src/base/sat_counter.test.cc

38  * Test if the maximum value is indeed the maximum value reachable.
54  * Test if the minimum value is indeed the mimimum value reachable.
69  * Test initializing the counter with a value, updating it and then resetting.
92     for (double value = 0.0; value <= max_value; value++, counter++) {
93         const double saturation = value / max_value;
110     // Make sure the value added is what was missing to saturate
123     int value = 0;
125     ASSERT_EQ(counter++, value++);
126     ASSERT_EQ(counter++, value++);
127     ASSERT_EQ(counter--, value--);
128     ASSERT_EQ(counter++, value++);
129     ASSERT_EQ(counter++, value++);
130     ASSERT_EQ(counter--, value--);
131     ASSERT_EQ(counter++, value++);
132     ASSERT_EQ(counter--, value--);
133     ASSERT_EQ(counter--, value--);
134     ASSERT_EQ(counter++, value++);
135     ASSERT_EQ(counter--, value--);
136     ASSERT_EQ(counter--, value--);
150     // The saturated shift value is just enough to saturate, since greater
153     int value = initial_value;
157     value <<= 2;
158     ASSERT_EQ(counter, value);
160     value >>= 1;
161     ASSERT_EQ(counter, value);
173     value = initial_value;
175     value <<= other;
176     ASSERT_EQ(counter, value);
178     value = max_value;
183     value >>= other;
184     ASSERT_EQ(counter, value);
230     // Increase counter value so that we can check if the inner counter is
241     // Make sure max value is the same for all of them, and that modifying
253     // Make sure initial value is the same for all of them
282     int value = 0;
286     value += 2;
287     ASSERT_EQ(counter, value);
289     value += 3;
290     ASSERT_EQ(counter, value);
292     value = max_value;
293     ASSERT_EQ(counter, value);
297     value -= 2;
298     ASSERT_EQ(counter, value);
300     value -= 3;
301     ASSERT_EQ(counter, value);
303     value = 0;
304     ASSERT_EQ(counter, value);
308     value += other;
309     ASSERT_EQ(counter, value);
311     value = max_value;
316     value -= other;
317     ASSERT_EQ(counter, value);