当我使用时@InjectMocks，发生了异常。我的代码如下所示：
class A {
private X x;
private Y y;
public A(String ip, int port) {
this(someMethodCall(ip, port)); //
}
private A(X x) {
this.x = x;
this.y = new Y();
}
}
UT:
public class ATest() {
@InjectMocks A a;
@Mock X x;
@Mock Y y;
@Test ...
}
它会抛出 NPE，有人可以帮助我吗？
org.mockito.exceptions.base.MockitoException: Cannot instantiate @InjectMocks field named 'channel' of type 'class Juinit3.Channel'. You haven't provided the instance at field declaration so I tried to construct the instance. …
我正在学习 Bazel 并且对许多基本概念感到困惑。
load("//bazel/rules:build_tools.bzl", "build_tools_deps")
build_tools_deps() //build_tools_deps is macro or rules?
load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
gazelle_dependencies() //what about the @ mean exactly? where is the bazel_gazelle ?
native.new_git_repository(...) //what about the native mean?
什么定义称为函数？什么定义是规则？
我得到一个响应主体。正文的格式如下：
[
{
"id":1,
"name":"111"
},
{
"id":2,
"name":"222"
}
]
我想将正文解析为 json 结构，我的代码如下：
type Info struct {
Id uint32 `json:id`
Name string `json:name`
}
type Response struct {
infos []Info
}
v := &Response{}
data, err := ioutil.ReadAll(response.Body)
if err := json.Unmarshal(data, v); err != nil {
log.Fatalf("Parse response failed, reason: %v \n", err)
}
它总是报错：cannot unmarshal array into Go value of type xxx，有人可以帮忙吗？
package main
/*
int add(int a, int b) {
return a + b;
}
*/
import "C"
import "fmt"
func main() {}
func Test1() {
fmt.Println(C.add(1, 3))
}
//export Test2
func Test2() {
}
编译程序：
dingrui@dingrui-PC:~/Projects/gotest/array$ go build -o libtest.so -buildmode=c-shared main.go
# command-line-arguments
/tmp/go-build043762604/b001/_x002.o: In function `add':
./main.go:5: multiple definition of `add'
/tmp/go-build043762604/b001/_x001.o:/tmp/go-build/main.go:5: first defined here
collect2: error: ld returned 1 exit status
如果我删除“//export Test2”行，它就会成功编译。