salesforce测试类文档案例

代码示例

//example
@isTest 
private class myClass { 
@isTest static void myTest() { 
// code_block } 
}

public class TVRemoteControl {
// Volume to be modified
Integer volume;
// Constant for maximum volume value
static final Integer MAX_VOLUME = 50;
// Constructor
public TVRemoteControl(Integer v) {
// Set initial value for volume
volume = v;
}
public Integer increaseVolume(Integer amount) {
volume += amount;
if (volume > MAX_VOLUME) {
volume = MAX_VOLUME;
}
return volume;
}
public Integer decreaseVolume(Integer amount) {
volume -= amount;
if (volume < 0) {
volume = 0;
}
return volume;
}
public static String getMenuOptions() {
return 'AUDIO SETTINGS - VIDEO SETTINGS';
}
}

@isTest
class TVRemoteControlTest {
@isTest static void testVolumeIncrease() {
TVRemoteControl rc = new TVRemoteControl(10);
Integer newVolume = rc.increaseVolume(15);
System.assertEquals(25, newVolume);
}
@isTest static void testVolumeDecrease() {
TVRemoteControl rc = new TVRemoteControl(20);
Integer newVolume = rc.decreaseVolume(15);
System.assertEquals(5, newVolume);
}
@isTest static void testVolumeIncreaseOverMax() {
TVRemoteControl rc = new TVRemoteControl(10);
Integer newVolume = rc.increaseVolume(100);
System.assertEquals(50, newVolume);
}
@isTest static void testVolumeDecreaseUnderMin() {
TVRemoteControl rc = new TVRemoteControl(10);
Integer newVolume = rc.decreaseVolume(100);
System.assertEquals(0, newVolume);
}
@isTest static void testGetMenuOptions() {
// Static method call. No need to create a class instance.
String menu = TVRemoteControl.getMenuOptions();
System.assertNotEquals(null, menu);
System.assertNotEquals('', menu);
}
}