@Test(expected = IllegalArgumentException.class)
public void readEntries_shouldRejectAListForWhichAnElementContainsInvalidCharacters() {
final List<String> lines = new ArrayList<String>();
for (int i = 0; i < 4; i++) {
lines.add(" _ | | _ | | _ | | _ | | _1");
}
cut.readEntries(lines);
}
@Test(expected = IllegalArgumentException.class)
public void readEntries_shouldRejectAListWhichDoesNotContainAMultipleOfFourLines() {
final List<String> lines = new ArrayList<String>();
for (int i = 0; i < 3; i++) {
lines.add("");
}
cut.readEntries(lines);
}
@Test
public void readEntries_shouldAcceptAListOfStringValues() {
final List<String> lines = new ArrayList<String>();
for (int i = 0; i < 4; i++) {
lines.add(" _ | | _ | | _ | | _ | | _ ");
}
cut.readEntries(lines);
}
@Test(expected = IllegalArgumentException.class)
public void
readEntries_shouldRejectAListForWhichEachElementDoesNotContainTwentySevenCharacters() {
final List<String> lines = new ArrayList<String>();
for (int i = 0; i < 4; i++) {
lines.add("12345678901234567890123456");
}
cut.readEntries(lines);
}
@Test
public void readEntries_shouldSeparateLinesIntoAListOfEntries() {
final String testLine = " _ | | _ | | _ | | _ | | _ ";
final List<String> testLines = new ArrayList<String>();
for (int i = 0; i < 4; i++) {
testLines.add(testLine);
}
final List<Entry> result = cut.readEntries(testLines);
assertThat(result.size(), is(1));
final Entry entry = result.iterator().next();
assertThat(entry.getLines().size(), is(4));
for (final String line : entry.getLines()) {
assertThat(line, is(testLine));
}
}
@Test(expected = IllegalArgumentException.class)
public void readEntries_shouldRejectAnEmptyList() {
final List<String> lines = new ArrayList<String>();
cut.readEntries(lines);
}
@Test(expected = IllegalArgumentException.class)
public void readEntries_shouldRejectANullValuedList() {
cut.readEntries(null);
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedAnEmptyString() throws Exception {
cut.readFile("");
}
@Test
public void main_shouldWriteToDefaultFileWhenPassedOneInput() throws Exception {
BankOcr.main(new String[] {"src/test/java/.test"});
assertThat(readFile("output.txt"), is(testFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void main_shouldFailWhenPassedAnEmptyArray() throws Exception {
BankOcr.main(new String[0]);
}
@Test(expected = IllegalArgumentException.class)
public void main_shouldFailWhenPassedNull() throws Exception {
BankOcr.main(null);
}
@Test
public void parseFile_shouldReturnAListOfStringsContainingTheParsedDigits() throws Exception {
final List<String> results = cut.parseFile("src/test/java/.test");
assertThat(results, is(testFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldThrowIllegalArgumentExceptionWhenFileDoesNotExist() throws Exception {
cut.readFile("not/a/real/.file");
}
@Test
public void readFile_shouldIgnoreLeadingAndTrailingWhitespaceInFilenameParameter()
throws Exception {
assertThat(cut.readFile(" src/test/java/.test "), is(testRawFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedAStringContainingOnlyWhitespace() throws Exception {
cut.readFile(" ");
}
@Test
public void main_shouldWriteToSpecifiedFileWhenPassedTwoInputs() throws Exception {
BankOcr.main(new String[] {"src/test/java/.test", "test.output"});
assertThat(readFile("test.output"), is(testFileLines()));
}
@Test
public void readFile_shouldReadAllLinesFromTheGivenFile() throws Exception {
assertThat(cut.readFile("src/test/java/.test"), is(testRawFileLines()));
}
@Test(expected = IllegalArgumentException.class)
public void readFile_shouldFailWhenPassedNull() throws Exception {
cut.readFile(null);
}