public virtual void Double_value_comparer_handles_NaN()
{
var typeMapping = new DoubleTypeMapping("double precision", DbType.Double);
Assert.True(typeMapping.Comparer.Equals(3.0, 3.0));
Assert.True(typeMapping.Comparer.Equals(double.NaN, double.NaN));
Assert.False(typeMapping.Comparer.Equals(3.0, double.NaN));
}
public virtual void GenerateSqlLiteral_for_Double_works_for_range_limits()
{
var typeMapping = new DoubleTypeMapping("double", DbType.Double);
var literal = typeMapping.GenerateSqlLiteral(double.MinValue);
Assert.Equal("-1.7976931348623157E+308", literal);
literal = typeMapping.GenerateSqlLiteral(double.MaxValue);
Assert.Equal("1.7976931348623157E+308", literal);
}
public virtual void Double_literal_generated_correctly()
{
var typeMapping = new DoubleTypeMapping("double", DbType.Double);
Test_GenerateSqlLiteral_helper(typeMapping, double.NaN, "NaN");
Test_GenerateSqlLiteral_helper(typeMapping, double.PositiveInfinity, "Infinity");
Test_GenerateSqlLiteral_helper(typeMapping, double.NegativeInfinity, "-Infinity");
Test_GenerateSqlLiteral_helper(typeMapping, double.MinValue, "-1.7976931348623157E+308");
Test_GenerateSqlLiteral_helper(typeMapping, double.MaxValue, "1.7976931348623157E+308");
}
public virtual void GenerateSqlLiteral_for_Double_works_for_special_values()
{
var typeMapping = new DoubleTypeMapping("double", DbType.Double);
var literal = typeMapping.GenerateSqlLiteral(double.NaN);
Assert.Equal("NaN", literal);
literal = typeMapping.GenerateSqlLiteral(double.PositiveInfinity);
Assert.Equal("Infinity", literal);
literal = typeMapping.GenerateSqlLiteral(double.NegativeInfinity);
Assert.Equal("-Infinity", literal);
}
