172     VerifyOrQuit(Preference::kHigh == 1);  in TestPreference()
173     VerifyOrQuit(Preference::kMedium == 0);  in TestPreference()
174     VerifyOrQuit(Preference::kLow == -1);  in TestPreference()
177     VerifyOrQuit(Preference::To2BitUint(Preference::kHigh) == 0x1);  in TestPreference()
178     VerifyOrQuit(Preference::To2BitUint(Preference::kMedium) == 0x0);  in TestPreference()
179     VerifyOrQuit(Preference::To2BitUint(Preference::kLow) == 0x3);  in TestPreference()
180     VerifyOrQuit(Preference::To2BitUint(2) == 0x1);  in TestPreference()
181     VerifyOrQuit(Preference::To2BitUint(-2) == 0x3);  in TestPreference()
182     VerifyOrQuit(Preference::To2BitUint(127) == 0x1);  in TestPreference()
183     VerifyOrQuit(Preference::To2BitUint(-128) == 0x3);  in TestPreference()
186     VerifyOrQuit(Preference::From2BitUint(0x1) == Preference::kHigh);  in TestPreference()
187     VerifyOrQuit(Preference::From2BitUint(0x0) == Preference::kMedium);  in TestPreference()
188     VerifyOrQuit(Preference::From2BitUint(0x3) == Preference::kLow);  in TestPreference()
189     VerifyOrQuit(Preference::From2BitUint(0x2) == Preference::kMedium);  in TestPreference()
191     VerifyOrQuit(Preference::From2BitUint(0x1 | 4) == Preference::kHigh);  in TestPreference()
192     VerifyOrQuit(Preference::From2BitUint(0x0 | 4) == Preference::kMedium);  in TestPreference()
193     VerifyOrQuit(Preference::From2BitUint(0x3 | 4) == Preference::kLow);  in TestPreference()
194     VerifyOrQuit(Preference::From2BitUint(0x2 | 4) == Preference::kMedium);  in TestPreference()
196     VerifyOrQuit(Preference::From2BitUint(0x1 | 0xfc) == Preference::kHigh);  in TestPreference()
197     VerifyOrQuit(Preference::From2BitUint(0x0 | 0xfc) == Preference::kMedium);  in TestPreference()
198     VerifyOrQuit(Preference::From2BitUint(0x3 | 0xfc) == Preference::kLow);  in TestPreference()
199     VerifyOrQuit(Preference::From2BitUint(0x2 | 0xfc) == Preference::kMedium);  in TestPreference()
202     VerifyOrQuit(Preference::IsValid(Preference::kHigh));  in TestPreference()
203     VerifyOrQuit(Preference::IsValid(Preference::kMedium));  in TestPreference()
204     VerifyOrQuit(Preference::IsValid(Preference::kLow));  in TestPreference()
206     VerifyOrQuit(!Preference::IsValid(2));  in TestPreference()
207     VerifyOrQuit(!Preference::IsValid(-2));  in TestPreference()
208     VerifyOrQuit(!Preference::IsValid(127));  in TestPreference()
209     VerifyOrQuit(!Preference::IsValid(-128));  in TestPreference()
212     VerifyOrQuit(Preference::Is2BitUintValid(0x1));  in TestPreference()
213     VerifyOrQuit(Preference::Is2BitUintValid(0x0));  in TestPreference()
214     VerifyOrQuit(Preference::Is2BitUintValid(0x3));  in TestPreference()
215     VerifyOrQuit(!Preference::Is2BitUintValid(0x2));  in TestPreference()
217     VerifyOrQuit(Preference::Is2BitUintValid(0x1 | 4));  in TestPreference()
218     VerifyOrQuit(Preference::Is2BitUintValid(0x0 | 4));  in TestPreference()
219     VerifyOrQuit(Preference::Is2BitUintValid(0x3 | 4));  in TestPreference()
220     VerifyOrQuit(!Preference::Is2BitUintValid(0x2 | 4));  in TestPreference()
222     VerifyOrQuit(Preference::Is2BitUintValid(0x1 | 0xfc));  in TestPreference()
223     VerifyOrQuit(Preference::Is2BitUintValid(0x0 | 0xfc));  in TestPreference()
224     VerifyOrQuit(Preference::Is2BitUintValid(0x3 | 0xfc));  in TestPreference()
225     VerifyOrQuit(!Preference::Is2BitUintValid(0x2 | 0xfc));  in TestPreference()