System.Assert と System.AssertEquals の違い

System.assert と System.assertEquals を使用して、異常系のサンプルテストクラス (Sample Test Class) でテストを行いましょう。

static testMethod void runNegativeTestCases(){
	User u3 = [select id from User where alias='tuser'];     
	System.RunAs(u3)
	{
		System.debug('Inserting a record with 501 miles... (negative test case)');

		Mileage__c testMiles3 = new Mileage__c( Miles__c = 501, Date__c = System.today() );
		try{

			insert testMiles3;

		}catch (DmlException e){

			//Assert Error Message 

			System.assert( e.getMessage().contains('Insert failed. First exception on ' +'row 0; first error:FIELD_CUSTOM_VALIDATION_EXCEPTION,'+'Mileage request exceeds daily limit(500): [Miles__c]'),e.getMessage() );

			//Assert field 

			System.assertEquals(Mileage__c.Miles__c, e.getDmlFields(0)[0]);

			//Assert Status Code 

			System.assertEquals('FIELD_CUSTOM_VALIDATION_EXCEPTION' , e.getDmlStatusCode(0) );

		} //catch 

} //RunAs(u3)