transcendental-lisp/test/scanner/LispScannerTextTester.java

111 lines
3.0 KiB
Java

package scanner;
import static org.junit.Assert.assertEquals;
import static testutil.TestUtilities.createInputStreamFromString;
import java.io.InputStream;
import org.junit.Test;
import file.FilePosition;
public class LispScannerTextTester {
private void assertTokenTextMatches(String input, String[] expectedTextList) {
LispScanner lispScanner = createLispScanner(input);
for (String expectedText : expectedTextList)
assertEquals(expectedText, lispScanner.getNextToken().getText());
}
private void assertTokenTextMatches(String input, String expectedText) {
LispScanner lispScanner = createLispScanner(input);
assertEquals(expectedText, lispScanner.getNextToken().getText());
}
private LispScanner createLispScanner(String input) {
InputStream stringInputStream = createInputStreamFromString(input);
return new LispScanner(stringInputStream, "testFile");
}
private void assertInputFileNameMatches(String input, String expectedInputFileName) {
InputStream stringInputStream = createInputStreamFromString(input);
LispScanner lispScanner = new LispScanner(stringInputStream, expectedInputFileName);
FilePosition tokenPosition = lispScanner.getNextToken().getPosition();
assertEquals(expectedInputFileName, tokenPosition.getFileName());
}
@Test
public void givenEmptyStream_RecordsCorrectFileName() {
String input = "";
String expectedFileName = "testFileName";
assertInputFileNameMatches(input, expectedFileName);
}
@Test
public void givenParenthesis_RecordsCorrectText() {
String input = "()";
String[] expected = { "(", ")" };
assertTokenTextMatches(input, expected);
}
@Test
public void givenQuote_RecordsCorrectText() {
String input = "'";
String expected = "'";
assertTokenTextMatches(input, expected);
}
@Test
public void givenEOF_ReordsCorrectText() {
String input = "";
String expected = "EOF";
assertTokenTextMatches(input, expected);
}
@Test
public void givenIdentifier_RecordsCorrectText() {
String input = "identifier";
assertTokenTextMatches(input, input);
}
@Test
public void givenNumber_RecordsCorrectText() {
String input = "192837456";
assertTokenTextMatches(input, input);
}
@Test
public void givenString_RecordsCorrectText() {
String input = "\"String!!! \n More... \"";
assertTokenTextMatches(input, input);
}
@Test
public void givenNumberFollowedByComment_RecordsCorrectText() {
String input = "192837456;comment";
String expected = "192837456";
assertTokenTextMatches(input, expected);
}
@Test
public void givenIdentifiersWithCommentBetween_RecordsCorrectText() {
String input = "abc123;comment\nabc222";
String[] expected = { "abc123", "abc222" };
assertTokenTextMatches(input, expected);
}
}