private void assertErrorContains(boolean squareTags, String ftl, String... expectedSubstrings) {
try {
if (squareTags) {
ftl = ftl.replace('<', '[').replace('>', ']');
}
new Template("adhoc", ftl, cfg);
fail("The tempalte had to fail");
} catch (ParseException e) {
String msg = e.getMessage();
for (String needle : expectedSubstrings) {
if (needle.startsWith("\\!")) {
String netNeedle = needle.substring(2);
if (msg.contains(netNeedle)) {
fail(
"The message shouldn't contain substring "
+ StringUtil.jQuote(netNeedle)
+ ":\n"
+ msg);
}
} else if (!msg.contains(needle)) {
fail("The message didn't contain substring " + StringUtil.jQuote(needle) + ":\n" + msg);
}
}
showError(e);
} catch (IOException e) {
// Won't happen
throw new RuntimeException(e);
}
}
private static void assertParseException(int offset, String message, final String json) {
ParseException exception =
assertException(
ParseException.class,
new Runnable() {
public void run() {
parse(json);
}
});
assertEquals(offset, exception.getOffset());
assertThat(exception.getMessage(), StringStartsWith.startsWith(message + " at"));
}
private static void assertParseException(int offset, int line, int column, final String json) {
ParseException exception =
assertException(
ParseException.class,
new Runnable() {
public void run() {
parse(json);
}
});
assertEquals("offset", offset, exception.getOffset());
assertEquals("line", line, exception.getLine());
assertEquals("column", column, exception.getColumn());
}
@Test
public void parse_rejectsEmptyReader() {
ParseException exception =
assertException(
ParseException.class,
new Runnable() {
public void run() {
try {
new JsonParser(new StringReader("")).parse();
} catch (IOException exception) {
throw new RuntimeException(exception);
}
}
});
assertEquals(0, exception.getOffset());
assertThat(exception.getMessage(), StringStartsWith.startsWith("Unexpected end of input at"));
}
@Test
public void parse_handlesPositionsCorrectlyWhenInputExceedsBufferSize() {
final String input = "{\n \"a\": 23,\n \"b\": 42,\n}";
ParseException exception =
assertException(
ParseException.class,
new Runnable() {
public void run() {
try {
new JsonParser(new StringReader(input), 3).parse();
} catch (IOException e) {
}
}
});
assertEquals(4, exception.getLine());
assertEquals(0, exception.getColumn());
assertEquals(24, exception.getOffset());
}