d3dx9/tests: Add more tests for IsParameterUsed() function.

dlls/d3dx9_36/tests/effect.c

@@ -5937,6 +5937,34 @@ static void test_effect_shared_parameters(IDirect3DDevice9 *device)
     effect3->lpVtbl->GetFloat(effect3, param, &fvect.x);
     ok(fvect.x == 0.0f, "Unexpected parameter value %g.\n", fvect.x);
 
+    param = effect1->lpVtbl->GetParameterByName(effect1, NULL, "arr2");
+    ok(!!param, "GetParameterByName failed.\n");
+    ok(!effect3->lpVtbl->IsParameterUsed(effect3, param, "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+
+    param = effect3->lpVtbl->GetParameterByName(effect3, NULL, "arr2");
+    ok(!!param, "GetParameterByName failed.\n");
+    ok(effect3->lpVtbl->IsParameterUsed(effect3, param, "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+
+    param = effect1->lpVtbl->GetParameterByName(effect1, NULL, "vs_arr2");
+    ok(!!param, "GetParameterByName failed.\n");
+    ok(!effect3->lpVtbl->IsParameterUsed(effect3, param, "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+
+    todo_wine
+    ok(effect3->lpVtbl->IsParameterUsed(effect3, "vs_arr2", "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+    todo_wine
+    ok(!effect3->lpVtbl->IsParameterUsed(effect3, "vs_arr2[0]", "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+    todo_wine
+    ok(!effect3->lpVtbl->IsParameterUsed(effect3, "vs_arr2[1]", "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+
+    ok(effect1->lpVtbl->IsParameterUsed(effect1, param, "tech0"),
+            "Unexpected IsParameterUsed result.\n");
+
     hr = effect3->lpVtbl->Begin(effect3, &passes_count, 0);
     ok(hr == D3D_OK, "Got result %#x.\n", hr);