public static void TestStringEqualRoundTrip(ERational obj)
{
string str = obj.ToString();
ERational newobj = ERational.FromString(str);
string str2 = newobj.ToString();
TestCommon.AssertEqualsHashCode(obj, newobj);
TestCommon.AssertEqualsHashCode(str, str2);
}
public void TestEquals()
{
ERational era = ERational.FromString("0/3920");
ERational erb = ERational.FromString("0/3920");
TestCommon.CompareTestEqualAndConsistent(
era,
erb);
}
public void TestToString()
{
var fr = new RandomGenerator();
ERational dec;
for (var i = 0; i < 1000; ++i)
{
dec = RandomObjects.RandomERational(fr);
ExtraTest.TestStringEqualRoundTrip(dec);
}
dec = ERational.FromString("-0/500");
ExtraTest.TestStringEqualRoundTrip(dec);
}
public static void TestStringEqualRoundTrip(ERational obj)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
string str = obj.ToString();
ERational newobj = ERational.FromString(str);
if (str.Length < 100 || !obj.Equals(newobj))
{
TestCommon.AssertEqualsHashCode(obj, newobj);
string str2 = newobj.ToString();
TestCommon.AssertEqualsHashCode(str, str2);
}
}
public void TestConversions()
{
var fr = new RandomGenerator();
for (var i = 0; i < 20000; ++i)
{
bool isNum, isTruncated, isInteger;
EInteger eint;
ERational enumber = RandomObjects.RandomERational(fr);
if (!enumber.IsFinite)
{
try {
enumber.ToByteChecked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
Assert.AreEqual(
EInteger.Zero,
EInteger.FromByte(enumber.ToByteUnchecked()));
try {
enumber.ToByteIfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt16Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
Assert.AreEqual(
EInteger.Zero,
EInteger.FromInt16(enumber.ToInt16Unchecked()));
try {
enumber.ToInt16IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt32Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
Assert.AreEqual(
EInteger.Zero,
EInteger.FromInt32(enumber.ToInt32Unchecked()));
try {
enumber.ToInt32IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt64Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
Assert.AreEqual(
EInteger.Zero,
EInteger.FromInt64(enumber.ToInt64Unchecked()));
try {
enumber.ToInt64IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
continue;
}
ERational enumberInteger = ERational.FromEInteger(enumber.ToEInteger());
isInteger = enumberInteger.CompareTo(enumber) == 0;
eint = enumber.ToEInteger();
isNum = enumber.CompareTo(
ERational.FromString("0")) >= 0 && enumber.CompareTo(
ERational.FromString("255")) <= 0;
isTruncated = enumber.ToEInteger().CompareTo(
EInteger.FromString("0")) >= 0 && enumber.ToEInteger().CompareTo(
EInteger.FromString("255")) <= 0;
if (isNum)
{
TestCommon.AssertEquals(
eint,
EInteger.FromByte(enumber.ToByteChecked()));
TestCommon.AssertEquals(
eint,
EInteger.FromByte(enumber.ToByteUnchecked()));
if (isInteger)
{
TestCommon.AssertEquals(
eint,
EInteger.FromByte(enumber.ToByteIfExact()));
}
else
{
try {
enumber.ToByteIfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
else if (isTruncated)
{
TestCommon.AssertEquals(
eint,
EInteger.FromByte(enumber.ToByteChecked()));
TestCommon.AssertEquals(
eint,
EInteger.FromByte(enumber.ToByteUnchecked()));
try {
enumber.ToByteIfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToByteChecked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToByteUnchecked();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
if (isInteger)
{
try {
enumber.ToByteIfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToByteIfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
isNum = enumber.CompareTo(
ERational.FromString("-32768")) >= 0 && enumber.CompareTo(
ERational.FromString("32767")) <= 0;
isTruncated = enumber.ToEInteger().CompareTo(
EInteger.FromString("-32768")) >= 0 && enumber.ToEInteger().CompareTo(
EInteger.FromString("32767")) <= 0;
if (isNum)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt16(enumber.ToInt16Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt16(enumber.ToInt16Unchecked()));
if (isInteger)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt16(enumber.ToInt16IfExact()));
}
else
{
try {
enumber.ToInt16IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
else if (isTruncated)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt16(enumber.ToInt16Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt16(enumber.ToInt16Unchecked()));
try {
enumber.ToInt16IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt16Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt16Unchecked();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
if (isInteger)
{
try {
enumber.ToInt16IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt16IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
isNum = enumber.CompareTo(
ERational.FromString("-2147483648")) >= 0 && enumber.CompareTo(
ERational.FromString("2147483647")) <= 0;
isTruncated = enumber.ToEInteger().CompareTo(
EInteger.FromString("-2147483648")) >= 0 &&
enumber.ToEInteger().CompareTo(
EInteger.FromString("2147483647")) <= 0;
if (isNum)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt32(enumber.ToInt32Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt32(enumber.ToInt32Unchecked()));
if (isInteger)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt32(enumber.ToInt32IfExact()));
}
else
{
try {
enumber.ToInt32IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
else if (isTruncated)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt32(enumber.ToInt32Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt32(enumber.ToInt32Unchecked()));
try {
enumber.ToInt32IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt32Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt32Unchecked();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
if (isInteger)
{
try {
enumber.ToInt32IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt32IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
isNum = enumber.CompareTo(
ERational.FromString("-9223372036854775808")) >= 0 && enumber.CompareTo(
ERational.FromString("9223372036854775807")) <= 0;
isTruncated = enumber.ToEInteger().CompareTo(
EInteger.FromString("-9223372036854775808")) >= 0 &&
enumber.ToEInteger().CompareTo(
EInteger.FromString("9223372036854775807")) <= 0;
if (isNum)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt64(enumber.ToInt64Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt64(enumber.ToInt64Unchecked()));
if (isInteger)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt64(enumber.ToInt64IfExact()));
}
else
{
try {
enumber.ToInt64IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
else if (isTruncated)
{
TestCommon.AssertEquals(
eint,
EInteger.FromInt64(enumber.ToInt64Checked()));
TestCommon.AssertEquals(
eint,
EInteger.FromInt64(enumber.ToInt64Unchecked()));
try {
enumber.ToInt64IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt64Checked();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
enumber.ToInt64Unchecked();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
if (isInteger)
{
try {
enumber.ToInt64IfExact();
Assert.Fail("Should have failed");
} catch (OverflowException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
else
{
try {
enumber.ToInt64IfExact();
Assert.Fail("Should have failed");
} catch (ArithmeticException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
}
}
}
}
public void TestFromString()
{
ERational er;
er = ERational.FromString("-2/4");
Assert.AreEqual(EInteger.FromInt32(-2), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(4), er.Denominator);
er = ERational.FromString("2/4");
Assert.AreEqual(EInteger.FromInt32(2), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(4), er.Denominator);
er = ERational.FromString("293939393939/4");
Assert.AreEqual(EInteger.FromString("293939393939"), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(4), er.Denominator);
er = ERational.FromString("-293939393939/4");
Assert.AreEqual(EInteger.FromString("-293939393939"), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(4), er.Denominator);
er = ERational.FromString("-2/293939393939");
Assert.AreEqual(EInteger.FromInt32(-2), er.Numerator);
Assert.AreEqual(EInteger.FromString("293939393939"), er.Denominator);
er = ERational.FromString("-2");
Assert.AreEqual(EInteger.FromString("-2"), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(1), er.Denominator);
er = ERational.FromString("2");
Assert.AreEqual(EInteger.FromString("2"), er.Numerator);
Assert.AreEqual(EInteger.FromInt32(1), er.Denominator);
try {
ERational.FromString("-2x");
Assert.Fail("Should have failed");
} catch (FormatException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
ERational.FromString("-2/");
Assert.Fail("Should have failed");
} catch (FormatException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
ERational.FromString("-2/x");
Assert.Fail("Should have failed");
} catch (FormatException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
try {
ERational.FromString("-2/2x");
Assert.Fail("Should have failed");
} catch (FormatException) {
new Object();
} catch (Exception ex) {
Assert.Fail(ex.ToString());
throw new InvalidOperationException(String.Empty, ex);
}
var fr = new RandomGenerator();
for (var i = 0; i < 1000; ++i)
{
EInteger ei1 = RandomObjects.RandomEInteger(fr);
EInteger ei2 = RandomObjects.RandomEInteger(fr).Abs();
if (ei2.IsZero)
{
ei2 = EInteger.One;
}
er = ERational.FromString(ei1 + "/" + ei2);
Assert.AreEqual(ei1, er.Numerator);
Assert.AreEqual(ei2, er.Denominator);
}
}
