有时声纳云会抱怨测试中的断言数量。我想知道如何将断言链接到另一个,但在某些情况下我无法弄清楚如何链接断言。
import java.util.List;
import org.assertj.core.groups.Tuple;
import org.junit.jupiter.api.Test;
import lombok.Builder;
import lombok.Data;
import static org.assertj.core.api.Assertions.assertThat;
class FakeTest
{
@Test
void fakeTest()
{
// given
var resStatus = "FINISHED";
var tc1 = "Test case 1";
var r1 = "GOOD";
var tc2 = "Test case 2";
var r2 = "ALARMING";
var res1 = Response.builder()
.status(resStatus)
.testCaseName(tc1)
.result(r1)
.build();
var res2 = Response.builder()
.status(resStatus)
.testCaseName(tc2)
.result(r2)
.build();
var result = Result.builder()
.responses(List.of(res1, res2))
.value("PASSED")
.build();
// then
assertThat(result)
.returns("PASSED", Result::getValue);
assertThat(result.getResponses())
.extracting("status", "testCaseName", "result")
.contains(
Tuple.tuple(resStatus, tc1, r1),
Tuple.tuple(resStatus, tc1, r2));
}
}
@Data
@Builder
class Result
{
private String value;
private List<Response> responses;
}
@Data
@Builder
class Response
{
private String status;
private String testCaseName;
private String result;
private String error;
}
我如何在 FakeTest#fakeTest 中进行断言,将它们链接起来,而不是分成两个断言(一个用于assertThat(result).returns(...),然后用于assertThat(result.getResponses()).extracting(...) ...)
我想要达到的目标是:
assertThat(result)
.returns("PASSED", Result::getValue)
.extracting(Result::getResponses) // connection between two assertThat(...)
.extracting("status", "testCaseName", "result")
.contains(
Tuple.tuple(resStatus, tc1, r1),
Tuple.tuple(resStatus, tc1, r2));
我发现返回的断言对象是不同的:
extracting(singleParam or lambda)
无法返回特定于提取的值类型的断言,在这种情况下,可以使用 asInstanceOf 告知 AssertJ 类型,如下所示:
static import org.assertj.core.api.InstanceOfAssertFactories.LIST;
assertThat(result)
.returns("PASSED", Result::getValue)
.extracting(Result::getResponses).asInstanceOf(LIST) // static import for readability
.extracting("status", "testCaseName", "result")
.contains(
Tuple.tuple(resStatus, tc1, r1),
Tuple.tuple(resStatus, tc1, r2));
InstanceOfAssertFactories 提供 AssertJ 支持断言的类型。
另一种选择是传递一个直接提取响应及其字段的 lambda(但这可能工作量太大)。