package org.erlide.util;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import org.erlide.util.erlang.OtpErlang;
import org.erlide.util.erlang.TermParserException;
import org.junit.Assert;
import org.junit.Test;
import com.ericsson.otp.erlang.OtpErlangBinary;
import com.ericsson.otp.erlang.OtpErlangObject;
import com.ericsson.otp.erlang.OtpErlangString;
import com.google.common.base.Charsets;
public class UtilTest {
@Test
public void normalizeSpaces_shouldKeepSingleSpaces() {
final String input = "a b c";
final String value = StringUtils.normalizeSpaces(input);
final String expected = "a b c";
assertEquals(value, expected);
}
@Test
public void normalizeSpaces_shouldCompressMultipleSpaces() {
final String input = "a b c";
final String value = StringUtils.normalizeSpaces(input);
final String expected = "a b c";
assertEquals(value, expected);
}
@Test
public void normalizeSpaces_shouldCompressTabs() {
final String input = "a\t\tb\tc";
final String value = StringUtils.normalizeSpaces(input);
final String expected = "a b c";
assertEquals(value, expected);
}
@Test
public void normalizeSpaces_shouldCompressNewlines() {
final String input = "a\r\nb\nc";
final String value = StringUtils.normalizeSpaces(input);
final String expected = "a b c";
assertEquals(value, expected);
}
@Test
public void normalizeSpaces_shouldCompressAll() {
final String input = "a\r\n\t b\n\t\t \tc";
final String value = StringUtils.normalizeSpaces(input);
final String expected = "a b c";
assertEquals(value, expected);
}
@Test
public void testIoListToString_small() {
final OtpErlangObject input = OtpErlang.mkList(new OtpErlangString("hej"),
new OtpErlangString("hoj"));
final String result = Util.ioListToString(input, 10);
final String expected = "hejhoj";
Assert.assertEquals(expected, result);
}
@Test
public void testIoListToString_large1() {
final OtpErlangObject input = OtpErlang.mkList(new OtpErlangString("hej"),
new OtpErlangString("hoj"));
final String result = Util.ioListToString(input, 4);
final String expected = "hejh... <truncated>";
Assert.assertEquals(expected, result);
}
@Test
public void testIoListToString_large2() {
final OtpErlangObject input = OtpErlang.mkList(new OtpErlangString("hej"),
new OtpErlangString("hoj"));
final String result = Util.ioListToString(input, 6);
final String expected = "hejhoj";
Assert.assertEquals(expected, result);
}
@Test
public void testIsTag_number() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("3");
Assert.assertEquals(false, Util.isTag(input, "ok"));
}
@Test
public void testIsTag_good_atom() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("ok");
Assert.assertEquals(true, Util.isTag(input, "ok"));
}
@Test
public void testIsTag_wrong_atom() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("okx");
Assert.assertEquals(false, Util.isTag(input, "ok"));
}
@Test
public void testIsTag_tuple_int() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("{3,9}");
Assert.assertEquals(false, Util.isTag(input, "ok"));
}
@Test
public void testIsTag_tuple_good_atom() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("{ok, 9}");
Assert.assertEquals(true, Util.isTag(input, "ok"));
}
@Test
public void testIsTag_tuple_wrong_atom() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("{okx, 9}");
Assert.assertEquals(false, Util.isTag(input, "ok"));
}
@Test
public void stringValue_1() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("\"a string\"");
final String expected = "a string";
final String actual = Util.stringValue(input);
Assert.assertEquals(expected, actual);
}
@Test
public void stringValue_2() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("[]");
final String expected = "";
final String actual = Util.stringValue(input);
Assert.assertEquals(expected, actual);
}
@Test
public void stringValue_3() throws TermParserException {
final OtpErlangObject input = OtpErlang.getTermParser().parse("[51,52,53]");
final String expected = "345";
final String actual = Util.stringValue(input);
Assert.assertEquals(expected, actual);
}
@Test
public void stringValue_4() {
final OtpErlangObject input = new OtpErlangBinary(new byte[] { 51, 52, 53 });
final String expected = "345";
final String actual = Util.stringValue(input);
Assert.assertEquals(expected, actual);
}
@Test
public void stringValue_5() {
final byte[] bytes = new byte[] { 197 - 256, 246 - 256 };
final OtpErlangObject input = new OtpErlangBinary(bytes);
final byte[] expected = bytes;
final String actual = Util.stringValue(input);
assertThat(actual.getBytes(Charsets.ISO_8859_1), is(expected));
}
@Test
public void stringValue_6() {
final byte[] bytes = new byte[] { (byte) 0xE8, (byte) 0x8F, (byte) 0xAF };
final OtpErlangObject input = new OtpErlangBinary(bytes);
final byte[] expected = bytes;
final String actual = Util.stringValue(input);
assertThat(actual.getBytes(Charsets.UTF_8), is(expected));
}
@Test
public void extractLastName_1() {
final String actual = Util.extractLastName("aaa.ddd.ccc");
final String expected = "ccc";
assertEquals(expected, actual);
}
@Test
public void extractLastName_2() {
final String actual = Util.extractLastName("ccc");
final String expected = "ccc";
assertEquals(expected, actual);
}
}