public void DashSingleLineComment()
{
string comment = "-- this is my comment\r\n";
string sql = String.Format("SELECT {0} * FROM Test", comment);
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = true;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual(comment, tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = false;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void AnsiQuotes()
{
string sql = "SELECT 'a', \"a\", `a`";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.AnsiQuotes = false;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("'a'", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("\"a\"", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("`a`", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
Assert.IsNull(tokenizer.NextToken());
}
public void MultiLineComment()
{
string comment = "/* this is my comment \r\n lines 2 \r\n line 3*/";
string sql = String.Format("SELECT{0} * FROM Test", comment);
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = true;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual(comment.Trim(), tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = false;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void SqlServerMode()
{
string sql = "SELECT `a`, [id], [name] FROM [test]";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.SqlServerMode = true;
tokenizer.NextToken();
Assert.AreEqual("`a`", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
tokenizer.NextToken(); // read ,
Assert.AreEqual("[id]", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
tokenizer.NextToken(); // read ,
Assert.AreEqual("[name]", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
tokenizer.NextToken(); // read FROM
Assert.AreEqual("[test]", tokenizer.NextToken());
Assert.IsTrue(tokenizer.Quoted);
}
public void UserVariable()
{
string sql = "SELECT 'a', 1, @@myVar";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = false;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("'a'", tokenizer.NextToken());
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("1", tokenizer.NextToken());
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("@@myVar", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void Slash()
{
string sql = "AND // OR";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.AnsiQuotes = false;
Assert.AreEqual("AND", tokenizer.NextToken());
Assert.AreEqual("/", tokenizer.NextToken());
Assert.AreEqual("/", tokenizer.NextToken());
Assert.AreEqual("OR", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void StringLiteral()
{
string sql = "SELECT 'a', 1, 'b'";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = false;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("'a'", tokenizer.NextToken());
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("1", tokenizer.NextToken());
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("'b'", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void Simple()
{
SqlTokenizer tokenizer = new SqlTokenizer("SELECT * FROM Test");
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void ParseProcBody()
{
string sql = "CREATE PROCEDURE spTest(testid INT, testname VARCHAR(20)) BEGIN SELECT 1; END";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.AnsiQuotes = false;
Assert.AreEqual("CREATE", tokenizer.NextToken());
Assert.AreEqual("PROCEDURE", tokenizer.NextToken());
Assert.AreEqual("spTest", tokenizer.NextToken());
Assert.AreEqual("(", tokenizer.NextToken());
Assert.AreEqual("testid", tokenizer.NextToken());
Assert.AreEqual("INT", tokenizer.NextToken());
Assert.AreEqual(",", tokenizer.NextToken());
Assert.AreEqual("testname", tokenizer.NextToken());
Assert.AreEqual("VARCHAR", tokenizer.NextToken());
Assert.AreEqual("(", tokenizer.NextToken());
Assert.AreEqual("20", tokenizer.NextToken());
Assert.AreEqual(")", tokenizer.NextToken());
Assert.AreEqual(")", tokenizer.NextToken());
Assert.AreEqual("BEGIN", tokenizer.NextToken());
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("1", tokenizer.NextToken());
Assert.AreEqual(";", tokenizer.NextToken());
Assert.AreEqual("END", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void ParameterWithSpecialCharacters()
{
string sql = "SELECT * FROM Test WHERE id=@id_$123";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = true;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.AreEqual("WHERE", tokenizer.NextToken());
Assert.AreEqual("id", tokenizer.NextToken());
Assert.AreEqual("=", tokenizer.NextToken());
Assert.AreEqual("@id_$123", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}
public void Parameter()
{
string sql = "SELECT * FROM Test WHERE id=@id AND id2=?id2";
SqlTokenizer tokenizer = new SqlTokenizer(sql);
tokenizer.ReturnComments = true;
Assert.AreEqual("SELECT", tokenizer.NextToken());
Assert.AreEqual("*", tokenizer.NextToken());
Assert.AreEqual("FROM", tokenizer.NextToken());
Assert.AreEqual("Test", tokenizer.NextToken());
Assert.AreEqual("WHERE", tokenizer.NextToken());
Assert.AreEqual("id", tokenizer.NextToken());
Assert.AreEqual("=", tokenizer.NextToken());
Assert.AreEqual("@id", tokenizer.NextToken());
Assert.AreEqual("AND", tokenizer.NextToken());
Assert.AreEqual("id2", tokenizer.NextToken());
Assert.AreEqual("=", tokenizer.NextToken());
Assert.AreEqual("?id2", tokenizer.NextToken());
Assert.IsNull(tokenizer.NextToken());
}