linter/src/test/java/org/apache/royale/linter/rules/TestMaxParametersRule.java

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package org.apache.royale.linter.rules;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.List;

import org.apache.royale.compiler.problems.ICompilerProblem;
import org.apache.royale.linter.ASLinter;
import org.apache.royale.linter.LinterRule;
import org.apache.royale.linter.LinterSettings;
import org.junit.Test;

public class TestMaxParametersRule {
	@Test
	public void testZeroParameters() {
		List<LinterRule> rules = new ArrayList<LinterRule>();
		MaxParametersRule rule = new MaxParametersRule();
		rule.maximum = 2;
		rules.add(rule);
		LinterSettings settings = new LinterSettings();
		settings.rules = rules;
		ASLinter linter = new ASLinter(settings);
		List<ICompilerProblem> problems = new ArrayList<ICompilerProblem>();
		linter.lint("file.as", "function myFunction():void {}", problems);
		assertEquals(0, problems.size());
	}

	@Test
	public void testLessThanMaxParameter() {
		List<LinterRule> rules = new ArrayList<LinterRule>();
		MaxParametersRule rule = new MaxParametersRule();
		rule.maximum = 2;
		rules.add(rule);
		LinterSettings settings = new LinterSettings();
		settings.rules = rules;
		ASLinter linter = new ASLinter(settings);
		List<ICompilerProblem> problems = new ArrayList<ICompilerProblem>();
		linter.lint("file.as", "function myFunction(param1:String):void {}", problems);
		assertEquals(0, problems.size());
	}

	@Test
	public void testEqualToMaxParameters() {
		List<LinterRule> rules = new ArrayList<LinterRule>();
		MaxParametersRule rule = new MaxParametersRule();
		rule.maximum = 2;
		rules.add(rule);
		LinterSettings settings = new LinterSettings();
		settings.rules = rules;
		ASLinter linter = new ASLinter(settings);
		List<ICompilerProblem> problems = new ArrayList<ICompilerProblem>();
		linter.lint("file.as", "function myFunction(param1:String, param2:Number):void {}", problems);
		assertEquals(0, problems.size());
	}

	@Test
	public void testMoreThanMaxParameters() {
		List<LinterRule> rules = new ArrayList<LinterRule>();
		MaxParametersRule rule = new MaxParametersRule();
		rule.maximum = 2;
		rules.add(rule);
		LinterSettings settings = new LinterSettings();
		settings.rules = rules;
		ASLinter linter = new ASLinter(settings);
		List<ICompilerProblem> problems = new ArrayList<ICompilerProblem>();
		linter.lint("file.as", "function myFunction(param1:String, param2:Number, param3:Boolean):void {}", problems);
		assertEquals(1, problems.size());
		assertTrue(problems.get(0) instanceof MaxParametersRule.MaxParametersLinterProblem);
	}
}