Move example hooks helper methods to their own file

spec/example_hooks_spec.cr

@@ -1,32 +1,5 @@
 require "./spec_helper"
 
-def new_hooks(
-  before_all = [] of ->,
-  before_each = [] of ->,
-  after_all = [] of ->,
-  after_each = [] of ->,
-  around_each = [] of Proc(Nil) ->
-)
-  Spectator::ExampleHooks.new(before_all, before_each,
-    after_all, after_each, around_each)
-end
-
-def new_hooks(
-  before_all : Proc(Nil)? = nil,
-  before_each : Proc(Nil)? = nil,
-  after_all : Proc(Nil)? = nil,
-  after_each : Proc(Nil)? = nil,
-  around_each : Proc(Proc(Nil), Nil)? = nil
-)
-  new_hooks(
-    before_all ? [before_all] : [] of ->,
-    before_each ? [before_each] : [] of ->,
-    after_all ? [after_all] : [] of ->,
-    after_each ? [after_each] : [] of ->,
-    around_each ? [around_each] : [] of Proc(Nil) ->
-  )
-end
-
 describe Spectator::ExampleHooks do
   {% for hook in %i[before_all before_each after_all after_each] %}
     describe "#run_{{hook.id}}" do

spec/helpers/example_hooks_helper.cr

@@ -0,0 +1,34 @@
+# Creates a new `Spectator::ExampleHooks` instance.
+# All arguments are optional,
+# only specify the sets of hooks that are needed.
+# The hooks that aren't specified will be left empty.
+def new_hooks(
+  before_all = [] of ->,
+  before_each = [] of ->,
+  after_all = [] of ->,
+  after_each = [] of ->,
+  around_each = [] of Proc(Nil) ->
+)
+  Spectator::ExampleHooks.new(before_all, before_each,
+    after_all, after_each, around_each)
+end
+
+# Creates a new `Spectator::ExampleHooks` instance.
+# All arguments are optional,
+# only specify a hook for the types that are needed.
+# The hooks that aren't specified will be left empty.
+def new_hooks(
+  before_all : Proc(Nil)? = nil,
+  before_each : Proc(Nil)? = nil,
+  after_all : Proc(Nil)? = nil,
+  after_each : Proc(Nil)? = nil,
+  around_each : Proc(Proc(Nil), Nil)? = nil
+)
+  new_hooks(
+    before_all ? [before_all] : [] of ->,
+    before_each ? [before_each] : [] of ->,
+    after_all ? [after_all] : [] of ->,
+    after_each ? [after_each] : [] of ->,
+    around_each ? [around_each] : [] of Proc(Nil) ->
+  )
+end