Add usetesting linter #6892
Description
There is some code clean that could be caught by adding a usetesting linter to .golangci.yml.
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -108,6 +108,9 @@ linters:
# Detects the possibility to use variables/constants from the Go standard library.
- usestdlibvars
+ # Recommends using functions from `testing`
+ - usetesting
+It will cause some linting failures like below that should be fixed as part of the same PR.
internal/jaegerclientenv2otel/envvars_test.go:16:2: os.Setenv() could be replaced by t.Setenv() in TestMapJaegerToOtelEnvVars (usetesting)
os.Setenv("JAEGER_TAGS", "tags")
^
internal/jaegerclientenv2otel/envvars_test.go:17:2: os.Setenv() could be replaced by t.Setenv() in TestMapJaegerToOtelEnvVars (usetesting)
os.Setenv("JAEGER_USER", "user")
^
internal/sampling/samplingstrategy/file/provider_test.go:352:17: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestAutoUpdateStrategyWithFile (usetesting)
tempFile, _ := os.CreateTemp("", "for_go_test_*.json")
^
internal/sampling/samplingstrategy/file/provider_test.go:439:17: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestAutoUpdateStrategyErrors (usetesting)
tempFile, _ := os.CreateTemp("", "for_go_test_*.json")
^
internal/storage/metricstore/prometheus/metricstore/reader_test.go:772:15: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestGetRoundTripperTokenFile (usetesting)
file, err := os.CreateTemp("", "token_")
^
internal/storage/metricstore/prometheus/metricstore/reader_test.go:807:15: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestGetRoundTripperTokenFromContext (usetesting)
file, err := os.CreateTemp("", "token_")
^
internal/storage/v1/elasticsearch/mappings/command_test.go:24:19: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestCommandExecute (usetesting)
tempFile, err := os.CreateTemp("", "command-output-*.txt")
^