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OkHttp InterceptorのUnitTest

Last updated at Posted at 2020-09-04

リクエスト時にあるHeaderを付与するSampleInterceptor()を書いた場合、OkHttpのMockWebServerを使って次のようにテストを書ける。

@RunWith(AndroidJUnit4::class)
class SampleInterceptorTest {

    @get:Rule
    val server: MockWebServer = MockWebServer()

    @Before
    fun init() {
        server.enqueue(MockResponse())
    }

    @Test
    fun test() {
        val client: OkHttpClient = OkHttpClient().newBuilder()
            .addInterceptor(SampleInterceptor())
            .build()
        val response = client.newCall(Request.Builder().url(server.url("/")).build()).execute()

        response.request().run {
            Truth.assertThat(header("HEADER_NAME")).isNotNull()
        }
    }
}

これだけでMockWebServerのstartとshutdownをやってくれるの便利。

@get:Rule
val server: MockWebServer = MockWebServer()

OkHttp Authenticatorのテスト

OkHttp Authenticatorでのtokenの更新処理とUnitTestについても書いた。

参考

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