Add CopyFileTestRule.
diff --git a/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java b/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
index 9a276e9..656a97a 100644
--- a/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
+++ b/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
@@ -14,6 +14,7 @@
* See the license for the specific language governing permissions and
* limitations under the license.
*/
+
package org.apache.commons.testing.net;
import java.io.IOException;
diff --git a/commons-testing-generic/src/test/java/org/apache/commons/testing/CloserTest.java b/commons-testing-generic/src/test/java/org/apache/commons/testing/CloserTest.java
index b812292..ccb939d 100644
--- a/commons-testing-generic/src/test/java/org/apache/commons/testing/CloserTest.java
+++ b/commons-testing-generic/src/test/java/org/apache/commons/testing/CloserTest.java
@@ -14,6 +14,7 @@
* See the license for the specific language governing permissions and
* limitations under the license.
*/
+
package org.apache.commons.testing;
import org.junit.Assert;
diff --git a/commons-testing-junit4/pom.xml b/commons-testing-junit4/pom.xml
index 836c935..5c27ac3 100644
--- a/commons-testing-junit4/pom.xml
+++ b/commons-testing-junit4/pom.xml
@@ -76,6 +76,10 @@
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
+ <dependency>
+ <groupId>commons-io</groupId>
+ <artifactId>commons-io</artifactId>
+ </dependency>
</dependencies>
<reporting>
diff --git a/commons-testing-junit4/src/main/java/org/apache/commons/testing/junit4/io/CopyFileTestRule.java b/commons-testing-junit4/src/main/java/org/apache/commons/testing/junit4/io/CopyFileTestRule.java
new file mode 100644
index 0000000..38792c0
--- /dev/null
+++ b/commons-testing-junit4/src/main/java/org/apache/commons/testing/junit4/io/CopyFileTestRule.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+
+package org.apache.commons.testing.junit4.io;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Objects;
+
+import org.apache.commons.io.FileUtils;
+import org.junit.Assert;
+import org.junit.rules.ExternalResource;
+import org.junit.rules.TemporaryFolder;
+
+/**
+ * Copies a file as a JUnit TestRule.
+ *
+ * @since 1.0.0
+ */
+public class CopyFileTestRule extends ExternalResource {
+
+ /**
+ * Creates a test rule that will copy a file to a given temporary folder.
+ *
+ * @param sourceFilePath
+ * the file to copy.
+ * @param targetTemporaryFolder
+ * the destination folder.
+ * @param targetFilePath
+ * @return a new test rule.
+ */
+ public static CopyFileTestRule create(final String sourceFilePath, final TemporaryFolder targetTemporaryFolder,
+ final String targetFilePath) {
+ return new CopyFileTestRule(sourceFilePath, targetTemporaryFolder, targetFilePath);
+ }
+
+ private final TemporaryFolder targetTemporaryFolder;
+ private final String targetFileName;
+ private final String sourceFilePath;
+
+ CopyFileTestRule(final String sourceFilePath, final TemporaryFolder targetTemporaryFolder,
+ final String targetFilePath) {
+ super();
+ this.sourceFilePath = Objects.requireNonNull(sourceFilePath, "sourceFilePath");
+ this.targetTemporaryFolder = Objects.requireNonNull(targetTemporaryFolder, "targetTemporaryFolder");
+ this.targetFileName = Objects.requireNonNull(targetFilePath, "targetFileName");
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.junit.rules.ExternalResource#before()
+ */
+ @Override
+ protected void before() throws Throwable {
+ copyFile();
+ }
+
+ private void copyFile() throws IOException {
+ final File fromFile = getSourceFile();
+ final File toFile = getTargetFile();
+ FileUtils.copyFile(fromFile, toFile);
+ Assert.assertTrue(toFile.exists());
+ }
+
+ public File getSourceFile() {
+ return new File(sourceFilePath);
+ }
+
+ public File getTargetFile() {
+ return new File(targetTemporaryFolder.getRoot(), targetFileName);
+ }
+
+}
diff --git a/commons-testing-junit4/src/test/java/org/apache/commons/testing/junit4/io/CopyFileTestRuleTest.java b/commons-testing-junit4/src/test/java/org/apache/commons/testing/junit4/io/CopyFileTestRuleTest.java
new file mode 100644
index 0000000..022995f
--- /dev/null
+++ b/commons-testing-junit4/src/test/java/org/apache/commons/testing/junit4/io/CopyFileTestRuleTest.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache license, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the license for the specific language governing permissions and
+ * limitations under the license.
+ */
+
+package org.apache.commons.testing.junit4.io;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.testing.junit4.RuleChainFactory;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.RuleChain;
+import org.junit.rules.TemporaryFolder;
+
+public class CopyFileTestRuleTest {
+
+ public TemporaryFolder temporaryFolder = new TemporaryFolder();
+
+ public CopyFileTestRule copyFileTestRule = CopyFileTestRule.create("src/test/resources/test.txt", temporaryFolder,
+ "test-dest.txt");
+
+ @Rule
+ public RuleChain ruleChain = RuleChainFactory.create(temporaryFolder, copyFileTestRule);
+
+ @Test
+ public void test() throws IOException {
+ Assert.assertEquals("test",
+ FileUtils.readFileToString(copyFileTestRule.getTargetFile(), StandardCharsets.UTF_8).trim());
+
+ }
+}
diff --git a/commons-testing-junit4/src/test/resources/test.txt b/commons-testing-junit4/src/test/resources/test.txt
new file mode 100644
index 0000000..77356c3
--- /dev/null
+++ b/commons-testing-junit4/src/test/resources/test.txt
@@ -0,0 +1 @@
+test
diff --git a/pom.xml b/pom.xml
index 909ad78..d784071 100644
--- a/pom.xml
+++ b/pom.xml
@@ -71,6 +71,11 @@
<version>${junit4.version}</version>
</dependency>
<dependency>
+ <groupId>commons-io</groupId>
+ <artifactId>commons-io</artifactId>
+ <version>${commons-io.version}</version>
+ </dependency>
+ <dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang.version}</version>
@@ -139,6 +144,7 @@
<mongodb2.version>2.14.3</mongodb2.version>
<mongodb3.version>3.6.1</mongodb3.version>
<junit4.version>4.12</junit4.version>
+ <commons-io.version>2.6</commons-io.version>
<commons-lang.version>3.7</commons-lang.version>
</properties>
