/** @tests java.io.BufferedWriter#newLine() */
public void test_newLine() throws Exception {
String separator = System.getProperty("line.separator");
bw.write("Hello");
bw.newLine();
bw.write("World");
bw.flush();
assertTrue(
"Incorrect string written: " + sw.toString(),
sw.toString().equals("Hello" + separator + "World"));
}
/** @tests java.io.BufferedWriter#close() */
public void test_close() throws IOException {
try {
bw.close();
bw.write(testString);
fail("Writing to a closed stream should throw IOException");
} catch (IOException e) {
// Expected
}
assertTrue("Write after close", !sw.toString().equals(testString));
// Regression test for HARMONY-4178
MockWriter mw = new MockWriter();
BufferedWriter bw = new BufferedWriter(mw);
bw.write('a');
bw.close();
// flush should not be called on underlying stream
assertFalse("Flush was called in the underlying stream", mw.isFlushCalled());
// on the other hand the BufferedWriter itself should flush the
// buffer
assertEquals("BufferdWriter do not flush itself before close", "a", mw.getWritten());
}
/** @tests java.io.BufferedWriter#BufferedWriter(java.io.Writer) */
public void test_ConstructorLjava_io_Writer() {
sw = new Support_StringWriter();
bw = new BufferedWriter(sw);
sw.write("Hi");
assertEquals("Constructor failed", "Hi", sw.toString());
}
/** @tests java.io.BufferedWriter#write(java.lang.String, int, int) */
public void test_writeLjava_lang_StringII() throws Exception {
bw.write(testString);
bw.flush();
assertTrue("Incorrect string written", sw.toString().equals(testString));
}
/** @tests java.io.BufferedWriter#write(int) */
public void test_writeI() throws Exception {
bw.write('T');
assertTrue("Char written without flush", sw.toString().equals(""));
bw.flush();
assertEquals("Incorrect char written", "T", sw.toString());
}
/** @tests java.io.BufferedWriter#write(char[], int, int) */
public void test_write$CII() throws Exception {
char[] testCharArray = testString.toCharArray();
bw.write(testCharArray, 500, 1000);
bw.flush();
assertTrue("Incorrect string written", sw.toString().equals(testString.substring(500, 1500)));
}
/** @tests java.io.BufferedWriter#flush() */
public void test_flush() throws Exception {
bw.write("This should not cause a flush");
assertTrue("Bytes written without flush", sw.toString().equals(""));
bw.flush();
assertEquals("Bytes not flushed", "This should not cause a flush", sw.toString());
}