diff --git a/dlls/d3dcompiler_43/tests/blob.c b/dlls/d3dcompiler_43/tests/blob.c
index 1c89238f068..f0510e02856 100644
--- a/dlls/d3dcompiler_43/tests/blob.c
+++ b/dlls/d3dcompiler_43/tests/blob.c
@@ -255,6 +255,10 @@ static void test_get_blob_part(void)
     /* D3D_BLOB_ALL_SIGNATURE_BLOB */
     hr = D3DGetBlobPart(test_blob_part, test_blob_part[6], D3D_BLOB_ALL_SIGNATURE_BLOB, 0, &blob);
     ok(hr == E_FAIL, "D3DGetBlobPart failed, got %x, expected %x\n", hr, E_FAIL);
+
+    /* D3D_BLOB_DEBUG_INFO */
+    hr = D3DGetBlobPart(test_blob_part, test_blob_part[6], D3D_BLOB_DEBUG_INFO, 0, &blob);
+    ok(hr == E_FAIL, "D3DGetBlobPart failed, got %x, expected %x\n", hr, E_FAIL);
 }
 
 /*
@@ -519,6 +523,26 @@ static void test_get_blob_part2(void)
 
     refcount = ID3D10Blob_Release(blob);
     ok(!refcount, "ID3DBlob has %u references left\n", refcount);
+
+    /* D3D_BLOB_DEBUG_INFO */
+    hr = D3DGetBlobPart(test_blob_part2, test_blob_part2[6], D3D_BLOB_DEBUG_INFO, 0, &blob);
+    ok(hr == S_OK, "D3DGetBlobPart failed, got %x, expected %x\n", hr, S_OK);
+
+    size = ID3D10Blob_GetBufferSize(blob);
+    ok(size == 4055, "GetBufferSize failed, got %lu, expected %u\n", size, 4055);
+
+    dword = ((DWORD*)ID3D10Blob_GetBufferPointer(blob));
+    ok(TAG_DXBC != *dword, "DXBC failed got %#x.\n", *dword);
+
+    for (i = 0; i < sizeof(parts) / sizeof(parts[0]); i++)
+    {
+        /* There isn't a full DXBC blob returned for D3D_BLOB_DEBUG_INFO */
+        hr = D3DGetBlobPart(dword, size, parts[i], 0, &blob2);
+        ok(hr == E_FAIL, "D3DGetBlobPart failed, got %x, expected %x\n", hr, E_FAIL);
+    }
+
+    refcount = ID3D10Blob_Release(blob);
+    ok(!refcount, "ID3DBlob has %u references left\n", refcount);
 }
 
 START_TEST(blob)