📄 testdataconversion.java
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import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import junit.framework.TestResult;
import junit.framework.TestFailure;
/**
* sample code testing String->Integer conversion
*
*/
public class TestDataConversion extends TestCase {
DataConversion aDC;
public static void main (String[] args) {
TestDataConversion tdc = new TestDataConversion();
tdc.run();
// 这段演示如何使用TestResult
// TestResult result = new TestResult();
// tdc.run(result);
// if (!result.wasSuccessful()) {
// while (result.failures().hasMoreElements()) {
// TestFailure tf = (TestFailure)tdc.run().failures().nextElement();
// System.out.println(tf.toString());
// return;
// }
// }
// 这段用文本方式运行该测试
// junit.textui.TestRunner.run (TestDataConversion.class);
// 这段用图形方式运行该测试
// junit.awtui.TestRunner.run(TestDataConversion.class);
}
public TestDataConversion()
{
super();
}
public TestDataConversion(String fname)
{
super(fname);
}
protected void setUp() {
System.out.println("set up");
aDC = new DataConversion();
}
protected void tearDown() {
System.out.println("tear down");
aDC = null;
}
public static Test suite() {
return new TestSuite(TestDataConversion.class);
}
public void testNumbers() {
assertTrue(1==aDC.atoi("1"));
assertTrue(-1==aDC.atoi("-1"));
assertTrue(1==aDC.atoi("+1"));
assertTrue(0==aDC.atoi("0"));
assertTrue(0==aDC.atoi("-0"));
assertTrue(1==aDC.atoi("1.2"));
assertTrue(2==aDC.atoi("2-3"));
assertTrue(299==aDC.atoi("299.3a"));
assertTrue(0==aDC.atoi("abc"));
assertTrue(0==aDC.atoi("a123"));
assertTrue(0==aDC.atoi(""));
assertTrue(0==aDC.atoi(" "));
// assertEquals(214748, aDC.atoi("214748"));
//
// System.out.println("max integer is "+Integer.MAX_VALUE);
// System.out.println("min integer is "+Integer.MIN_VALUE);
//
//
// assertEquals(2147483647, aDC.atoi("2147483647"));
// //assertEquals(2147483648l, aDC.atoi("2147483648"));
// assertEquals(-2147483647,aDC.atoi("-2147483647"));
// assertEquals(-2147483648l,aDC.atoi("-2147483648"));
}
public void testBigNumbers() {
assertEquals(214748, aDC.atoi("214748"));
System.out.println("max integer is "+Integer.MAX_VALUE);
System.out.println("min integer is "+Integer.MIN_VALUE);
assertEquals(2147483647, aDC.atoi("2147483647"));
assertEquals(2147483648l, aDC.atoi("2147483648"));
assertEquals(-2147483647,aDC.atoi("-2147483647"));
assertEquals(-2147483648l,aDC.atoi("-2147483648"));
}
}
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