Question

我有一个0.13.7 SBT项目，有几个子项目。

其中一个名为webapp，在JUnit中有许多webapp/src/test/java次测试。

运行时：

sbt webapp/test

只运行ScalaTest个测试，但没有JUnit测试。

我的build.sbt文件的摘录：

libraryDependencies ++= Seq(
    "com.novocode" % "junit-interface" % "0.11" % Test
)

lazy val webapp = project
    settings(
        Seq(
            projectDependencies ++= Seq(
                ....
                "org.scalatest" %% "scalatest" % "2.2.2" % Test,
                "junit" % "junit" % "4.11" % Test,
                "com.novocode" % "junit-interface" % "0.11" % Test
            )
        ): _*
    )

示例JUnit测试：

import org.junit.Test;

public class CodificadorBase64Test {
    @Test
    public void testPlain() {
        byte b[] = {64, 127, 72, 36, 100, 1, 5, 9, 123};
        assertEquals("QH9IJGQBBQl7", CodificadorBase64.encode(b));
    }
}

更新（更多研究）：

> webapp/testFrameworks
[info] List(TestFramework(WrappedArray(org.scalacheck.ScalaCheckFramework)), TestFramework(WrappedArray(org.specs2.runner.Specs2Framework, org.specs2.runner.SpecsFramework)), TestFramework(WrappedArray(org.specs.runner.SpecsFramework)), TestFramework(WrappedArray(org.scalatest.tools.Framework, org.scalatest.tools.ScalaTestFramework)), TestFramework(WrappedArray(com.novocode.junit.JUnitFramework))

show webapp/loadedTestFrameworks
[info] Map(TestFramework(WrappedArray(
  org.scalatest.tools.Framework, 
  org.scalatest.tools.ScalaTestFramework)
) -> org.scalatest.tools.Framework@65767aeb)

所以SBT已知JUnit支持但未加载。

调试输出：

[debug] Framework implementation 'org.scalacheck.ScalaCheckFramework' not present.
[debug] Framework implementation 'org.scalacheck.ScalaCheckFramework' not present.
[debug] Framework implementation 'org.scalacheck.ScalaCheckFramework' not present.
[debug] Framework implementation 'org.scalacheck.ScalaCheckFramework' not present.
[debug] Framework implementation 'org.specs2.runner.Specs2Framework' not present.
[debug] Framework implementation 'org.specs2.runner.Specs2Framework' not present.
[debug] Framework implementation 'org.specs2.runner.Specs2Framework' not present.
[debug] Framework implementation 'org.specs2.runner.Specs2Framework' not present.
[debug] Framework implementation 'org.specs2.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs2.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs2.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs2.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs.runner.SpecsFramework' not present.
[debug] Framework implementation 'org.specs.runner.SpecsFramework' not present.
[debug] Framework implementation 'com.novocode.junit.JUnitFramework' not present.
[debug] Framework implementation 'com.novocode.junit.JUnitFramework' not present.
[debug] Framework implementation 'com.novocode.junit.JUnitFramework' not present.
[debug] Framework implementation 'com.novocode.junit.JUnitFramework' not present.
[debug] Subclass fingerprints: List((org.scalatest.Suite,false,org.scalatest.tools.Framework$$anon$1@3ad42aff))
[debug] Subclass fingerprints: List((org.scalatest.Suite,false,org.scalatest.tools.Framework$$anon$1@97f54b))
[debug] Annotation fingerprints: List((org.scalatest.WrapWith,false,org.scalatest.tools.Framework$$anon$2@6a589982))
[debug] Annotation fingerprints: List((org.scalatest.WrapWith,false,org.scalatest.tools.Framework$$anon$2@1b95d5e6))
[debug] Subclass fingerprints: List((org.scalatest.Suite,false,org.scalatest.tools.Framework$$anon$1@5c997dac))
[debug] Subclass fingerprints: List((org.scalatest.Suite,false,org.scalatest.tools.Framework$$anon$1@406c43ef))
[debug] Annotation fingerprints: List((org.scalatest.WrapWith,false,org.scalatest.tools.Framework$$anon$2@282ddefc))
[debug] Annotation fingerprints: List((org.scalatest.WrapWith,false,org.scalatest.tools.Framework$$anon$2@4400c80))

使用：

SBT 0.13.9，和
JUnit 4.x。

相关信息：

Answer 1

最后，我发现，我必须将以下设置添加到子项目中：

lazy val webapp = project
    settings(
        Seq(
            projectDependencies ++= Seq(
                ....
                "org.scalatest" %% "scalatest" % "2.2.2" % Test,
                "junit" % "junit" % "4.11" % Test,
                crossPaths := false,
                "com.novocode" % "junit-interface" % "0.11" % Test
            )
        ): _*
    )

在子项目中声明junit-interface依赖项非常重要，此外，要将crossPaths设置设置为false。

线索由this issue提供。

如果主项目没有进行JUnit测试，则无需提供所需的测试设置。

此外，为了解失败的方法和原因，我们需要这个设置：

testOptions in Test := Seq(Tests.Argument(TestFrameworks.JUnit, "-a"))

Answer 2

这个关于在SBT中支持JUnit的问题被多次询问，并且格式略有不同。

多次点击使我很难找到最简单，最新的答案。

This answer by @david.perez seems clear and works with current (2018) SBT 1.1.4.

（那个特别的问题是关于JUnit版本的冲突。exclude("junit", "junit-dep")可能没有必要。）

我也会在此处复制粘贴代码以便快速访问：

libraryDependencies ++= Seq(
  "junit" % "junit" % "4.12" % Test,
  "com.novocode" % "junit-interface" % "0.11" % Test exclude("junit", "junit-dep")
)

使用SBT运行JUnit测试

2 个答案: