scala编写测试用例

1.软件都需要单元测试，需要编写一个测试用例验证程序是否正确

2.源代码

需要测试函数平方是否正确，举例说明

2.1被测试代码为：

  def square(x: Int) = x * x

}

2.2测试用例为：

import org.testng.annotations._ import org.testng.Assert import org.scalatest.testng.TestNGSuite import java.lang.Boolean class SquareHelloKenyTest extends TestNGSuite { @Test def testquare{assert(HelloKeny.square(10) === 100) } } 验证HelloKeny.square(10)===1000，如果是正确的，返回0

2.3build.sbt需要增加一个类支持

讯享网libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.8" % "test" libraryDependencies += "org.testng" % "testng" % "5.7" classifier "jdk15" 

3.编译

sbt test 编译和测试用例运行成功！

[info] Loading global plugins from /Users/keny/.sbt/1.0/plugins
[info] Loading project definition from /Users/keny/PythonProjects/sbtDemo/project
[info] Loading settings for project sbtdemo from build.sbt ...
[info] Set current project to sbtDemo (in build file:/Users/keny/PythonProjects/sbtDemo/)
[info] Compiling 1 Scala source to /Users/keny/PythonProjects/sbtDemo/target/scala-2.11/test-classes ...
[warn] there was one deprecation warning; re-run with -deprecation for details
[warn] one warning found
[warn] Getting the hostname AppledeMacBook-Pro.local was slow (5006. ms). This is likely because the computer's hostname is not set. You can set the hostname with the command: scutil --set HostName $(scutil --get LocalHostName).
[Parser] Running:
  Command line suite

讯享网

===============================================
Command line suiteKenyTest 0s
Total tests run: 1, Failures: 0, Skips: 0
===============================================

[info] SquareHelloKenyTest:
[info] - testquare
[info] Run completed in 405 milliseconds.
[info] Total number of tests run: 1
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 1, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 7 s, completed 2020-4-2 10:45:55

用最新版本编译完成OK

[info] Compiling 2 Scala sources to /Users/keny/PythonProjects/sbtDemo/target/scala-2.13/classes ...
[info] Compiling 1 Scala source to /Users/keny/PythonProjects/sbtDemo/target/scala-2.13/test-classes ...
[warn] there was one deprecation warning
[warn] there was one deprecation warning (since 2.13.0)
[warn] there were two deprecation warnings in total; re-run with -deprecation for details
[warn] three warnings found
[Parser] Running:
  Command line suite

===============================================
Command line suite
Total tests run: 1, Failures: 0, Skips: 0
===============================================
  | => SquareHelloKenyTest 0s
[info] SquareHelloKenyTest:
[info] - testquare
[info] Run completed in 500 milliseconds.
[info] Total number of tests run: 1
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 1, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 459 s (07:39), completed 2020-4-2 11:00:27