package com.alibaba.fastjson.parser;

import com.alibaba.fastjson.JSONException;
import org.junit.Assert;
import org.junit.Test;


public class JSONScannerTest2 {
  @Test
  public void stringUtf8BomTest() throws Throwable {
    JSONScanner scanner = new JSONScanner("\uFEFF,");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertEquals(JSONToken.COMMA, scanner.token());
  }

  @Test
  public void stringHasSpecialTest() throws Throwable {
    JSONScanner scanner = new JSONScanner("\"\\b\\n\\t\\\"\\uABED\"");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertEquals(JSONToken.LITERAL_STRING, scanner.token());
    Assert.assertEquals("\b\n\t\"\uABED", scanner.stringVal());
  }

  @Test
  public void stringWithIso8601Date() throws Throwable {
    JSONScanner scanner = new JSONScanner("2012-04-23T18:25:43.511Z");
    // After construction the UTF-8 BOM should be safely skipped
    Assert.assertTrue(scanner.scanISO8601DateIfMatch());
  }

  @Test
  public void scanSingleComment() throws Throwable {
    JSONScanner scanner = new JSONScanner("//dsajfklsjfk");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertTrue(scanner.isEOF());
  }

  @Test
  public void scanMultiComment() throws Throwable {
    JSONScanner scanner = new JSONScanner("/*dsajfklsjfk*/");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertTrue(scanner.isEOF());
  }

  @Test
  public void scannerSkipWhitespace() throws Throwable {
    JSONScanner scanner = new JSONScanner("\n\t\t   \r\b\f232");
    scanner.nextToken();
    Assert.assertEquals(JSONToken.LITERAL_INT, scanner.token());
    Assert.assertEquals(232, scanner.intValue());
  }

  @Test
  public void inputTokenTest_Null() throws Throwable {
    JSONScanner scanner = new JSONScanner("null");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertEquals(JSONToken.NULL, scanner.token());
  }

  @Test
  public void inputTokenTest_Undefined() throws Throwable {
    JSONScanner scanner = new JSONScanner("undefined");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertEquals(JSONToken.UNDEFINED, scanner.token());
  }

  @Test
  public void inputTokenTest_Undefined() throws Throwable {
    JSONScanner scanner = new JSONScanner("undefined");
    // After construction the UTF-8 BOM should be safely skipped
    scanner.nextToken();
    Assert.assertEquals(JSONToken.UNDEFINED, scanner.token());
  }

  @Test
  public void inputTokenTest_ExplPosInt() throws Throwable {
    JSONScanner scanner = new JSONScanner("+7531"); // explicit positive with sign
    scanner.nextToken();
    Assert.assertEquals(JSONToken.LITERAL_INT, scanner.token());
    Assert.assertEquals(7531, scanner.intValue());
  }
}