feat: support setup/teardown hooks

Change-Id: I148e11c190859b57dd5268cfe5643762e43bd64a

examples/demo.json

@@ -34,8 +34,15 @@
 			"variables": {
 				"b": 34.5,
 				"n": 3,
+				"name": "get with params",
 				"varFoo2": "${max($a, $b)}"
 			},
+			"setup_hooks": [
+				"${setup_hook_example($name)}"
+			],
+			"teardown_hooks": [
+				"${teardown_hook_example($name)}"
+			],
 			"extract": {
 				"varFoo1": "body.args.foo1"
 			},

examples/demo.yaml

@@ -24,7 +24,12 @@ teststeps:
       variables:
         b: 34.5
         "n": 3
+        name: get with params
         varFoo2: ${max($a, $b)}
+      setup_hooks:
+        - ${setup_hook_example($name)}
+      teardown_hooks:
+        - ${teardown_hook_example($name)}
       extract:
         varFoo1: body.args.foo1
       validate:

examples/plugin/debugtalk.go

@@ -55,3 +55,11 @@ func Concatenate(args ...interface{}) (interface{}, error) {
 	}
 	return result, nil
 }
+
+func SetupHookExample(args string) string {
+	return fmt.Sprintf("step name: %v, setup...", args)
+}
+
+func TeardownHookExample(args string) string {
+	return fmt.Sprintf("step name: %v, teardown...", args)
+}

examples/plugin/hashicorp.go

@@ -10,5 +10,7 @@ func main() {
 	plugin.Register("sum_two_string", SumTwoString)
 	plugin.Register("sum_strings", SumStrings)
 	plugin.Register("concatenate", Concatenate)
+	plugin.Register("setup_hook_example", SetupHookExample)
+	plugin.Register("teardown_hook_example", TeardownHookExample)
 	plugin.Serve()
 }