如何在此代码中修复此错误
当我运行jUnit测试时，我在testSetName上出错了，为什么会这样？ 因为测试是看是否名称是ferndown，那就是它设置为什么，为什么错误呢？ 我认为jUnit正在测试分支名称是否准确且看起来是否准确，那为什么它会显示测试失败？
@Test public void testSetName() { branch2.setName("Ferndown"); assertEquals("Ferndown", branch2.getName()); } 分行代码：
package prog2.as1; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashSet; import java.util.List; import java.util.Set; public class Branch implements Comparable { public static enum SortOrder implements Comparator { /** * Sort ordered by the name of the customer */ SORTNAME { @Override public int compare(final Customer o1, final Customer o2) { return o1.compareTo(o2); } }, /** * Sort ordered by the first found current account number of the * customer. */ SORTCURRENT { @Override public int compare(final Customer o1, final Customer o2) { Account a1 = null; for (Account a : o1.getAccounts()) { if (a instanceof CurrentAccount) { a1 = a; break; } } Account a2 = null; for (Account a : o2.getAccounts()) { if (a instanceof CurrentAccount) { a2 = a; break; } } if (a1 == null) { if (a2 == null) { return 0; } return -1; } if (a2 == null) { return 1; } return a2.getAccountNumber().compareTo(a1.getAccountNumber()); } }; } private String name; private Address address; private PhoneNumber phoneNumber; private Person bankManager; private final Set customers; /** * Create a new branch object. * * @param name The name of the branch. * @param address The address of the branch. * @param phoneNumber The phone number of the branch. * @param bankManager The manager of the branch. This can be any person, * including a {@link Customer} instance. */ public Branch(final String name, final Address address, final PhoneNumber phoneNumber, final Person bankManager) { this.name = name; this.address = address; this.phoneNumber = phoneNumber; this.bankManager = bankManager; this.customers = new HashSet(); } /** * Get the name of the branch. * * @return The name. */ public String getName() { return name; } /** * Set the name of the branch. * * @param name The new name of the branch. */ public void setName(final String name) { this.name = name; } /** * Get the address of the branch. * * @return The address. */ public Address getAddress() { return address; } /** * Set the address of the branch. * * @param address The new address. */ public void setAddress(final Address address) { this.address = address; } /** * Get the phone number of the branch. * * @return The phone number. */ public PhoneNumber getPhoneNumber() { return phoneNumber; } /** * Set the phone number of the branch. * * @param phoneNumber The new phone number. */ public void setPhoneNumber(final PhoneNumber phoneNumber) { this.phoneNumber = phoneNumber; } /** * Get the manager of the branch. * * @return The manager. */ public Person getBankManager() { return bankManager; } /** * Set the manager of the branch. * * @param bankManager The manager. */ public void setBankManager(final Person bankManager) { this.bankManager = bankManager; } /** * Get a set with all customers of the branch. This set is editable to allow * updating of the customer list. * * @return A {@link Set} with the customers. */ public Set getCustomers() { return customers; } /** * {@inheritDoc} */ @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((address == null) ? 0 : address.hashCode()); result = prime * result + ((bankManager == null) ? 0 : bankManager.hashCode()); result = prime * result + ((name == null) ? 0 : name.hashCode()); result = prime * result + ((phoneNumber == null) ? 0 : phoneNumber.hashCode()); return result; } /** * Compare this branch to another branch. First sorted by name * (lexicographically), then by phone number, and finally by manager. */ @Override public int compareTo(final Branch o) { int result = name.compareTo(o.name); if (result == 0) { result = phoneNumber.compareTo(o.phoneNumber); if (result == 0) { result = bankManager.compareTo(o.bankManager); } } return result; } /** * {@inheritDoc} */ @Override public String toString() { StringBuilder builder = new StringBuilder(); builder.append("Branch [name="); builder.append(name); builder.append(", address="); builder.append(address.getHouseNumber()).append(' ').append(address.getStreetname()); builder.append(", phoneNumber="); builder.append(phoneNumber); builder.append(", bankManager="); builder.append(bankManager.getName()); builder.append("]"); return builder.toString(); } /** * Get a sorted list of customers. This list is constructed on demand, and * list modification does not result into modification of actual recorded * set of customers of the branch. * * @param sortorder The sorting order for the results. Expects * {@link SortOrder}, but other comparators work. * @return A newly allocated list initialised with the customers of the * branch, then sorted in the requested order. */ public List getSortedCustomers(final Comparator sortorder) { List result = new ArrayList(customers); Collections.sort(result, sortorder); return result; }
}
堆栈跟踪：
java.lang.NumberFormatException: The string "128852690292106" does not have the proper length of a card number at prog2.as1.CardNumber.(CardNumber.java:19) at prog2.as1.BankCard.getNextCardNumber(BankCard.java:68) at prog2.as1.BankCard.(BankCard.java:54) at prog2.as1.CurrentAccount.(CurrentAccount.java:95) at prog2.as1.test.BankCommon.setUp(BankCommon.java:58) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
您的unit testing在测试类BankCommon的setUp方法中失败，因为用于在CurrentAccount创建测试BankCard的数字太长或太短。 就testSetName ，它与方法testSetName无关。