dmime/tests: Test tempo track GetParam with GUID_TempoParam.

dlls/dmime/tests/dmime.c

@@ -3933,6 +3933,7 @@ static void test_tempo_track_play(void)
         {.lTime = 4000, .dblTempo = 50},
     };
     IDirectMusicPerformance *performance;
+    MUSIC_TIME next_time;
     IDirectMusicSegment *segment;
     IDirectMusicGraph *graph;
     IDirectMusicTrack *track;
@@ -4015,6 +4016,49 @@ static void test_tempo_track_play(void)
     ok(hr == S_OK, "got %#lx\n", hr);
     IDirectMusicTrack_Release(track);
 
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 0, NULL, NULL);
+    ok(hr == E_POINTER, "got %#lx\n", hr);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 0, NULL, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+
+    memset(&param, 0xcd, sizeof(param));
+    next_time = 0xdeadbeef;
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 0, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 100, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == 100, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 80, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 100, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 200, "got next_time %lu\n", next_time);
+    ok(param.mtTime == 0, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 80, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 199, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 101, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == -99, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 80, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 200, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 100, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == -100, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 80, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 299, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 1, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == -199, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 80, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 300, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    todo_wine ok(next_time == 3700, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == -100, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 20, "got dblTempo %f\n", param.dblTempo);
+    hr = IDirectMusicSegment_GetParam(segment, &GUID_TempoParam, -1, DMUS_SEG_ALLTRACKS, 5000, &next_time, &param);
+    todo_wine ok(hr == S_OK, "got %#lx\n", hr);
+    ok(next_time == 0, "got next_time %lu\n", next_time);
+    todo_wine ok(param.mtTime == -1000, "got mtTime %ld\n", param.mtTime);
+    todo_wine ok(param.dblTempo == 50, "got dblTempo %f\n", param.dblTempo);
+
 
     /* now play the segment, and check produced messages */