簡單的Java單元測試架構__Java

稱為架構有點言過其實，主要方便使用sublime開發java時做單元測試。 TestCase.java

import java.util.*;import java.lang.reflect.Method;import java.lang.reflect.Modifier;public abstract class TestCase {    /*    判斷實際結果與期望是否相等，並返回判定結果與運行位置資訊    @ actual 實際結果    @ expect 期望結果    傳回值：檢查結果的字串    備忘：同時緩衝檢查結果    */    public String assertEqual(Object actual, Object expect) {        Throwable ex = new Throwable();        StackTraceElement[] stackElements = ex.getStackTrace();        TestResult r = new TestResult(            actual.equals(expect),            stackElements[1].getFileName(),            stackElements[1].getLineNumber());        this.results.add(r);        String s = String.format("%s, line %d, %s", r.fileName, r.line, actual.equals(expect) ? "SUCCESS" : "FAILED");        System.out.println(s);        return s;    }    public ArrayList < TestResult > results = new ArrayList < TestResult > ();    /*    unitTest 執行用例的所有測試方法並輸出統計結果    傳回值: 統計結果字串    */    public String unitTest() {        results = new ArrayList < TestResult > ();        // 遍曆case對象所有開頭為test的public方法        Class < ? > cls = this.getClass();        Method[] methods = cls.getDeclaredMethods();        for (Method m: methods) {            if (m.getName().startsWith("test")) {                // 動態調用test方法                try {                    m.invoke(this);                } catch (Exception e) {}            }        }        // 統計失敗的檢查項        int failed = 0;        for (TestResult tr: this.results) {            if (!tr.Result) {                failed += 1;            }        }        String s = String.format("Tests: %d, Failed: %d", this.results.size(), failed);        System.out.println(s);        return s;    }    public static void main(String[] args) {        TestCaseEx c = new TestCaseEx();        String s = c.assertEqual(1, 1);        TestResult r = new TestResult(true, "TestCase.java", 61);        ArrayList < TestResult > rs = new ArrayList < TestResult > ();        rs.add(r);        assert s.equals("TestCase.java, line 61, SUCCESS");        assert c.results.equals(rs);        Class < ? > cls = c.getClass();        assert cls.getName().equals("TestCaseEx");        //測試取得類方法          Method[] methods = cls.getDeclaredMethods();        for (Method m: methods) {            if (m.getName().equals("foo")) {                try {                    assert(int) m.invoke(c) == 100;                } catch (Exception e) {}            }        }        s = c.unitTest();        rs = new ArrayList < TestResult > ();        r = new TestResult(true, "TestCase.java", 98);        rs.add(r);        r = new TestResult(false, "TestCase.java", 102);        rs.add(r);        assert s.equals("Tests: 2, Failed: 1");        assert c.results.equals(rs);    }}class TestCaseEx extends TestCase {    public void testFoo() {        this.assertEqual(1, 1);    }    public void testFoo2() {        this.assertEqual(1, 0);    }    public int foo() {        return 100;    }}

TestResult.java

public class TestResult {    public TestResult(boolean ret, String fileName, int line) {        this.Result = ret;        this.fileName = fileName;        this.line = line;    }    public boolean Result; // 測試結果    public String fileName; // 測試類別名    public int line; // assertEqual語句所在測試函數的調用位置    public static void main(String[] args) {        TestResult tr = new TestResult(true, "tt", 100);        assert tr.Result;        assert tr.fileName == "tt";        assert tr.line == 100;        TestResult tr2 = new TestResult(true, "tt", 100);        assert tr.equals(tr2);    }    public boolean equals(Object o) {        if (!(o instanceof TestResult)) {            return false;        }        TestResult tr = (TestResult) o;        return this.Result == tr.Result && this.fileName == tr.fileName && this.line == tr.line;    }}

使用代碼

public class demo {    public static void main(String[] args) {        TestString t = new TestString();        t.unitTest();    }}class TestString extends TestCase {    public void testStringFunc() {        String s = "abc";        this.assertEqual(s.startsWith("a"), true);        this.assertEqual(s.indexOf("b"), 1);    }}

輸出結果：

demo.java, line 11, SUCCESSdemo.java, line 12, SUCCESSTests: 2, Failed: 0[Finished in 1.8s]