public void testGetStreamReturnsNewStream() throws Exception {
String testData = "There's something quite peaceful about writing tests.";
AttachmentId id = new AttachmentId("", "id_6");
AttachmentStore store = makeStoreWithData(id, testData);
AttachmentData data = store.getAttachment(id);
InputStream is1 = data.getInputStream();
InputStream is2 = data.getInputStream();
InputStream is3 = null;
try {
assertNotSame(is1, is2);
int firstByte = is1.read();
assertSame(firstByte, is2.read());
// Check that a new input stream created now still has the same first
// byte.
is3 = data.getInputStream();
assertSame(firstByte, is3.read());
} finally {
is1.close();
is2.close();
if (is3 != null) {
is3.close();
}
}
}
public void testContentLengthMatchesDataSize() throws Exception {
String testData = "blah blah blah";
AttachmentId id = new AttachmentId("", "id_2");
AttachmentStore store = makeStoreWithData(id, testData);
AttachmentData data = store.getAttachment(id);
assertEquals(testData.length(), data.getSize());
}
public void testAttachmentCanWriteToOutputStream() throws Exception {
String testData = "maybe there's some easy way to generate test strings";
AttachmentId id = new AttachmentId("", "id_4");
AttachmentStore store = makeStoreWithData(id, testData);
AttachmentData data = store.getAttachment(id);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
InputStream io = data.getInputStream();
try {
AttachmentUtil.writeTo(io, stream);
assertEquals(testData, stream.toString("UTF-8"));
} finally {
io.close();
}
}
protected String dataToString(AttachmentData data) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
InputStream io = data.getInputStream();
try {
AttachmentUtil.writeTo(io, out);
} finally {
io.close();
}
return out.toString("UTF-8");
}
public void testAttachmentHasWorkingInputStream() throws Exception {
String testData = "I suppose these strings don't actually need to be different";
AttachmentId id = new AttachmentId("", "id_5");
AttachmentStore store = makeStoreWithData(id, testData);
AttachmentData data = store.getAttachment(id);
BufferedReader reader = new BufferedReader(new InputStreamReader(data.getInputStream()));
StringBuilder builder = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
// This little snippet will discard any "\n" characters, but it shouldn't
// matter.
builder.append(line);
}
} finally {
reader.close();
}
assertEquals(testData, builder.toString());
}