big-r81 opened a new issue, #5386:
URL: https://github.com/apache/couchdb/issues/5386
[NOTE]: # ( ^^ Provide a general summary of the issue in the title above. ^^
)
## Description
When running the Elixir test `UUIDsTest`, there is the following warnings
are issued:
```bash
UUIDsTest [test/elixir/test/uuids_test.exs]
* test no duplicates in 1,000 UUIDs (198.1ms) [L#29]
* test sequential uuids are sequential (59.6ms) [L#50]
* test utc_random uuids are roughly random (44.5ms) [L#64]
* test Bad Request error when exceeding max UUID count (10.3ms) [L#42]
* test cache busting headers are set (9.5ms) [L#9]
* test utc_id uuids are correct [L#85]warning: negative steps are not
supported in String.slice/2, pass 14..-1//1 instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
warning: negative steps are not supported in String.slice/2, pass 14..-1//1
instead
(elixir 1.17.3) lib/string.ex:2404: String.slice/2
test/elixir/test/uuids_test.exs:91: anonymous fn/2 in UUIDsTest."test
utc_id uuids are correct"/1
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/2-lists^foldl/2-1-"/3
test/elixir/test/uuids_test.exs:89: UUIDsTest."test utc_id uuids are
correct"/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
(stdlib 4.3.1.5) timer.erl:235: :timer.tc/1
(ex_unit 1.17.3) lib/ex_unit/runner.ex:407: anonymous fn/6 in
ExUnit.Runner.spawn_test_monitor/4
* test utc_id uuids are correct (43.0ms) [L#85]
* test can return single uuid (27.5ms) [L#17]
* test Method Not Allowed error on POST (9.5ms) [L#37]
```
## Steps to Reproduce
`make elixir tests=test/elixir/test/uuids_test.exs`
## Expected Behaviour
[NOTE]: # ( Tell us what you expected to happen. )
Should run without warnings.
## Your Environment
[TIP]: # ( Include as many relevant details about your environment as
possible. )
[TIP]: # ( You can paste the output of curl http://YOUR-COUCHDB:5984/ here.
)
* CouchDB version: main
* Elixir version used: 1.17.3
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