Gradle Java 專案 - 程式碼與測試

原始碼

Hello.java

package examples;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

public class Hello {

    public String hello() throws IOException {

        InputStream in = Thread.currentThread().getContextClassLoader().getResourceAsStream("hello.txt");

        BufferedReader reader = new BufferedReader(new InputStreamReader(in));

        StringBuilder s = new StringBuilder();

        String line;

        while ((line = reader.readLine()) != null) {

            System.out.println(line);

            s.append(line);

        }

        return s.toString();

    }

    

}

準備 build.gradle 並套用 java plugin

apply plugin: 'java'

編譯 Java

$ gradle compileJava

BUILD SUCCESSFUL in 620ms

1 actionable task: 1 executed

清除 class 檔案

$ gradle clean

BUILD SUCCESSFUL in 564ms

1 actionable task: 1 executed

建置程式碼並執行測試

加入 junit 依賴

apply plugin: 'java'

repositories {

    mavenCentral()

}

dependencies {

    testCompile 'junit:junit:4.12'

}

加入測試程式碼

package examples;

import java.io.IOException;

import java.net.URISyntaxException;

import java.nio.file.Files;

import java.nio.file.Paths;

import org.junit.Assert;

import org.junit.Test;

public class HelloTest {

    @Test

    public void hello() throws IOException, URISyntaxException {

        Hello h = new Hello();

        String hello = h.hello();

        String hellotest = new String(Files.readAllBytes(Paths.get(Thread.currentThread().getContextClassLoader().getResource("hellotest.txt").toURI())));

        Assert.assertEquals(hellotest, hello);

    }

   

}

編譯與測試

$ gradle build

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.

Use '--warning-mode all' to show the individual deprecation warnings.

See https://docs.gradle.org/6.3/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 1s

6 actionable tasks: 6 executed

測試報告

用瀏覽器開啟：build/reports/tests/test/index.html