Tests are failing when actual redis server is used

[yashmehrotra]

I was porting this module to get it working with github.com/gomodule/redigo. After running the tests, a few of them were failing. It was surprising since I did not change any logical code.

I then ran these tests with a live redis server instead and noticed that the same tests are failing.

Here is the diff if you want to test this yourself

 func rateLimiter() *redis_rate.Limiter {
-	ring := redis.NewRing(&redis.RingOptions{
-		Addrs: map[string]string{"server0": ":6379"},
-	})
-	if err := ring.FlushDB(context.TODO()).Err(); err != nil {
-		panic(err)
-	}
-	return redis_rate.NewLimiter(ring)
+	client := redis.NewClient(&redis.Options{Addr: "localhost:6379"})
+	return redis_rate.NewLimiter(client)
 }
 
 func TestAllow(t *testing.T) {

The below tests are failing:

go test ./...
--- FAIL: TestAllowN_IncrementZero (0.00s)
    rate_test.go:82: 
        	Error Trace:	rate_test.go:82
        	Error:      	Not equal: 
        	            	expected: 0
        	            	actual  : 10
        	Test:       	TestAllowN_IncrementZero
--- FAIL: TestRetryAfter (0.00s)
    assertion_compare.go:240: 
        	Error Trace:	rate_test.go:121
        	Error:      	"998632997" is not less than or equal to "1000000"
        	Test:       	TestRetryAfter
        	Messages:   	[]
--- FAIL: TestAllowAtMost (0.00s)
    rate_test.go:133: 
        	Error Trace:	rate_test.go:133
        	Error:      	Not equal: 
        	            	expected: 0
        	            	actual  : 1
        	Test:       	TestAllowAtMost
--- FAIL: TestAllowAtMost_IncrementZero (0.00s)
    rate_test.go:190: 
        	Error Trace:	rate_test.go:190
        	Error:      	Not equal: 
        	            	expected: 0
        	            	actual  : 10
        	Test:       	TestAllowAtMost_IncrementZero
FAIL
FAIL	github.com/go-redis/redis_rate/v9	0.007s
FAIL