private static string GetDump(WhereClauseMatcher matcher)
{
var sb = new StringBuilder();
matcher.DumpProgram(sb);
return(sb.ToString());
}
public void CanParentheses()
{
var values = new NamedValues();
values.AddValue("A", 3);
values.AddValue("B", 5);
var matcher = new WhereClauseMatcher("A=99 AND (B=4 OR B=5)");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("A=99 AND B=4 OR B=5");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("(A=3)");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("(((A=3)))");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
}
public void CanCompareAcrossNumericTypes()
{
var values = new NamedValues();
values.AddValue("short", (short)123);
values.AddValue("int", 123);
values.AddValue("long", (long)123);
values.AddValue("uint", (uint)123);
values.AddValue("float", (float)123.0);
values.AddValue("double", 123.0);
var matcher = new WhereClauseMatcher(
"short = 123 AND int = 123 AND long = 123 AND uint = 123 AND float = 123 AND double = 123");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("short = int AND int = long AND short = long");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("int = uint");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("float = 123 AND double = 123 AND float = double");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("short = float AND float = int AND int = double");
Assert.IsTrue(matcher.Match(values));
}
public void CanCompareEquality()
{
var values = new NamedValues();
var matcher = new WhereClauseMatcher("1=1");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("1.0=1.0");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("1 = 1.0");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("'abc' = 'abc'");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("'foo' = 'bar'");
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("FALSE=FALSE");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("FALSE= TRUE");
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("TRUE =FALSE");
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("TRUE = TRUE");
Assert.IsTrue(matcher.Match(values));
var m1 = new WhereClauseMatcher("0 = FALSE");
var ex = Assert.Catch(() => m1.Match(values));
Assert.IsNotNull(ex, "Expected exception not thrown");
Console.WriteLine(@"Clause ""{0}"" throws: {1}", matcher.Clause, ex.Message);
var m2 = new WhereClauseMatcher("1 = TRUE");
ex = Assert.Catch(() => m2.Match(values));
Assert.IsNotNull(ex, "Expected exception not thrown");
Console.WriteLine(@"Clause ""{0}"" throws: {1}", matcher.Clause, ex.Message);
var m3 = new WhereClauseMatcher("'false' = FALSE");
ex = Assert.Catch(() => m3.Match(values));
Assert.IsNotNull(ex, "Expected exception not thrown");
Console.WriteLine(@"Clause ""{0}"" throws: {1}", matcher.Clause, ex.Message);
var m4 = new WhereClauseMatcher("'false' <> FALSE");
ex = Assert.Catch(() => m4.Match(values));
Assert.IsNotNull(ex, "Expected exception not thrown");
Console.WriteLine(@"Clause ""{0}"" throws: {1}", matcher.Clause, ex.Message);
}
public void RegressionTestCOM264()
{
// https://issuetracker02.eggits.net/browse/COM-264 "RuleID_1 = 3" failed because of the underbar in "Rule_ID"
var values = new NamedValues();
values.AddValue("RuleID_1", 3);
var matcher = new WhereClauseMatcher("RuleID_1 = 3");
Assert.IsTrue(matcher.Match(values));
}
public void CanIsInAndNotIn()
{
var values = new NamedValues();
values.AddValue("x", 42);
var matcher = new WhereClauseMatcher("x IN (41, 42, 43)");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("x NOT IN (41, 42, 43)");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsFalse(matcher.Match(values));
}
public void CanMatchEmptyClause()
{
var values = new NamedValues();
// By convention, the empty clause matches everything:
var matcher = new WhereClauseMatcher(string.Empty);
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher(" \t \t\t\n ");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
}
public void BasicTests()
{
var values = new NamedValues();
values.AddValue("A", "a");
values.AddValue("B", "b");
values.AddValue("C", "c");
values.AddValue("ONE", 1);
values.AddValue("TWO", 2);
values.AddValue("PI", 3.14159);
values.AddValue("X", DBNull.Value);
values.AddValue("Y", null);
var matcher = new WhereClauseMatcher("ONE = 1");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("ONE = 1.0");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("PI = 3");
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("PI = 3.141591");
Assert.IsFalse(matcher.Match(values));
matcher = new WhereClauseMatcher("PI = 3.141590");
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("A in ('a','b')");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("A = 'x' AND NOT B IN ('a','b','c') OR A = 'a' AND B IS NOT NULL");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
// Treat both C# null and DBNull.Value as NULL:
Assert.IsTrue(new WhereClauseMatcher("X is NULL").Match(values));
Assert.IsTrue(new WhereClauseMatcher("Y is NULL").Match(values));
}
public void CanIsNullAndNotNull()
{
var values = new NamedValues();
values.AddValue("A", "abc");
values.AddValue("B", 1.23);
values.AddValue("C", 123);
values.AddValue("D", DBNull.Value);
values.AddValue("E", null);
Assert.IsFalse(new WhereClauseMatcher("A IS NULL").Match(values));
Assert.IsFalse(new WhereClauseMatcher("B IS NULL").Match(values));
Assert.IsFalse(new WhereClauseMatcher("C IS NULL").Match(values));
Assert.IsTrue(new WhereClauseMatcher("D IS NULL").Match(values));
Assert.IsTrue(new WhereClauseMatcher("E IS NULL").Match(values));
Assert.IsTrue(new WhereClauseMatcher("A IS NOT NULL").Match(values));
Assert.IsTrue(new WhereClauseMatcher("NOT A IS NULL").Match(values));
var matcher = new WhereClauseMatcher(
"A IS NOT NULL AND B IS NOT NULL AND C IS NOT NULL AND D IS NULL AND E IS NULL");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher(
"NOT A IS NULL AND NOT B IS NULL AND NOT C IS NULL AND NOT D IS NOT NULL AND NOT E IS NOT NULL");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsTrue(matcher.Match(values));
matcher = new WhereClauseMatcher("E = NULL");
Console.WriteLine(@"Clause: ""{0}""", matcher.Clause);
Console.WriteLine(@"Engine: {0}", GetDump(matcher));
Assert.IsFalse(matcher.Match(values));
}
