Move TestMain into testhelper_test.go

Our style guide states that the `TestMain` function should be placed in
a file named `testhelper_test.go` for consistency's sake. A number of
packages were placing the test in a standard test file.

In cases where `TestMain` was the only function in that file rename it
to `testhelper_test.go`. If there were other functions, relocate
`TestMain` into a new `testhelper_test.go` file.

2 files changed, 13 insertions, 4 deletions

diff --git a/internal/cgroups/cgroups_linux_test.go b/internal/cgroups/cgroups_linux_test.go
index 028d4bcd7..9abcf8cb4 100644
--- a/internal/cgroups/cgroups_linux_test.go
+++ b/internal/cgroups/cgroups_linux_test.go
@@ -10,10 +10,6 @@ import (
 	"gitlab.com/gitlab-org/gitaly/v16/internal/testhelper"
 )
 
-func TestMain(m *testing.M) {
-	testhelper.Run(m)
-}
-
 func TestNewManager(t *testing.T) {
 	require.IsType(t, &NoopManager{}, NewManager(cgroups.Config{}, testhelper.NewDiscardingLogEntry(t), 1))
 }
diff --git a/internal/cgroups/testhelper_test.go b/internal/cgroups/testhelper_test.go
new file mode 100644
index 000000000..5f594195a
--- /dev/null
+++ b/internal/cgroups/testhelper_test.go
@@ -0,0 +1,13 @@
+//go:build linux
+
+package cgroups
+
+import (
+	"testing"
+
+	"gitlab.com/gitlab-org/gitaly/v16/internal/testhelper"
+)
+
+func TestMain(m *testing.M) {
+	testhelper.Run(m)
+}