Examples with EvoSuiteFile org.evosuite.runtime.testdata.EvoSuiteFile used on opensource projects

Example 6 with EvoSuiteFile

use of org.evosuite.runtime.testdata.EvoSuiteFile in project evosuite by EvoSuite.

the class FileSystemHandlingTest method createNewFileByAddingLine.

@Test
public void createNewFileByAddingLine() throws IOException {
    RuntimeSettings.useVFS = true;
    Runtime.getInstance().resetRuntime();
    String data = "A new line to be added";
    EvoSuiteFile file = new EvoSuiteFile("foo");
    MockFile mf = new MockFile(file.getPath());
    Assert.assertFalse(mf.exists());
    FileSystemHandling.appendStringToFile(file, data);
    Assert.assertTrue(mf.exists());
    // try read bytes directly
    MockFileInputStream in = new MockFileInputStream(file.getPath());
    byte[] buffer = new byte[1024];
    in.read(buffer);
    in.close();
    String byteString = new String(buffer);
    Assert.assertTrue("Read: " + byteString, byteString.startsWith(data));
    // try with InputStreamReader
    InputStreamReader reader = new InputStreamReader(new MockFileInputStream(file.getPath()));
    char[] cbuf = new char[1024];
    reader.read(cbuf);
    reader.close();
    String charString = new String(cbuf);
    Assert.assertTrue("Read: " + charString, charString.startsWith(data));
    // try BufferedReader
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new MockFileInputStream(file.getPath())));
    cbuf = new char[1024];
    bufferedReader.read(cbuf);
    bufferedReader.close();
    charString = new String(cbuf);
    Assert.assertTrue("Read: " + charString, charString.startsWith(data));
    // try with Scanner
    Scanner fromFile = new Scanner(new MockFileInputStream(file.getPath()));
    String fileContent = fromFile.nextLine();
    fromFile.close();
    Assert.assertEquals(data, fileContent);
}