/testability-explorer/src/test/java/com/google/test/metric/method/MethodCostTest.java

 1/*
 2 * Copyright 2007 Google Inc.
 3 *
 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 5 * use this file except in compliance with the License. You may obtain a copy of
 6 * the License at
 7 *
 8 * http://www.apache.org/licenses/LICENSE-2.0
 9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16package com.google.test.metric.method;
17
18import com.google.test.metric.ClassCost;
19import com.google.test.metric.Cost;
20import com.google.test.metric.CostModel;
21import com.google.test.metric.CyclomaticCost;
22import com.google.test.metric.GlobalCost;
23import com.google.test.metric.JavaClassRepository;
24import com.google.test.metric.MethodCost;
25import com.google.test.metric.MethodInvocationCost;
26import com.google.test.metric.MetricComputer;
27import static com.google.test.metric.Reason.IMPLICIT_STATIC_INIT;
28import com.google.test.metric.RegExpWhiteList;
29import com.google.test.metric.SourceLocation;
30
31import junit.framework.TestCase;
32
33public class MethodCostTest extends TestCase {
34
35  public void testComputeOverallCost() throws Exception {
36    MethodCost cost = new MethodCost("", "a", 0, false, false, false);
37    cost.addCostSource(new CyclomaticCost(new SourceLocation(null, 0), Cost.cyclomatic(1)));
38    cost.addCostSource(new GlobalCost(new SourceLocation(null, 0), null, Cost.global(1)));
39    MethodCost cost3 = new MethodCost("", "b", 0, false, false, false);
40    cost3.addCostSource(new CyclomaticCost(new SourceLocation(null, 0), Cost.cyclomatic(1)));
41    cost3.addCostSource(new CyclomaticCost(new SourceLocation(null, 0), Cost.cyclomatic(1)));
42    cost3.addCostSource(new CyclomaticCost(new SourceLocation(null, 0), Cost.cyclomatic(1)));
43    cost.addCostSource(new MethodInvocationCost(new SourceLocation(null, 0), cost3,
44        IMPLICIT_STATIC_INIT, Cost.cyclomatic(3)));
45    CostModel costModel = new CostModel(2, 10, 1);
46    cost.link();
47
48    assertEquals((long) 2 * (3 + 1) + 10 * 1, costModel.computeOverall(cost.getTotalCost()));
49    assertEquals(2, cost.getExplicitViolationCosts().size());
50    assertEquals(1, cost.getImplicitViolationCosts().size());
51  }
52
53  private static class Setters {
54    boolean foo;
55    public void setFoo(String foo) {
56      this.foo = (foo == null);
57    }
58  }
59
60  public void testImplicitSetterCostShouldNotBeDoubleCounted() throws Exception {
61    MetricComputer computer = new MetricComputer(new JavaClassRepository(), null, new RegExpWhiteList(), 1);
62    ClassCost cost = computer.compute(Setters.class.getCanonicalName());
63    MethodCost cost1 = cost.getMethodCost("void setFoo(java.lang.String)");
64    assertEquals(1, cost1.getTotalCost().getCyclomaticComplexityCost());
65  }
66}