feat: support nested testcase in teststep

testcase.go

@@ -0,0 +1,29 @@
+package httpboomer
+
+func RunTestCase(name string) *TestCase {
+	return &TestCase{
+		Config: TConfig{
+			Name: name,
+		},
+	}
+}
+
+func (tc *TestCase) WithVariables(variables Variables) *TestCase {
+	tc.Config.Variables = variables
+	return tc
+}
+
+func (tc *TestCase) ToStruct() *TStep {
+	return &TStep{
+		TestCase: tc,
+	}
+}
+
+func (tc *TestCase) Run() error {
+	for _, step := range tc.TestSteps {
+		if err := step.Run(); err != nil {
+			return err
+		}
+	}
+	return nil
+}