fix server_test to clear TestCacheIndexHandler

[u5surf]

sorry I added TestCacheIndexHandler to failed following now
on HEAD result:

$ cd server
$ go test -v ./...
=== RUN   TestServiceLoader
--- PASS: TestServiceLoader (0.00s)
=== RUN   TestRequestMetrics
2019/01/13 23:06:21 Entry not found
--- PASS: TestRequestMetrics (0.00s)
    middleware_test.go:46: 2019/01/13 23:06:21 GET request to /api/v1/cache/empty took 180951ns.

=== RUN   TestGetWithNoKey
=== PAUSE TestGetWithNoKey
=== RUN   TestGetWithMissingKey
=== PAUSE TestGetWithMissingKey
=== RUN   TestGetKey
=== PAUSE TestGetKey
=== RUN   TestPutKey
=== PAUSE TestPutKey
=== RUN   TestPutEmptyKey
=== PAUSE TestPutEmptyKey
=== RUN   TestDeleteEmptyKey
=== PAUSE TestDeleteEmptyKey
=== RUN   TestDeleteInvalidKey
=== PAUSE TestDeleteInvalidKey
=== RUN   TestDeleteKey
=== PAUSE TestDeleteKey
=== RUN   TestGetStats
=== PAUSE TestGetStats
=== RUN   TestGetStatsIndex
=== PAUSE TestGetStatsIndex
=== RUN   TestCacheIndexHandler
2019/01/13 23:06:21 stored "putKey" in cache.
2019/01/13 23:06:21 stored "getKey" in cache.
2019/01/13 23:06:21 testDeleteKey not found.
--- FAIL: TestCacheIndexHandler (0.00s)
    server_test.go:236: want: 200; got: 201.
                can't delete keys.
    server_test.go:241: want: 200; got: 201.
                can't delete keys.
    server_test.go:247: want: 200; got: 201.
                can't delete keys.
=== CONT  TestGetWithNoKey
2019/01/13 23:06:21 empty request.
=== CONT  TestDeleteInvalidKey
--- PASS: TestGetWithNoKey (0.00s)
2019/01/13 23:06:21 invalidDeleteKey not found.
=== CONT  TestGetKey
=== CONT  TestGetWithMissingKey
=== CONT  TestDeleteEmptyKey
2019/01/13 23:06:21 Entry not found
--- PASS: TestGetWithMissingKey (0.00s)
=== CONT  TestGetStats
=== CONT  TestPutEmptyKey
2019/01/13 23:06:21  not found.
--- PASS: TestDeleteEmptyKey (0.00s)
=== CONT  TestDeleteKey
--- PASS: TestDeleteInvalidKey (0.00s)
=== CONT  TestGetStatsIndex
--- PASS: TestDeleteKey (0.00s)
=== CONT  TestPutKey
2019/01/13 23:06:21 stored "putKey" in cache.
--- PASS: TestPutKey (0.00s)
2019/01/13 23:06:21 empty request.
--- PASS: TestGetKey (0.00s)
--- PASS: TestPutEmptyKey (0.00s)
--- PASS: TestGetStats (0.00s)
--- PASS: TestGetStatsIndex (0.00s)
FAIL
ok      github.com/allegro/bigcache/server      0.034s

so, I fixed and retest to indicate passing all tests

$ cd server
$ go test -v ./...                                                                                                     
=== RUN   TestServiceLoader
--- PASS: TestServiceLoader (0.00s)
=== RUN   TestRequestMetrics
2019/01/13 23:04:42 Entry not found
--- PASS: TestRequestMetrics (0.00s)
    middleware_test.go:46: 2019/01/13 23:04:42 GET request to /api/v1/cache/empty took 221961ns.

=== RUN   TestGetWithNoKey
=== PAUSE TestGetWithNoKey
=== RUN   TestGetWithMissingKey
=== PAUSE TestGetWithMissingKey
=== RUN   TestGetKey
=== PAUSE TestGetKey
=== RUN   TestPutKey
=== PAUSE TestPutKey
=== RUN   TestPutEmptyKey
=== PAUSE TestPutEmptyKey
=== RUN   TestDeleteEmptyKey
=== PAUSE TestDeleteEmptyKey
=== RUN   TestDeleteInvalidKey
=== PAUSE TestDeleteInvalidKey
=== RUN   TestDeleteKey
=== PAUSE TestDeleteKey
=== RUN   TestGetStats
=== PAUSE TestGetStats
=== RUN   TestGetStatsIndex
=== PAUSE TestGetStatsIndex
=== RUN   TestCacheIndexHandler
2019/01/13 23:04:42 stored "testkey" in cache.
--- PASS: TestCacheIndexHandler (0.00s)
=== CONT  TestGetWithNoKey
2019/01/13 23:04:42 empty request.
--- PASS: TestGetWithNoKey (0.00s)
=== CONT  TestDeleteEmptyKey
2019/01/13 23:04:42  not found.
=== CONT  TestDeleteInvalidKey
--- PASS: TestDeleteEmptyKey (0.00s)
2019/01/13 23:04:42 invalidDeleteKey not found.
=== CONT  TestPutEmptyKey
--- PASS: TestDeleteInvalidKey (0.00s)
=== CONT  TestGetWithMissingKey
2019/01/13 23:04:42 empty request.
2019/01/13 23:04:42 Entry not found
--- PASS: TestGetWithMissingKey (0.00s)
=== CONT  TestGetStatsIndex
--- PASS: TestPutEmptyKey (0.00s)
=== CONT  TestGetKey
--- PASS: TestGetKey (0.00s)
=== CONT  TestGetStats
=== CONT  TestPutKey
2019/01/13 23:04:42 stored "putKey" in cache.
--- PASS: TestPutKey (0.00s)
=== CONT  TestDeleteKey
--- PASS: TestDeleteKey (0.00s)
--- PASS: TestGetStatsIndex (0.00s)
--- PASS: TestGetStats (0.00s)
PASS
ok      github.com/allegro/bigcache/server      0.033s

[coveralls]

Coverage remained the same at 90.34% when pulling a6967d1 on u5surf:fix_server_test into f3acb35 on allegro:master.

[siennathesane]

Ah yeah, this is better. I didn't get a chance to see the first PR since I wasn't notified (my fault), but I'm glad this one fixes it. I do like the testing of the core options.