You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: TutorialExample_test.go
    path of file: ./repos/grule-rule-engine/examples
    
    the code of the file until where you have to start completion: //  Copyright hyperjumptech/grule-rule-engine Authors
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use t
    
func TestTutorial(t *testing.T) {
	myFact := &MyFact{
		IntAttribute:     123,
		StringAttribute:  "Some string value",
		BooleanAttribute: true,
		FloatAttribute:   1.234,
		TimeAttribute:    time.Now(),
	}
	dataCtx := ast.NewDataContext()
	err := dataCtx.Add("MF", myFact)
	assert.NoError(t, err)

	// Prepare knowledgebase library and load it with our rule.
	knowledgeLibrary := ast.NewKnowledgeLibrary()
	ruleBuilder := builder.NewRuleBuilder(knowledgeLibrary)

	drls := `
rule CheckValues "Check the default values" salience 10 {
    when 
        MF.IntAttribute == 123 && MF.StringAttribute == "Some string value"
    then
        MF.WhatToSay = MF.GetWhatToSay("Hello Grule");
		Retract("CheckValues");
}
`
	byteArr := pkg.NewBytesResource([]byte(drls))
	err = ruleBuilder.BuildRuleFromResource("Tutorial", "0.0.1", byteArr)
	assert.NoError(t, err)

	knowledgeBase, err := knowledgeLibrary.NewKnowledgeBaseInstance("Tutorial", "0.0.1")
	assert.NoError(t, err)

	engine := engine.NewGruleEngine()
	err = engine.Execute(dataCtx, knowledgeBase)
	assert.NoError(t, err)
	assert.Equal(t, "Let say \"Hello Grule\"", myFact.WhatToSay)
	println(myFact.WhatToSay)
}