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我目前正在嘗試使用GMavenPlus編寫Maven插件（謝謝@Keegan！）和Groovy 2.4.3。簡而言之，該插件解析SQL DDL的目錄並從這些解析的DDL中生成輸出單元測試GMavenPlus Groovy Mojos - project.basedir未擴展
當在完整的消費項目中構建，導入和運行時，Mojo本身工作得很好。 Horrah！
問題出在單元測試。當試圖對這個Mojo進行單元測試時，像${project.basedir}這樣的Maven POM變量並不是 擴展的，因此mojo失敗時會出現「File not found！[$ {project.basedir}/src/test/resources/ddl]」錯誤。由於 您可以從該錯誤消息中看到，${project.basedir}作爲文字傳遞而不是展開。
我目前使用Maven Plugin Testing Harness（與固定依賴關係，請參閱this blog），JUnit 4.12和AssertJ 3.0.0作爲我的測試堆棧。
任何想法或特定的技巧，讓像project.basedir這樣的東西在單元測試中展開？
在此先感謝！
單元測試問題：
import edge.SqlToScalaMojo
import org.junit.Before
import org.junit.Test
/**
* Created by medge on 6/15/15.
*/
class SqlToScalaMojoTest extends BaseMojoTest<SqlToScalaMojo> {
SqlToScalaMojo mojo
@Before
void setup() {
mojo = getMojo("parse-ddls")
}
@Test
void testMojoExecution() throws Exception {
assertThat mojo isNotNull()
mojo.execute()
}
}
BaseMojoTest.groovy（其實只是一個方便的基類）：
import org.apache.maven.plugin.AbstractMojo
import org.apache.maven.plugin.testing.MojoRule
import org.junit.Rule
/**
* Base Test class for Mojo tests. Extends {@link org.assertj.core.api.Assertions}
*
* If a type is given to this class then the result of #getMojo() does not have to be cast, reducing the amount of code
* to be written in the unit tests themselves.
*
* Created by medge on 6/5/15.
*/
abstract class BaseMojoTest<T extends AbstractMojo> extends org.assertj.core.api.Assertions {
/**
* MojoRule used to lookup Mojos
*/
@Rule public MojoRule rule = new MojoRule()
/**
* Get a configured mojo using the default pom file. Calls #getMojo(goal, getPom()) implicitly
*
* @param goal Goal to look up
* @return T configured Mojo
*/
T getMojo(String goal) {
getMojo(goal, getPom())
}
/**
* Get a configured mojo using the specified pom file
*
* @param goal Goal to look up
* @param pom POM file to use when configuring Mojo
* @return T configured Mojo
*/
T getMojo(String goal, File pom) {
T mojo = (T) rule.lookupMojo(goal, pom)
mojo
}
/**
* Default POM file if no custom path is given
*/
String defaultPomPath = "src/test/resources/plugin-config.xml"
/**
* Return a File reference containing the default POM file
*
* @return File
*/
File getPom() {
getPom(defaultPomPath)
}
/**
* Return a File reference containing the POM file found at the specified path. Implicitly asserts that the POM
* exists using <code>assertFile</code>
*
* @param path Path to user-defined POM (overrides the default if provided)
* @return File containing the specified POM.
*/
File getPom(String path) {
File _pom = getTestFile(path)
// Implicitly assert POM exists
assertFile(_pom)
// Then return the POM file
_pom
}
/**
* Convenience method to assert that a file is valid
*
* @param file File to validate
*/
static void assertFile(File file) {
assertThat file isNotNull()
assertThat file exists()
}
/**
* Get the current project's base directory. From {@link org.codehaus.plexus.PlexusTestCase}
*
* @return Base directory path
*/
static String getBaseDir() {
final String path = System.getProperty("basedir");
path ?: new File("").getAbsolutePath();
}
/**
* Return a test file from the src/test/resources directory. Assumes the base directory is src/test/resources so the
* src/test/resources prefix can be omitted from the path if desired
*
* @param path File path
* @return File
*/
static File getTestFile(String path) {
File testFile
if(path.indexOf("src/test/resources/") > -1)
testFile = getTestFile(getBaseDir(), path)
else
testFile = getTestFile(getBaseDir(), "src/test/resources/${path}")
testFile
}
/**
* Retrieve a test file from the given baseDir/path
*
* @param baseDir String base directory to look in
* @param path String path to the file desired
* @return File
*/
static File getTestFile(String baseDir, String path) {
new File(baseDir, path)
}
}
的魔咒本身主要POM文件：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>edge</groupId>
<artifactId>parser-mojo</artifactId>
<version>0.0.3-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<properties>
<groovy.version>2.4.3</groovy.version>
<maven.version>3.3.3</maven.version>
<junit.version>4.12</junit.version>
<assertj.version>3.0.0</assertj.version>
</properties>
<dependencies>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>${groovy.version}</version>
</dependency>
<!-- Test dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<!-- Dependencies for Maven Mojos -->
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-utils</artifactId>
<version>3.0.22</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-artifact</artifactId>
<version>${maven.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-compat</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>${maven.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-testing</groupId>
<artifactId>maven-plugin-testing-harness</artifactId>
<version>3.3.0</version>
<scope>test</scope>
<type>jar</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<goals>
<goal>addSources</goal>
<goal>addTestSources</goal>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>testGenerateStubs</goal>
<goal>testCompile</goal>
<goal>removeStubs</goal>
<goal>removeTestStubs</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.4</version>
<configuration>
<!-- see http://jira.codehaus.org/browse/MNG-5346 -->
<skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
</configuration>
<executions>
<execution>
<id>generate-descriptor</id>
<goals>
<goal>descriptor</goal>
</goals>
</execution>
<execution>
<id>help-goal</id>
<goals>
<goal>helpmojo</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
在單元測試期間使用的測試POM：
<project>
<build>
<plugins>
<plugin>
<groupId>edge</groupId>
<artifactId>parser-mojo</artifactId>
<version>0.0.3-SNAPSHOT</version>
<configuration>
<template>${project.basedir}/src/test/resources/sample.template</template>
<inputDir>${project.basedir}/src/test/resources/ddl</inputDir>
<outputDir>${project.basedir}/src/test/resources/generated/</outputDir>
</configuration>
<executions>
<execution>
<phase>generate-resources</phase>
<goals>
<goal>parse-ddls</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
謝謝！