stats: Add linear group-by test with an exact multiple step

diff --git a/src/stats/test-stats-metrics.c b/src/stats/test-stats-metrics.c
index cfed2ab7697edc43360dc482cc827d87be982181..6702ea6597413e1fe2fd3e182eba65dbff07d19f 100644 (file)
--- a/src/stats/test-stats-metrics.c
+++ b/src/stats/test-stats-metrics.c
@@ -261,7 +261,7 @@ static void test_stats_metrics_group_by_discrete(void)
                test_stats_metrics_group_by_discrete_real(&discrete_tests[i], i);
 }
 
-#define QUANTIZED_TEST_VAL_COUNT       15
+#define QUANTIZED_TEST_VAL_COUNT       30
 struct quantized_test {
        const char *const *settings_blob;
        unsigned int num_inputs;
@@ -302,6 +302,45 @@ static const struct quantized_test quantized_tests[] = {
                  { { 1000, INTMAX_MAX }, 2 },
                }
        },
+       {
+               (const char *const []){
+                 "metric/test/group_by/foobar/method=linear",
+                 "metric/test/group_by/foobar/method/linear/method=linear",
+                 "metric/test/group_by/foobar/method/linear/min=500",
+                 "metric/test/group_by/foobar/method/linear/max=10000",
+                 "metric/test/group_by/foobar/method/linear/step=500",
+                 NULL },
+               26,
+               {
+                       0, 50, 100, 101, 200, 201, 250, 301, 900, 901, 1000, 1001, 1500,
+                       2000, 2001, 2200, 8000, 8001, 8200, 8500, 9000, 9001,
+                       10000, 10001, 10500, 15000,
+               },
+               11,
+               21,
+               { { { INTMAX_MIN, 500 }, 8 },
+                 { { 500, 1000 }, 3 },
+                 { { 1000, 1500 }, 2 },
+                 { { 1500, 2000 }, 1 },
+                 { { 2000, 2500 }, 2 },
+                 { { 2500, 3000 }, 0 },
+                 { { 3000, 3500 }, 0 },
+                 { { 3500, 4000 }, 0 },
+                 { { 4000, 4500 }, 0 },
+                 { { 4500, 5000 }, 0 },
+                 { { 5000, 5500 }, 0 },
+                 { { 5500, 6000 }, 0 },
+                 { { 6000, 6500 }, 0 },
+                 { { 6500, 7000 }, 0 },
+                 { { 7000, 7500 }, 0 },
+                 { { 7500, 8000 }, 1 },
+                 { { 8000, 8500 }, 3 },
+                 { { 8500, 9000 }, 1 },
+                 { { 9000, 9500 }, 1 },
+                 { { 9500, 10000 }, 1 },
+                 { { 10000, INTMAX_MAX }, 3 },
+               }
+       },
        {
                /* start at 0 */
                (const char *const []){