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// BooleanTest.cs - NUnit Test Cases for the System.Double class
//
// Bob Doan <bdoan@sicompos.com>
//
// (C) Ximian, Inc. http://www.ximian.com
//
using NUnit.Framework;
using System;
using System.Globalization;
namespace MonoTests.System
{
public class DoubleTest : TestCase
{
private const Double d_zero = 0.0;
private const Double d_neg = -1234.5678;
private const Double d_pos = 1234.9999;
private const Double d_pos2 = 1234.9999;
private const Double d_nan = Double.NaN;
private const Double d_pinf = Double.PositiveInfinity;
private const Double d_ninf = Double.NegativeInfinity;
private const String s = "What Ever";
private NumberFormatInfo Nfi = NumberFormatInfo.InvariantInfo;
private string[] string_values = {
"1", ".1", "1.1", "-12", "44.444432", ".000021121",
" .00001", " .223 ", " -221.3233",
" 1.7976931348623157e308 ", "+1.7976931348623157E308", "-1.7976931348623157e308",
"4.9406564584124650e-324",
"6.28318530717958647692528676655900577",
"1e-05",
};
private double[] double_values = {
1, .1, 1.1, -12, 44.444432, .000021121,
.00001, .223, -221.3233,
1.7976931348623157e308, 1.7976931348623157e308, -1.7976931348623157e308,
4.9406564584124650e-324,
6.28318530717958647692528676655900577,
1e-05
};
public DoubleTest () : base ("MonoTests.System.DoubleTests testcase") {}
public DoubleTest (string name) : base (name) {}
protected override void SetUp ()
{
}
public static ITest Suite {
get {
return new TestSuite (typeof (DoubleTest));
}
}
public void TestPublicFields ()
{
AssertEquals("Epsilon Field has wrong value", 3.9406564584124654e-324, Double.Epsilon);
AssertEquals("MaxValue Field has wrong value", 1.7976931348623157e+308, Double.MaxValue);
AssertEquals("MinValue Field has wrong value", -1.7976931348623157e+308, Double.MinValue);
AssertEquals("NegativeInfinity Field has wrong value", (double)-1.0 / (double)(0.0), Double.NegativeInfinity);
AssertEquals("PositiveInfinity Field has wrong value", (double)1.0 / (double)(0.0), Double.PositiveInfinity);
}
public void TestCompareTo () {
//If you do int foo = d_ninf.CompareTo(d_pinf); Assert(".." foo < 0, true) this works.... WHY???
AssertEquals("CompareTo Infinity failed", d_ninf.CompareTo(d_pinf) < 0, true);
AssertEquals("CompareTo Failed01", d_neg.CompareTo(d_pos) < 0, true);
AssertEquals("CompareTo NaN Failed", d_nan.CompareTo(d_neg) < 0, true);
AssertEquals("CompareTo Failed02", 0, d_pos.CompareTo(d_pos2));
AssertEquals("CompareTo Failed03", 0, d_pinf.CompareTo(d_pinf));
AssertEquals("CompareTo Failed04", 0, d_ninf.CompareTo(d_ninf));
AssertEquals("CompareTo Failed05", 0, d_nan.CompareTo(d_nan));
Assert("CompareTo Failed06", d_pos.CompareTo(d_neg) > 0);
Assert("CompareTo Failed07", d_pos.CompareTo(d_nan) > 0);
Assert("CompareTo Failed08", d_pos.CompareTo(null) > 0);
try {
d_pos.CompareTo(s);
Fail("CompareTo should raise a System.ArgumentException");
}
catch (Exception e) {
Assert("CompareTo should be a System.ArgumentException", typeof(ArgumentException) == e.GetType());
}
}
public void TestEquals () {
AssertEquals("Equals Failed", true, d_pos.Equals(d_pos2));
AssertEquals("Equals Failed", false, d_pos.Equals(d_neg));
AssertEquals("Equals Failed", false, d_pos.Equals(s));
}
public void TestTypeCode () {
AssertEquals("GetTypeCode Failed", TypeCode.Double, d_pos.GetTypeCode());
}
public void TestIsInfinity() {
AssertEquals("IsInfinity Failed", true, Double.IsInfinity(Double.PositiveInfinity));
AssertEquals("IsInfinity Failed", true, Double.IsInfinity(Double.NegativeInfinity));
AssertEquals("IsInfinity Failed", false, Double.IsInfinity(12));
}
public void TestIsNan() {
AssertEquals("IsNan Failed", true, Double.IsNaN(Double.NaN));
AssertEquals("IsNan Failed", false, Double.IsNaN(12));
AssertEquals("IsNan Failed", false, Double.IsNaN(Double.PositiveInfinity));
}
public void TestIsNegativeInfinity() {
AssertEquals("IsNegativeInfinity Failed", true, Double.IsNegativeInfinity(Double.NegativeInfinity));
AssertEquals("IsNegativeInfinity Failed", false, Double.IsNegativeInfinity(12));
}
public void TestIsPositiveInfinity() {
AssertEquals("IsPositiveInfinity Failed", true, Double.IsPositiveInfinity(Double.PositiveInfinity));
AssertEquals("IsPositiveInfinity Failed", false, Double.IsPositiveInfinity(12));
}
public void TestParse() {
int i=0;
try {
for(i=0;i<string_values.Length;i++) {
AssertEquals("Parse Failed", double_values[i], Double.Parse(string_values[i]));
}
} catch (Exception e) {
Fail("TestParse: i=" + i + " failed with e = " + e.ToString());
}
try {
AssertEquals("Parse Failed NumberStyles.Float", 10.1111, Double.Parse(" 10.1111 ", NumberStyles.Float, Nfi));
} catch (Exception e) {
Fail("TestParse: Parse Failed NumberStyles.Float with e = " + e.ToString());
}
try {
AssertEquals("Parse Failed NumberStyles.AllowThousands", 1234.5678, Double.Parse("1,234.5678", NumberStyles.Float | NumberStyles.AllowThousands, Nfi));
} catch (Exception e) {
Fail("TestParse: Parse Failed NumberStyles.AllowThousands with e = " + e.ToString());
}
try {
Double.Parse(null);
Fail("Parse should raise a ArgumentNullException");
}
catch (Exception e) {
Assert("Parse should be a ArgumentNullException", typeof(ArgumentNullException) == e.GetType());
}
try {
Double.Parse("save the elk");
Fail("Parse should raise a FormatException");
}
catch (Exception e) {
Assert("Parse should be a FormatException", typeof(FormatException) == e.GetType());
}
double ovf_plus = 0;
try {
ovf_plus = Double.Parse("1.79769313486232e308");
Fail("Parse should have raised an OverflowException +");
}
catch (Exception e) {
AssertEquals("Should be an OverflowException + for " + ovf_plus, typeof(OverflowException), e.GetType());
}
try {
Double.Parse("-1.79769313486232e308");
Fail("Parse should have raised an OverflowException -");
}
catch (Exception e) {
AssertEquals("Should be an OverflowException -", typeof(OverflowException), e.GetType());
}
}
public void TestToString() {
//ToString is not yet Implemented......
//AssertEquals("ToString Failed", "1234.9999", d_pos.ToString());
}
}
}
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