660,21 @@ static void test_ReadAll(void)
     ok(hr == E_POINTER, "got 0x%08x\n", hr);

/* Buffer content is not interpreted - BOM is kept, all data is converted to WCHARs */
-    str = NULL;
-    hr = ITextStream_ReadAll(stream, &str);
-    ok(hr == S_FALSE || broken(hr == S_OK) /* win2k */, "got 0x%08x\n", hr);
-    buffW[0] = 0;
-    MultiByteToWideChar(CP_ACP, 0, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
-    ok(str[0] == buffW[0] && str[1] == buffW[1], "got %s, %d\n", wine_dbgstr_w(str), SysStringLen(str));
-    SysFreeString(str);
+    len = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
+    if (len)
+    {
+        str = NULL;
+        hr = ITextStream_ReadAll(stream, &str);
+        ok(hr == S_FALSE || broken(hr == S_OK) /* win2003 */, "got 0x%08x\n", hr);
+        ok(str[0] == buffW[0] && str[1] == buffW[1], "got %s, %d\n", wine_dbgstr_w(str), SysStringLen(str));
+        SysFreeString(str);
+    }
+    else
+    {
+        /* ITextStream lets invalid characters through, but MultiByteToWideChar doesn't.
+         * This happens in Chinese, Japanese, and Korean locales. */
+        skip("Can't determine how byte order mark should be (mis)interpreted in this locale\n");
+    }
     ITextStream_Release(stream);

/* Unicode file -> read with unicode stream */
@@ -1744,6 +1761,7 @@ static void test_Read(void)
     HRESULT hr;
     BOOL ret;
     BSTR str;
+    INT len;

get_temp_filepath(testfileW, pathW, dirW);

@@ -1796,16 +1814,22 @@ static void test_Read(void)
     ok(str == NULL, "got %p\n", str);

/* Buffer content is not interpreted - BOM is kept, all data is converted to WCHARs */
-    str = NULL;
-    hr = ITextStream_Read(stream, 2, &str);
-    ok(hr == S_OK, "got 0x%08x\n", hr);
-
-    buffW[0] = 0;
-    MultiByteToWideChar(CP_ACP, 0, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
-
-    ok(!lstrcmpW(str, buffW), "got %s, expected %s\n", wine_dbgstr_w(str), wine_dbgstr_w(buffW));
-    ok(SysStringLen(str) == 2, "got %d\n", SysStringLen(str));
-    SysFreeString(str);
+    len = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, utf16bom, -1, buffW, ARRAY_SIZE(buffW));
+    if (len)
+    {
+        str = NULL;
+        hr = ITextStream_Read(stream, 2, &str);
+        ok(hr == S_OK, "got 0x%08x\n", hr);
+        ok(!lstrcmpW(str, buffW), "got %s, expected %s\n", wine_dbgstr_w(str), wine_dbgstr_w(buffW));
+        ok(SysStringLen(str) == 2, "got %d\n", SysStringLen(str));
+        SysFreeString(str);
+    }
+    else
+    {
+        /* ITextStream lets invalid characters through, but MultiByteToWideChar doesn't.
+         * This happens in Chinese, Japanese, and Korean locales. */
+        skip("Can't determine how byte order mark should be (mis)interpreted in this locale\n");
+    }
     ITextStream_Release(stream);

/* Unicode file -> read with unicode stream */