tests: Recreate cluster for every failpoint trigger

This shortens operation history and avoids having to many failed requests.
Failed requests are problematic as too many of them can cause linearizability
verification complexity to become exponential.

Signed-off-by: Marek Siarkowicz <siarkowicz@google.com>

tests/linearizability/linearizability_test.go

@@ -74,20 +74,22 @@ func TestLinearizability(t *testing.T) {
 		},
 	}
 	for _, tc := range tcs {
-		t.Run(tc.name, func(t *testing.T) {
-			failpoint := FailpointConfig{
-				failpoint:           tc.failpoint,
-				count:               failpointTriggersCount,
-				waitBetweenTriggers: waitBetweenFailpointTriggers,
-			}
-			traffic := trafficConfig{
-				minimalQPS:  minimalQPS,
-				maximalQPS:  maximalQPS,
-				clientCount: 8,
-				traffic:     DefaultTraffic,
-			}
-			testLinearizability(context.Background(), t, tc.config, failpoint, traffic)
-		})
+		for i := 0; i < failpointTriggersCount; i++ {
+			t.Run(tc.name, func(t *testing.T) {
+				failpoint := FailpointConfig{
+					failpoint:           tc.failpoint,
+					count:               1,
+					waitBetweenTriggers: waitBetweenFailpointTriggers,
+				}
+				traffic := trafficConfig{
+					minimalQPS:  minimalQPS,
+					maximalQPS:  maximalQPS,
+					clientCount: 8,
+					traffic:     DefaultTraffic,
+				}
+				testLinearizability(context.Background(), t, tc.config, failpoint, traffic)
+			})
+		}
 	}
 }