private File createDelimitedFile(Set<TestBean> theBeans) {
File aDelimitedFile = null;
try {
// Create a temporary file ...
aDelimitedFile = createTempFile(this.getClass().getName(), ".csv");
aDelimitedFile.deleteOnExit();
// Write the set of beans out to the file ...
BufferedWriter aWriter = new BufferedWriter(new FileWriter(aDelimitedFile));
for (TestBean aBean : theBeans) {
StringBuilder aStringBuilder = new StringBuilder();
aStringBuilder.append(aBean.getFirstName());
aStringBuilder.append(DEFAULT_DELIMITER);
aStringBuilder.append(aBean.getLastName());
aStringBuilder.append(DEFAULT_DELIMITER);
aStringBuilder.append(aBean.getFavoriteColor());
aWriter.append(aStringBuilder);
aWriter.newLine();
}
// File all buffers and close up shop ...
aWriter.flush();
aWriter.close();
} catch (IOException e) {
fail("Failed to create test delimited file.", e);
}
return aDelimitedFile;
}
@Test
public void testWriteWithArrayExpansion() {
StringBuilder longText = new StringBuilder(1000000);
for (int i = 0; i < 1000000; i++) {
longText.append(i % 10);
}
CsvWriterSettings s = new CsvWriterSettings();
s.setMaxCharsPerColumn(2);
CsvWriter w = new CsvWriter(s);
w.writeValue(longText);
String value = w.writeValuesToString().trim();
assertEquals(value.length(), longText.length());
assertEquals(value, longText.toString());
w.writeValue(longText);
w.writeValue(longText);
value = w.writeValuesToString().trim();
assertEquals(value.length(), longText.length() * 2 + 1);
assertEquals(value, longText.toString() + "," + longText.toString());
}