[PATCH v2 1/2] mfplat/tests: Test reading past the end of a file stream.

[Zebediah Figura]

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
---
 dlls/mfplat/tests/mfplat.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/dlls/mfplat/tests/mfplat.c b/dlls/mfplat/tests/mfplat.c
index 541459c715b..b9aa4bbb68d 100644
--- a/dlls/mfplat/tests/mfplat.c
+++ b/dlls/mfplat/tests/mfplat.c
@@ -1947,8 +1947,10 @@ static void test_file_stream(void)
     WCHAR pathW[MAX_PATH];
     DWORD caps, count;
     WCHAR *filename;
+    BYTE data[8];
     HRESULT hr;
     WCHAR *str;
+    ULONG size;
     BOOL eos;
 
     filename = load_resource(L"test.mp4");
@@ -2023,6 +2025,32 @@ static void test_file_stream(void)
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
     ok(position == 2 * bytestream_length, "Unexpected position.\n");
 
+    hr = IMFByteStream_IsEndOfStream(bytestream, &eos);
+    ok(hr == S_OK, "Failed query end of stream, hr %#x.\n", hr);
+    ok(eos == TRUE, "Unexpected IsEndOfStream result, %u.\n", eos);
+
+    size = 0xdeadbeef;
+    hr = IMFByteStream_Read(bytestream, data, sizeof(data), &size);
+    todo_wine ok(hr == HRESULT_FROM_WIN32(ERROR_HANDLE_EOF) || broken(hr == S_OK) /* win8 */,
+            "Unexpected hr %#x.\n", hr);
+    ok(!size || broken(size == 0xdeadbeef) /* win < 8 */, "Got size %u.\n", size);
+
+    hr = IMFByteStream_SetCurrentPosition(bytestream, bytestream_length - 4);
+    ok(hr == S_OK, "Failed to set bytestream position, hr %#x.\n", hr);
+
+    size = 0xdeadbeef;
+    hr = IMFByteStream_Read(bytestream, data, sizeof(data), &size);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+    ok(size == 4, "Got size %u.\n", size);
+
+    hr = IMFByteStream_SetCurrentPosition(bytestream, bytestream_length);
+    ok(hr == S_OK, "Failed to set bytestream position, hr %#x.\n", hr);
+
+    size = 0xdeadbeef;
+    hr = IMFByteStream_Read(bytestream, data, sizeof(data), &size);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+    ok(!size, "Got size %u.\n", size);
+
     hr = MFCreateFile(MF_ACCESSMODE_READ, MF_OPENMODE_FAIL_IF_NOT_EXIST,
                       MF_FILEFLAGS_NONE, filename, &bytestream2);
     ok(hr == S_OK, "got 0x%08x\n", hr);
-- 
2.33.0