IntelliJ-IDEAGradle：入門麻煩（遵循JetBrain的教程）

我正在 IntelliJ-IDEA 中撰寫關于 Gradle 的 JetBrains 教程，并且在完成“Gradle 入門第 3 步。使用 Gradle 運行應用程式”之后，我被困在第 4 步。教程說“在編輯器的左邊欄點擊 ?”；沒看到?。相反，檔案 ( FizzBuzzTest.java) 有 11 個錯誤和 16 個警告，以“無法決議符號‘斷言’ ”開頭。檔案名帶有紅色波浪下劃線。所以我嘗試從 Gradle 的test任務運行測驗；這也回傳了一條錯誤訊息：“錯誤：包 org.junit 不存在”。

這是我的內容FizzBuzz\src\test\java\com.gradle.tutorial\FizzBuzzTest.java：

package com.gradle.tutorial;
import org.junit.Assert;
import org.junit.Test;

public class FizzBuzzTest {
    @Test
    public void FizzBuzzNormalNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assert.assertEquals("1", fb.convert(1));
        Assert.assertEquals("2", fb.convert(2));
    }

    @Test
    public void FizzBuzzThreeNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assert.assertEquals("Fizz", fb.convert(3));
    }

    @Test
    public void FizzBuzzFiveNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assert.assertEquals("Buzz", fb.convert(5));
    }

    @Test
    public void FizzBuzzThreeAndFiveNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assert.assertEquals("Buzz", fb.convert(5));
    }
}

我由教程手動創建的唯一其他檔案是......

FizzBuzz\src\main\java\com.gradle.tutorial\FizzBuzzProcessor.java

package com.gradle.tutorial;

public class FizzBuzzProcessor {
    public static void main(String[] args) {
        for (int i = 1; i <= 100; i  ) {
            System.out.println(convert(i));
        }
    }

    public static String convert(int fizzBuzz) {
        if (fizzBuzz % 15 == 0) {
            return "FizzBuzz";
        }
        if (fizzBuzz % 3 == 0) {
            return "Fizz";
        }
        if (fizzBuzz % 5 == 0) {
            return "Buzz";
        }
        return String.valueOf(fizzBuzz);
    }
}

和

FizzBuzz\build.gradle

plugins {
    id 'java'
}

group 'org.example'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.2'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.2'
}

test {
    useJUnitPlatform()
}

These are all as the tutorial have them (I simply copy-pasted them.)

Because FizzBuzzTest.java doesn't have ?, I cannot run the test to complete Step 4. What should I do?

(When creating FizzBuzzTest.java following the step "Create a test class", the dialogue automatically selected JUnit5 instead of JUnit4 that the tutorial was suggesting. I tried JUnit4 but the dialogue said it could not be found, so I changed it back to JUnit5.)

uj5u.com熱心網友回復：

創建專案時，會自動創建 build.gradle 檔案，并默認包含 junit 依賴項。

您無需添加任何其他內容。由于本教程基于 JUnit4，請在我們更新教程時考慮將 JUnit5 降級為 JUnit4。

uj5u.com熱心網友回復：

我們更新了檔案，現在專案測驗類的源將使用 JUnit 5 類，因為最新的 IDE 版本默認使用 JUnit 5 版本作為依賴：

package com.gradle.tutorial;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

public class FizzBuzzTest {
    @Test
    public void FizzBuzzNormalNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assertions.assertEquals("1", fb.convert(1));
        Assertions.assertEquals("2", fb.convert(2));
    }

    @Test
    public void FizzBuzzThreeNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assertions.assertEquals("Fizz", fb.convert(3));
    }

    @Test
    public void FizzBuzzFiveNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assertions.assertEquals("Buzz", fb.convert(5));
    }

    @Test
    public void FizzBuzzThreeAndFiveNumbers() {

        FizzBuzzProcessor fb = new FizzBuzzProcessor();
        Assertions.assertEquals("Buzz", fb.convert(5));
    }
}

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