Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! 
How to use newFile method of org.junit.rules.TemporaryFolder class
Best junit code snippet using org.junit.rules.TemporaryFolder.newFile
Source:ExecutableITestBase.java 
...63 PTRANS_ALL = new File(System.getProperty("ptrans-all.path", "target/ptrans-all.jar")).getAbsolutePath();64 }65 @Before66 public void before() throws Exception {67 ptransConfFile = temporaryFolder.newFile();68 try (FileOutputStream out = new FileOutputStream(ptransConfFile)) {69 Resources.copy(Resources.getResource("ptrans.conf"), out);70 }71 ptransOut = temporaryFolder.newFile();72 ptransErr = temporaryFolder.newFile();73 ptransPidFile = temporaryFolder.newFile();74 ptransProcessBuilder = new ProcessBuilder();75 ptransProcessBuilder.directory(temporaryFolder.getRoot());76 ptransProcessBuilder.redirectOutput(ptransOut);77 ptransProcessBuilder.redirectError(ptransErr);78 ptransProcessBuilder.command(JAVA, "-Xss228k", "-jar", PTRANS_ALL);79 }80 protected void assertPtransHasStarted(Process process, File output) throws Exception {81 boolean isRunning = process.isAlive() && ptransOutputHasStartMessage(output);82 while (!isRunning) {83 isRunning = !ptransProcess.waitFor(1, SECONDS) && ptransOutputHasStartMessage(output);84 }85 }86 private boolean ptransOutputHasStartMessage(File output) throws IOException {87 return Files.lines(output.toPath()).anyMatch(line -> line.contains("ptrans started"));...
Source:FileUtilsTest.java
...37 }38 @Test39 public void testOpenOutputStreamCannotWrite() throws IOException {40 thrown.expectMessage(allOf(startsWith("File '") ,endsWith("' cannot be written to")));41 File targetFile = temporaryFolder.newFile("cannotWrite.txt");42 targetFile.setWritable(false);43 FileUtils.openOutputStream(targetFile, true);44 }45 @Test46 public void testOpenOutputStream() throws IOException {47 File targetFile = temporaryFolder.newFile("targetFile.txt");48 FileOutputStream outputStream = FileUtils.openOutputStream(targetFile, true);49 Assert.assertNotNull(outputStream);50 outputStream.close();51 }52 @Test53 public void testWriteByteArrayToFile() throws IOException {54 String data = "test data";55 File targetFile = temporaryFolder.newFile("targetFile.txt");56 FileUtils.writeByteArrayToFile(targetFile, data.getBytes());57 TestUtils.assertEqualContent(data.getBytes(), targetFile);58 }59 @Test60 public void testWriteByteArrayToFileWithAppend() throws IOException {61 String data = "test data";62 File targetFile = temporaryFolder.newFile("targetFile.txt");63 FileUtils.writeByteArrayToFile(targetFile, data.getBytes(), true);64 TestUtils.assertEqualContent(data.getBytes(), targetFile);65 }66 @Test67 public void testReadFileToString() throws IOException {68 String data = "test data";69 File targetFile = temporaryFolder.newFile("targetFile.txt");70 FileUtils.writeByteArrayToFile(targetFile, data.getBytes(), true);71 String content = FileUtils.readFileToString(targetFile, Charset.defaultCharset());72 TestUtils.assertEqualContent(content.getBytes(), targetFile);73 }74 @Test75 public void testSaveCommandHistory() throws IOException {76 //cls77 int[] command1 = new int[]{99,108,115};78 File targetFile = temporaryFolder.newFile("targetFile.txt");79 FileUtils.saveCommandHistory(TestUtils.newArrayList(command1), targetFile);80 TestUtils.assertEqualContent("cls\n".getBytes(), targetFile);81 }82 @Test83 public void testLoadCommandHistory() throws IOException {84 //cls85 int[] command1 = new int[]{99,108,115};86 File targetFile = temporaryFolder.newFile("targetFile.txt");87 FileUtils.saveCommandHistory(TestUtils.newArrayList(command1), targetFile);88 List<int[]> content = FileUtils.loadCommandHistory(targetFile);89 Assert.assertArrayEquals(command1, content.get(0));90 }91}...
Source:Rule.java
...28 * public TemporaryFolder folder= new TemporaryFolder();29 *30 * @Test31 * public void testUsingTempFolder() throws IOException {32 * File createdFile= folder.newFile("myfile.txt");33 * File createdFolder= folder.newFolder("subfolder");34 * // ...35 * }36 * }37 * </pre>38 * <p>39 * And the same using a method.40 * <pre>41 * public static class HasTempFolder {42 * private TemporaryFolder folder= new TemporaryFolder();43 *44 * @Rule45 * public TemporaryFolder getFolder() {46 * return folder;47 * }48 *49 * @Test50 * public void testUsingTempFolder() throws IOException {51 * File createdFile= folder.newFile("myfile.txt");52 * File createdFolder= folder.newFolder("subfolder");53 * // ...54 * }55 * }56 * </pre>57 * <p>58 * For more information and more examples, see59 * {@link org.junit.rules.TestRule}.60 *61 * @since 4.762 */63@Retention(RetentionPolicy.RUNTIME)64@Target({ElementType.FIELD, ElementType.METHOD})65public @interface Rule {...
Source:SlipSyntaxActionsTest.java
...21 };22 // tests OK23 @Test24 public void test_right_ok() throws Exception{25 CompilerTestHelper.launchCompilation("/syntax/actions/ok/right.slip", testFolder.newFile(), true, "syntax::actions: right.slip");26 }27 @Test28 public void test_left_ok() throws Exception{29 CompilerTestHelper.launchCompilation("/syntax/actions/ok/left.slip", testFolder.newFile(), true, "syntax::actions: left.slip");30 }31 @Test32 public void test_exprg_arg_ok() throws Exception{33 CompilerTestHelper.launchCompilation("/syntax/actions/ok/exprg_arg.slip", testFolder.newFile(), true, "syntax::actions: exprg_arg.slip");34 }35 @Test36 public void test_func_arg_ok() throws Exception{37 CompilerTestHelper.launchCompilation("/syntax/actions/ok/func_arg.slip", testFolder.newFile(), true, "syntax::actions: func_arg.slip");38 }39 @Test40 public void test_no_arg_ok() throws Exception{41 CompilerTestHelper.launchCompilation("/syntax/actions/ok/no_arg.slip", testFolder.newFile(), true, "syntax::actions: no_arg.slip");42 }43 // tests KO44 @Test45 public void test_fight_arg_ko() throws Exception{46 CompilerTestHelper.launchCompilation("/syntax/actions/ko/fight_arg.slip", testFolder.newFile(), false, "syntax::actions: fight_arg.slip");47 }48}...
Source:SearchTest.java
...14 public TemporaryFolder temporaryFolder = new TemporaryFolder();15 @Before16 public void init() {17 try {18 temporaryFolder.newFile("lib1.dll");19 temporaryFolder.newFile("lib2.dll");20 temporaryFolder.newFile("text1.txt");21 temporaryFolder.newFile("text2.txt");22 temporaryFolder.newFolder("tmp");23 temporaryFolder.newFolder("img");24 temporaryFolder.newFile("tmp/temp1.tmp");25 temporaryFolder.newFile("tmp/temp2.tmp");26 temporaryFolder.newFile("img/img1.png");27 temporaryFolder.newFile("img/img2.png");28 } catch (Exception e) {29 e.printStackTrace();30 System.out.println("ÐÑивеÑ");31 }32 }33 @Test34 public void whenWithExt() {35 Search search = new Search();36 List<String> exts = new ArrayList<>();37 exts.add("tmp");38 exts.add("dll");39 List<File> files = search.files(temporaryFolder.getRoot().getPath(), exts);40 for (File f: files) {41 String name = f.getName();...
Source:SlipNbcAssignationTest.java
...21 };22 // tests OK23 @Test24 public void test_char_ok() throws Exception{25 CompilerTestHelper.launchCompilation("/nbc/assignation/ok/char.slip", testFolder.newFile(), true, "nbc::assignation: char.slip");26 }27 @Test28 public void test_number_ok() throws Exception{29 CompilerTestHelper.launchCompilation("/nbc/assignation/ok/number.slip", testFolder.newFile(), true, "nbc::assignation: number.slip");30 }31 @Test32 public void test_bool_ok() throws Exception{33 CompilerTestHelper.launchCompilation("/nbc/assignation/ok/bool.slip", testFolder.newFile(), true, "nbc::assignation: bool.slip");34 }35 @Test36 public void test_assignation_direct_ok() throws Exception{37 CompilerTestHelper.launchCompilation("/nbc/assignation/ok/assignation_direct.slip", testFolder.newFile(), true, "nbc::assignation: assignation_direct.slip");38 }39 // tests KO40}...
Source:TemporaryFolder.java
...5 public static org.junit.rules.TemporaryFolder$Builder builder();6 protected void before() throws java.lang.Throwable;7 protected void after();8 public void create() throws java.io.IOException;9 public java.io.File newFile(java.lang.String) throws java.io.IOException;10 public java.io.File newFile() throws java.io.IOException;11 public java.io.File newFolder(java.lang.String) throws java.io.IOException;12 public java.io.File newFolder(java.lang.String...) throws java.io.IOException;13 public java.io.File newFolder() throws java.io.IOException;14 public java.io.File getRoot();15 public void delete();16}...
newFile
Using AI Code Generation
1package com.baeldung.temporaryfolder;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.TemporaryFolder;5import java.io.File;6import java.io.IOException;7import static org.junit.Assert.assertTrue;8public class TemporaryFolderUnitTest {9 public TemporaryFolder temporaryFolder = new TemporaryFolder();10 public void whenNewFile_thenCreated() throws IOException {11 File created = temporaryFolder.newFile("myfile.txt");12 assertTrue(created.isFile());13 }14}15package com.baeldung.temporaryfolder;16import org.junit.Rule;17import org.junit.Test;18import org.junit.rules.TemporaryFolder;19import java.io.File;20import java.io.IOException;21import static org.junit.Assert.assertTrue;22public class TemporaryFolderUnitTest {23 public TemporaryFolder temporaryFolder = new TemporaryFolder();24 public void whenNewFolder_thenCreated() throws IOException {25 File created = temporaryFolder.newFolder("subfolder");26 assertTrue(created.isDirectory());27 }28}29package com.baeldung.temporaryfolder;30import org.junit.Rule;31import org.junit.Test;32import org.junit.rules.TemporaryFolder;33import java.io.File;34import java.io.IOException;35import static org.junit.Assert.assertTrue;36public class TemporaryFolderUnitTest {37 public TemporaryFolder temporaryFolder = new TemporaryFolder();38 public void whenCreated_thenDeleted() throws IOException {39 File created = temporaryFolder.newFile("myfile.txt");40 temporaryFolder.create();41 assertTrue(created.exists());42 temporaryFolder.delete();43 assertTrue(!created.exists());44 }45}46package com.baeldung.temporaryfolder;47import org.junit.Rule;48import org.junit.Test;49import org.junit.rules.TemporaryFolder;50import java.io.File;51import java.io.IOException;52import static org.junit.Assert.assertTrue;53public class TemporaryFolderUnitTest {54 public TemporaryFolder temporaryFolder = new TemporaryFolder();55 public void whenCreated_thenDeleted() throws IOException {56 File created = temporaryFolder.newFile("myfile.txt");57 temporaryFolder.create();58 assertTrue(created.exists());59 temporaryFolder.delete();60 assertTrue(!created.exists());61 }62}
newFile
Using AI Code Generation
1import org.junit.Rule;2import org.junit.Test;3import java.io.File;4import java.io.IOException;5import static org.junit.Assert.assertTrue;6public class TemporaryFolderTest {7 public TemporaryFolder folder = new TemporaryFolder();8 public void shouldCreateNewFileInTemporaryFolder() throws IOException {9 File created = folder.newFile("myfile.txt");10 assertTrue(created.isFile());11 }12}
newFile
Using AI Code Generation
1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.TemporaryFolder;4import java.io.File;5import java.io.IOException;6public class TemporaryFolderTest {7 public TemporaryFolder folder = new TemporaryFolder();8 public void testUsingTempFolder() throws IOException {9 File createdFile = folder.newFile("myfile.txt");10 File createdFolder = folder.newFolder("subfolder");11 }12}
newFile
Using AI Code Generation
1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.TemporaryFolder;4import java.io.File;5import java.io.IOException;6public class TemporaryFolderTest {7 public TemporaryFolder folder = new TemporaryFolder();8 public void testUsingTempFolder() throws IOException {9 File createdFile = folder.newFile("myfile.txt");10 File createdFolder = folder.newFolder("subfolder");11 }12}
newFile
Using AI Code Generation
1import java.io.File;2import java.io.IOException;3import org.junit.Rule;4import org.junit.Test;5import org.junit.rules.TemporaryFolder;6public class TemporaryFolderTest {7 public TemporaryFolder folder = new TemporaryFolder();8 public void testUsingTempFolder() throws IOException {9 File createdFile = folder.newFile("myfile.txt");10 File createdFolder = folder.newFolder("subfolder");11 System.out.println(createdFile);12 System.out.println(createdFolder);13 }14}15import java.io.File;16import java.io.IOException;17import org.junit.Rule;18import org.junit.Test;19import org.junit.rules.TemporaryFolder;20public class TemporaryFolderTest {21 public TemporaryFolder folder = new TemporaryFolder();22 public void testUsingTempFolder() throws IOException {23 File createdFile = folder.newFile("myfile.txt");24 File createdFolder = folder.newFolder("subfolder");25 System.out.println(createdFile);26 System.out.println(createdFolder);27 }28}29public void testUsingTemporaryFolder() throws IOException {30 File created = temporaryFolder.newFile("myfile.txt");31 assertTrue(created.isFile());32 assertEquals(temporaryFolder.getRoot(), created.getParentFile());33}34File created = temporaryFolder.newFile(new String[]{"mydir", "myfile.txt"});
newFile
Using AI Code Generation
1import java.io.File;2import java.io.IOException;3import org.junit.Rule;4import org.junit.Test;5import org.junit.rules.TemporaryFolder;6public class TemporaryFolderTest {7 public TemporaryFolder folder = new TemporaryFolder();8 public void testUsingTempFolder() throws IOException {9 File createdFile = folder.newFile("myfile.txt");10 File createdFolder = folder.newFolder("subfolder");11 System.out.println(createdFile);12 System.out.println(createdFolder);13 }14}
newFile
Using AI Code Generation
1public void testUsingTemporaryFolder() throws IOException {2 File created = temporaryFolder.newFile("myfile.txt");3 assertTrue(created.isFile());4 assertEquals(temporaryFolder.getRoot(), created.getParentFile());5}6File created = temporaryFolder.newFile(new String[]{"mydir", "myfile.txt"});
newFile
Using AI Code Generation
1public void testNewFile() throws IOException {2 TemporaryFolder folder = new TemporaryFolder();3 folder.create();4 File newFile = folder.newFile("myfile.txt");5 assertTrue(newFile.exists());6}7[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ junit4-tutorial ---8[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ junit4-tutorial ---
newFile
Using AI Code Generation
1package com.journaldev.junit.temporaryfolder;2import java.io.File;3import java.io.IOException;4import org.junit.Rule;5import org.junit.Test;6import org.junit.rules.TemporaryFolder;7public class TemporaryFolderTest {8 public TemporaryFolder folder = new TemporaryFolder();9 public void testUsingTempFolder() throws IOException {10 File createdFile = folder.newFile("myfile.txt");11 System.out.println(createdFile);12 }13}14TemporaryFolder.newFolder() method15public File newFolder(String... folderNames) throws IOException16public void testUsingTempFolder() throws
newFile
Using AI Code Generation
1import org.junit.*;2import java.io.*;3import java.util.*;4import static org.junit.Assert.*;5public class TestTempFolder {6 TemporaryFolder folder = new TemporaryFolder();7 public rows IOException {8 File createdFolder = folder.newFolder("newfolder");9 File createdFile = folder.newFile("myfilefile.txt");10 assertTrue(createdFolder.exists());11 assertTrue(ceatedFile.exists());12 }13}14OK (1 test)15import org.junit.*;16import java.io.*;17import java.util.*;18import static org.junit.Assert.*;19public class TestTempFolder {20 public TemporaryFolder folder = new TemporaryFolder();21 public void testUsingTempFolder() throws IOException {22 File createdFolder = folder.newFolder("newfolder");23 assertTrue(createdFolder.exists());24 }25}26OK (1 test)27import org.junit.*;28import java.io.*;29import java.util.*;30import static org.junit.Assert.*;31public class TestTempFolder {32 public TemporaryFolder folder = new TemporaryFolder();33 public void testUsingTempFolder() throws IOException {34 File createdFile = folder.newFile("myfilefile.txt");35 assertTrue(createdFile.exists());36 }37}38OK (1 test)39import org.junit.*;40import java.io.*;41import java.util.*;42import static org.junit.Assert.*;43public class TestTempFolder {44 public TemporaryFolder folder = new TemporaryFolder();45 public void testUsingTempFolder() throws IOException {46 File createdFolder = folder.newFolder("newfolder");47package com.journaldev.junit.temporaryfolder;48import java.io.File;49import java.io.IOException;50import org.junit.Rule;51import org.junit.Test;52import org.junit.rules.TemporaryFolder;53public class TemporaryFolderTest {54 public TemporaryFolder folder = new TemporaryFolder();55 public void testUsingTempFolder() throws IOException {56 File createdFolder = folder.newFolder("myfolder");57 System.out.println(createdFolder);58 }59}60TemporaryFolder.getRoot() method61public File getRoot()62package com.journaldev.junit.temporaryfolder;63import java.io.File;64import java.io.IOException;65import org.junit.Rule;66import org.junit.Test;67import org.junit.rules.TemporaryFolder;68public class TemporaryFolderTest {69 public TemporaryFolder folder = new TemporaryFolder();70 public void testUsingTempFolder() throws
JUnit Tutorial:
LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.
JUnit Tutorial Chapters:
Here are the detailed JUnit testing chapters to help you get started:
- Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
- Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
- What is the JUnit framework
- Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
- Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
- JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
- Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
- Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
- Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
- Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
- Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
- Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
- Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
- Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
- Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.
JUnit Certification:
You can also check out our JUnit certification if you wish to take your career in Selenium automation testing with JUnit to the next level.
Run junit automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
