/
StringTest.cs
4543 lines (3962 loc) · 157 KB
/
StringTest.cs
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// StringTest.cs - NUnit Test Cases for the System.String class
//
// Authors:
// Jeffrey Stedfast <fejj@ximian.com>
// David Brandt <bucky@keystreams.com>
// Kornel Pal <http://www.kornelpal.hu/>
//
// (C) Ximian, Inc. http://www.ximian.com
// Copyright (C) 2006 Kornel Pal
// Copyright (C) 2006 Novell (http://www.novell.com)
//
using System;
using System.Text;
using System.Globalization;
using System.Reflection;
using System.Threading;
using NUnit.Framework;
namespace MonoTests.System
{
[TestFixture]
public class StringTest
{
class NullFormatter : IFormatProvider, ICustomFormatter
{
public string Format (string format, object arg, IFormatProvider provider)
{
return null;
}
public object GetFormat (Type formatType)
{
return this;
}
}
class ToNullStringer
{
public override string ToString()
{
return null;
}
}
private CultureInfo orgCulture;
[SetUp]
public void SetUp ()
{
// save current culture
orgCulture = CultureInfo.CurrentCulture;
}
[TearDown]
public void TearDown ()
{
// restore original culture
Thread.CurrentThread.CurrentCulture = orgCulture;
}
[Test] // ctor (Char [])
public unsafe void Constructor2 ()
{
Assert.AreEqual (String.Empty, new String ((char[]) null), "#1");
Assert.AreEqual (String.Empty, new String (new Char [0]), "#2");
Assert.AreEqual ("A", new String (new Char [1] {'A'}), "#3");
}
[Test] // ctor (Char, Int32)
public void Constructor4 ()
{
Assert.AreEqual (string.Empty, new String ('A', 0));
Assert.AreEqual (new String ('A', 3), "AAA");
}
[Test] // ctor (Char, Int32)
public void Constructor4_Count_Negative ()
{
try {
new String ('A', -1);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// 'count' must be non-negative
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("count", ex.ParamName, "#5");
}
}
[Test] // ctor (Char [], Int32, Int32)
public void Constructor6 ()
{
char [] arr = new char [3] { 'A', 'B', 'C' };
Assert.AreEqual ("ABC", new String (arr, 0, arr.Length), "#1");
Assert.AreEqual ("BC", new String (arr, 1, 2), "#2");
Assert.AreEqual (string.Empty, new String (arr, 2, 0), "#3");
}
[Test] // ctor (Char [], Int32, Int32)
public void Constructor6_Length_Negative ()
{
char [] arr = new char [3] { 'A', 'B', 'C' };
try {
new String (arr, 0, -1);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Length cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("length", ex.ParamName, "#5");
}
}
[Test] // ctor (Char [], Int32, Int32)
public void Constructor6_Length_Overflow ()
{
char [] arr = new char [3] { 'A', 'B', 'C' };
try {
new String (arr, 1, 3);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index was out of range. Must be non-negative and
// less than the size of the collection
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("startIndex", ex.ParamName, "#5");
}
}
[Test] // ctor (Char [], Int32, Int32)
public void Constructor6_StartIndex_Negative ()
{
char [] arr = new char [3] { 'A', 'B', 'C' };
try {
new String (arr, -1, 0);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// StartIndex cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("startIndex", ex.ParamName, "#5");
}
}
[Test] // ctor (Char [], Int32, Int32)
public void Constructor6_Value_Null ()
{
try {
new String ((char []) null, 0, 0);
Assert.Fail ("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("value", ex.ParamName, "#5");
}
}
[Test]
public unsafe void CharPtrConstructor ()
{
Assert.AreEqual (String.Empty, new String ((char*) null), "char*");
Assert.AreEqual (String.Empty, new String ((char*) null, 0, 0), "char*,int,int");
}
[Test]
public unsafe void TestSbytePtrConstructorASCII ()
{
Encoding encoding = Encoding.ASCII;
String s = "ASCII*\0";
byte[] bytes = encoding.GetBytes (s);
fixed (byte* bytePtr = bytes)
Assert.AreEqual (s, new String ((sbyte*) bytePtr, 0, bytes.Length, encoding));
}
[Test]
public unsafe void TestSbytePtrConstructorDefault ()
{
Encoding encoding = Encoding.Default;
byte [] bytes = new byte [256];
for (int i = 0; i < 255; i++)
bytes [i] = (byte) (i + 1);
bytes [255] = (byte) 0;
// Ensure that bytes are valid for Encoding.Default
bytes = encoding.GetBytes (encoding.GetChars (bytes));
String s = encoding.GetString(bytes);
// Ensure null terminated array
bytes [bytes.Length - 1] = (byte) 0;
fixed (byte* bytePtr = bytes)
{
Assert.AreEqual (s.Substring (0, s.Length - 1), new String ((sbyte*) bytePtr));
Assert.AreEqual (s, new String ((sbyte*) bytePtr, 0, bytes.Length));
Assert.AreEqual (s, new String ((sbyte*) bytePtr, 0, bytes.Length, null));
Assert.AreEqual (s, new String ((sbyte*) bytePtr, 0, bytes.Length, encoding));
}
}
[Test] // ctor (SByte*)
public unsafe void Constructor3_Value_Null ()
{
Assert.AreEqual (String.Empty, new String ((sbyte*) null));
}
[Test] // ctor (SByte*)
[Ignore ("invalid test")]
public unsafe void Constructor3_Value_Invalid ()
{
try {
new String ((sbyte*) (-1));
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("ptr", ex.ParamName, "#5");
}
}
[Test] // ctor (SByte*, Int32, Int32)
public unsafe void Constructor7_Length_Negative ()
{
try {
new String ((sbyte*) null, 0, -1);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Length cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("length", ex.ParamName, "#5");
}
}
[Test] // ctor (SByte*, Int32, Int32)
public unsafe void Constructor7_StartIndex_Negative ()
{
try {
new String ((sbyte*) null, -1, 0);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// StartIndex cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("startIndex", ex.ParamName, "#5");
}
}
[Test]
public unsafe void Constructor7_StartIndex_Overflow ()
{
try {
new String ((sbyte*) (-1), 1, 0);
Assert.Fail ("#A1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("startIndex", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) (-1), 1, 1);
Assert.Fail ("#B1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("startIndex", ex.ParamName, "#B5");
}
}
[Test] // ctor (SByte*, Int32, Int32)
[Ignore ("invalid test")]
public unsafe void Constructor7_Value_Invalid ()
{
try {
new String ((sbyte*) (-1), 0, 1);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("ptr", ex.ParamName, "#5");
}
}
[Test] // ctor (SByte*, Int32, Int32)
public unsafe void Constructor7_Value_Null ()
{
try {
new String ((sbyte*) null, 0, 0);
Assert.Fail ("#A1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("value", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) null, 0, 1);
Assert.Fail ("#B1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("value", ex.ParamName, "#B5");
}
try {
new String ((sbyte*) null, 1, 0);
Assert.Fail ("#C1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
Assert.AreEqual ("value", ex.ParamName, "#C5");
}
}
[Test] // ctor (SByte*, Int32, Int32, Encoding)
public unsafe void Constructor8_Length_Negative ()
{
try {
new String ((sbyte*) null, 0, -1, null);
Assert.Fail ("#A1");
} catch (ArgumentOutOfRangeException ex) {
// Length cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("length", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) null, 0, -1, Encoding.Default);
Assert.Fail ("#B1");
} catch (ArgumentOutOfRangeException ex) {
// Non-negative number required
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("length", ex.ParamName, "#B5");
}
}
[Test] // ctor (SByte*, Int32, Int32, Encoding)
public unsafe void Constructor8_StartIndex_Negative ()
{
try {
new String ((sbyte*) null, -1, 0, null);
Assert.Fail ("#A1");
} catch (ArgumentOutOfRangeException ex) {
// StartIndex cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("startIndex", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) null, -1, 0, Encoding.Default);
Assert.Fail ("#B1");
} catch (ArgumentOutOfRangeException ex) {
// StartIndex cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("startIndex", ex.ParamName, "#B5");
}
}
[Test]
public unsafe void Constructor8_StartIndex_Overflow ()
{
try {
new String ((sbyte*) (-1), 1, 0, null);
Assert.Fail ("#A1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("startIndex", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) (-1), 1, 1, null);
Assert.Fail ("#B1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("startIndex", ex.ParamName, "#B5");
}
try {
new String ((sbyte*) (-1), 1, 0, Encoding.Default);
Assert.Fail ("#C1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
Assert.AreEqual ("startIndex", ex.ParamName, "#C5");
}
try {
new String ((sbyte*) (-1), 1, 1, Encoding.Default);
Assert.Fail ("#D1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#D2");
Assert.IsNull (ex.InnerException, "#D3");
Assert.IsNotNull (ex.Message, "#D4");
Assert.AreEqual ("startIndex", ex.ParamName, "#D5");
}
}
[Test] // ctor (SByte*, Int32, Int32, Encoding)
[Ignore ("invalid test")]
public unsafe void Constructor8_Value_Invalid ()
{
try {
new String ((sbyte*) (-1), 0, 1, null);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("ptr", ex.ParamName, "#5");
}
}
[Test]
[Ignore ("Runtime throws NullReferenceException instead of AccessViolationException")]
[ExpectedException (typeof (AccessViolationException))]
public unsafe void Constructor8_Value_Invalid2 ()
{
new String ((sbyte*) (-1), 0, 1, Encoding.Default);
}
[Test] // ctor (SByte*, Int32, Int32, Encoding)
public unsafe void Constructor8_Value_Null ()
{
try {
new String ((sbyte*) null, 0, 0, null);
Assert.Fail ("#A1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#A2");
Assert.IsNull (ex.InnerException, "#A3");
Assert.IsNotNull (ex.Message, "#A4");
Assert.AreEqual ("value", ex.ParamName, "#A5");
}
try {
new String ((sbyte*) null, 0, 1, null);
Assert.Fail ("#B1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#B2");
Assert.IsNull (ex.InnerException, "#B3");
Assert.IsNotNull (ex.Message, "#B4");
Assert.AreEqual ("value", ex.ParamName, "#B5");
}
try {
new String ((sbyte*) null, 1, 0, null);
Assert.Fail ("#C1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#C2");
Assert.IsNull (ex.InnerException, "#C3");
Assert.IsNotNull (ex.Message, "#C4");
Assert.AreEqual ("value", ex.ParamName, "#C5");
}
Assert.AreEqual (String.Empty, new String ((sbyte*) null, 0, 0, Encoding.Default), "#D");
try {
new String ((sbyte*) null, 0, 1, Encoding.Default);
Assert.Fail ("#E1");
} catch (ArgumentOutOfRangeException ex) {
// Pointer startIndex and length do not refer to a
// valid string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#E2");
Assert.IsNull (ex.InnerException, "#E3");
Assert.IsNotNull (ex.Message, "#E4");
//Assert.AreEqual ("value", ex.ParamName, "#E5");
}
Assert.AreEqual (String.Empty, new String ((sbyte*) null, 1, 0, Encoding.Default), "#F");
}
[Test]
public void Length ()
{
string str = "test string";
Assert.AreEqual (11, str.Length, "wrong length");
}
[Test]
public void Clone ()
{
string s1 = "oRiGiNal";
Assert.AreEqual (s1, s1.Clone (), "#A1");
Assert.AreSame (s1, s1.Clone (), "#A2");
string s2 = new DateTime (2000, 6, 3).ToString ();
Assert.AreEqual (s2, s2.Clone (), "#B1");
Assert.AreSame (s2, s2.Clone (), "#B2");
}
[Test] // bug #316666
public void CompareNotWorking ()
{
Assert.AreEqual (String.Compare ("A", "a"), 1, "A03");
Assert.AreEqual (String.Compare ("a", "A"), -1, "A04");
}
[Test]
public void CompareNotWorking2 ()
{
string needle = "ab";
string haystack = "abbcbacab";
Assert.AreEqual (0, String.Compare(needle, 0, haystack, 0, 2, false), "basic substring check #9");
for (int i = 1; i <= (haystack.Length - needle.Length); i++) {
if (i != 7) {
Assert.AreEqual (-1, String.Compare(needle, 0, haystack, i, 2, false), "loop substring check #8/" + i);
}
}
}
[Test]
public void Compare ()
{
string lesser = "abc";
string medium = "abcd";
string greater = "xyz";
string caps = "ABC";
Assert.AreEqual (0, String.Compare (null, null));
Assert.AreEqual (1, String.Compare (lesser, null));
Assert.IsTrue (String.Compare (lesser, greater) < 0);
Assert.IsTrue (String.Compare (greater, lesser) > 0);
Assert.IsTrue (String.Compare (lesser, lesser) == 0);
Assert.IsTrue (String.Compare (lesser, medium) < 0);
Assert.IsTrue (String.Compare (lesser, caps, true) == 0);
Assert.IsTrue (String.Compare (lesser, caps, false) != 0);
Assert.AreEqual (String.Compare ("a", "b"), -1, "A01");
Assert.AreEqual (String.Compare ("b", "a"), 1, "A02");
// TODO - test with CultureInfo
string needle = "ab";
string haystack = "abbcbacab";
Assert.AreEqual (0, String.Compare(needle, 0, haystack, 0, 2), "basic substring check #1");
Assert.AreEqual (-1, String.Compare(needle, 0, haystack, 0, 3), "basic substring check #2");
Assert.AreEqual (0, String.Compare("ab", 0, "ab", 0, 2), "basic substring check #3");
Assert.AreEqual (0, String.Compare("ab", 0, "ab", 0, 3), "basic substring check #4");
Assert.AreEqual (0, String.Compare("abc", 0, "ab", 0, 2), "basic substring check #5");
Assert.AreEqual (1, String.Compare("abc", 0, "ab", 0, 5), "basic substring check #6");
Assert.AreEqual (-1, String.Compare("ab", 0, "abc", 0, 5), "basic substring check #7");
for (int i = 1; i <= (haystack.Length - needle.Length); i++) {
if (i != 7) {
Assert.IsTrue (String.Compare(needle, 0, haystack, i, 2) != 0, "loop substring check #1/" + i);
Assert.IsTrue (String.Compare(needle, 0, haystack, i, 3) != 0, "loop substring check #2/" + i);
} else {
Assert.AreEqual (0, String.Compare(needle, 0, haystack, i, 2), "loop substring check #3/" + i);
Assert.AreEqual (0, String.Compare(needle, 0, haystack, i, 3), "loop substring check #4/" + i);
}
}
needle = "AB";
Assert.AreEqual (0, String.Compare(needle, 0, haystack, 0, 2, true), "basic substring check #8");
for (int i = 1; i <= (haystack.Length - needle.Length); i++) {
if (i != 7) {
Assert.IsTrue (String.Compare(needle, 0, haystack, i, 2, true) != 0, "loop substring check #5/" + i);
Assert.IsTrue (String.Compare(needle, 0, haystack, i, 2, false) != 0, "loop substring check #6/" + i);
} else {
Assert.AreEqual (0, String.Compare(needle, 0, haystack, i, 2, true), "loop substring check #7/" + i);
}
}
Assert.AreEqual (0, String.Compare (needle, 0, haystack, 0, 0), "Compare with 0 length");
// TODO - extended format call with CultureInfo
}
[Test]
public void CompareOrdinal ()
{
string lesser = "abc";
string medium = "abcd";
string greater = "xyz";
Assert.AreEqual (0, String.CompareOrdinal (null, null));
Assert.AreEqual (1, String.CompareOrdinal (lesser, null));
Assert.IsTrue (String.CompareOrdinal (lesser, greater) < 0, "#1");
Assert.IsTrue (String.CompareOrdinal (greater, lesser) > 0, "#2");
Assert.IsTrue (String.CompareOrdinal (lesser, lesser) == 0, "#3");
Assert.IsTrue (String.CompareOrdinal (lesser, medium) < 0, "#4");
string needle = "ab";
string haystack = "abbcbacab";
Assert.AreEqual (0, String.CompareOrdinal(needle, 0, haystack, 0, 2), "basic substring check");
Assert.AreEqual (-1, String.CompareOrdinal(needle, 0, haystack, 0, 3), "basic substring miss");
for (int i = 1; i <= (haystack.Length - needle.Length); i++) {
if (i != 7) {
Assert.IsTrue (String.CompareOrdinal(needle, 0, haystack, i, 2) != 0, "loop substring check " + i);
Assert.IsTrue (String.CompareOrdinal(needle, 0, haystack, i, 3) != 0, "loop substring check " + i);
} else {
Assert.AreEqual (0, String.CompareOrdinal(needle, 0, haystack, i, 2), "loop substring check " + i);
Assert.AreEqual (0, String.CompareOrdinal(needle, 0, haystack, i, 3), "loop substring check " + i);
}
}
}
[Test]
public void CompareOrdinalWithOffset ()
{
string ab1 = "ab";
string ab2 = "a" + new string ('b', 1);
Assert.IsTrue (string.CompareOrdinal (ab1, 0, ab1, 1, 1) < 0, "#1");
Assert.IsTrue (string.CompareOrdinal (ab2, 0, ab1, 1, 1) < 0, "#2");
}
[Test]
public void CompareOrdinalSubstringWithNull ()
{
string lesser = "abc";
string greater = "xyz";
Assert.AreEqual (0, string.CompareOrdinal (null, 0, null, 0, 0), "substring both null");
Assert.AreEqual (-1, string.CompareOrdinal (null, 0, greater, 0, 0), "substring strA null");
Assert.AreEqual (-1, string.CompareOrdinal (null, 4, greater, 0, 0), "substring strA null; indexA greater than strA.Length");
Assert.AreEqual (-1, string.CompareOrdinal (null, 0, greater, 4, 0), "substring strA null; indexB greater than strB.Length");
Assert.AreEqual (-1, string.CompareOrdinal (null, -1, greater, -1, -1), "substring strA null; indexA, indexB, length negative");
Assert.AreEqual (1, string.CompareOrdinal (lesser, 0, null, 0, 0), "substring strB null");
Assert.AreEqual (1, string.CompareOrdinal (lesser, 4, null, 0, 0), "substring strB null; indexA greater than strA.Length");
Assert.AreEqual (1, string.CompareOrdinal (lesser, 0, null, 4, 0), "substring strB null; indexB greater than strB.Length");
Assert.AreEqual (1, string.CompareOrdinal (lesser, -1, null, -1, -1), "substring strB null; indexA, indexB, length negative");
}
[Test]
public void CompareTo ()
{
string lower = "abc";
string greater = "xyz";
string lesser = "abc";
Assert.IsTrue (lower.CompareTo (greater) < 0);
Assert.IsTrue (lower.CompareTo (lower) == 0);
Assert.IsTrue (greater.CompareTo (lesser) > 0);
}
class WeirdToString
{
public override string ToString ()
{
return null;
}
}
[Test]
public void Concat ()
{
string string1 = "string1";
string string2 = "string2";
string concat = "string1string2";
Assert.IsTrue (String.Concat (string1, string2) == concat);
Assert.AreEqual (string1, String.Concat (string1, null));
Assert.AreEqual (string1, String.Concat (null, string1));
Assert.AreEqual (string.Empty, String.Concat (null, null));
WeirdToString wts = new WeirdToString ();
Assert.AreEqual (string1, String.Concat (string1, wts));
Assert.AreEqual (string1, String.Concat (wts, string1));
Assert.AreEqual (string.Empty, String.Concat (wts, wts));
string [] allstr = new string []{ string1, null, string2, concat };
object [] allobj = new object []{ string1, null, string2, concat };
string astr = String.Concat (allstr);
Assert.AreEqual ("string1string2string1string2", astr);
string ostr = String.Concat (allobj);
Assert.AreEqual (astr, ostr);
}
[Test]
public void Copy ()
{
string s1 = "original";
string s2 = String.Copy(s1);
Assert.AreEqual (s1, s2, "#1");
Assert.IsTrue (!object.ReferenceEquals (s1, s2), "#2");
}
[Test]
public void Copy_Str_Null ()
{
try {
String.Copy ((string) null);
Assert.Fail ("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("str", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo ()
{
string s1 = "original";
char[] c1 = new char[s1.Length];
string s2 = new String(c1);
Assert.IsTrue (!s1.Equals(s2), "#1");
for (int i = 0; i < s1.Length; i++) {
s1.CopyTo(i, c1, i, 1);
}
s2 = new String(c1);
Assert.AreEqual (s1, s2, "#2");
}
[Test]
public void CopyTo_Count_Negative ()
{
char [] dest = new char [4];
try {
"Mono".CopyTo (0, dest, 0, -1);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Count cannot be less than zero
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("count", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_Count_Overflow ()
{
char [] dest = new char [4];
try {
"Mono".CopyTo (0, dest, 0, Int32.MaxValue);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index and count must refer to a location within the
// string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("sourceIndex", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_Destination_Null ()
{
string s = "original";
try {
s.CopyTo (0, (char []) null, 0, s.Length);
Assert.Fail ("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("destination", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_DestinationIndex_Negative ()
{
char [] dest = new char [4];
try {
"Mono".CopyTo (0, dest, -1, 4);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index and count must refer to a location within the
// string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("destinationIndex", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_DestinationIndex_Overflow ()
{
char [] dest = new char [4];
try {
"Mono".CopyTo (0, dest, Int32.MaxValue, 4);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index and count must refer to a location within the
// string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("destinationIndex", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_SourceIndex_Negative ()
{
char [] dest = new char [4];
try {
"Mono".CopyTo (-1, dest, 0, 4);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index was out of range. Must be non-negative and
// less than the size of the collection
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("sourceIndex", ex.ParamName, "#5");
}
}
[Test]
public void CopyTo_SourceIndex_Overflow ()
{
char[] dest = new char [4];
try {
"Mono".CopyTo (Int32.MaxValue, dest, 0, 4);
Assert.Fail ("#1");
} catch (ArgumentOutOfRangeException ex) {
// Index and count must refer to a location within the
// string
Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("sourceIndex", ex.ParamName, "#5");
}
}
[Test] // EndsWith (String)
public void EndsWith1 ()
{
string s;
Thread.CurrentThread.CurrentCulture = new CultureInfo ("tr-TR");
s = "AbC";
Assert.IsTrue (s.EndsWith ("bC"), "#A1");
Assert.IsTrue (!s.EndsWith ("bc"), "#A1");
Assert.IsTrue (!s.EndsWith ("dc"), "#A2");
Assert.IsTrue (!s.EndsWith ("LAbC"), "#A3");
Assert.IsTrue (s.EndsWith (string.Empty), "#A4");
Assert.IsTrue (!s.EndsWith ("Ab"), "#A5");
Assert.IsTrue (!s.EndsWith ("Abc"), "#A6");
Assert.IsTrue (s.EndsWith ("AbC"), "#A7");
s = "Tai";
Assert.IsTrue (s.EndsWith ("ai"), "#B1");
Assert.IsTrue (!s.EndsWith ("AI"), "#B2");
Assert.IsTrue (!s.EndsWith ("LTai"), "#B3");
Assert.IsTrue (s.EndsWith (string.Empty), "#B4");
Assert.IsTrue (!s.EndsWith ("Ta"), "#B5");
Assert.IsTrue (!s.EndsWith ("tai"), "#B6");
Assert.IsTrue (s.EndsWith ("Tai"), "#B7");
Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
Assert.IsTrue (s.EndsWith ("ai"), "#C1");
Assert.IsTrue (!s.EndsWith ("AI"), "#C2");
Assert.IsTrue (!s.EndsWith ("LTai"), "#C3");
Assert.IsTrue (s.EndsWith (string.Empty), "#C4");
Assert.IsTrue (!s.EndsWith ("Ta"), "#C5");
Assert.IsTrue (!s.EndsWith ("tai"), "#C6");
Assert.IsTrue (s.EndsWith ("Tai"), "#C7");
}
[Test] // EndsWith (String)
public void EndsWith1_Value_Null ()
{
try {
"ABC".EndsWith ((string) null);
Assert.Fail ("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("value", ex.ParamName, "#5");
}
}
[Test] // EndsWith (String, StringComparison)
public void EndsWith2_ComparisonType_Invalid ()
{
try {
"ABC".EndsWith ("C", (StringComparison) 80);
Assert.Fail ("#1");
} catch (ArgumentException ex) {
// The string comparison type passed in is currently
// not supported
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("comparisonType", ex.ParamName, "#5");
}
}
[Test] // EndsWith (String, StringComparison)
public void EndsWith2_Value_Null ()
{
try {
"ABC".EndsWith ((string) null, StringComparison.CurrentCulture);
Assert.Fail ("#1");
} catch (ArgumentNullException ex) {
Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
Assert.IsNull (ex.InnerException, "#3");
Assert.IsNotNull (ex.Message, "#4");
Assert.AreEqual ("value", ex.ParamName, "#5");
}
}
[Test] // EndsWith (String, Boolean, CultureInfo)
public void EndsWith3 ()
{
string s;
bool ignorecase;
CultureInfo culture;
Thread.CurrentThread.CurrentCulture = new CultureInfo ("tr-TR");
s = "AbC";
culture = null;
ignorecase = false;
Assert.IsTrue (!s.EndsWith ("bc", ignorecase, culture), "#A1");
Assert.IsTrue (!s.EndsWith ("dc", ignorecase, culture), "#A2");
Assert.IsTrue (!s.EndsWith ("LAbC", ignorecase, culture), "#A3");
Assert.IsTrue (s.EndsWith (string.Empty, ignorecase, culture), "#A4");
Assert.IsTrue (!s.EndsWith ("Ab", ignorecase, culture), "#A5");
Assert.IsTrue (!s.EndsWith ("Abc", ignorecase, culture), "#A6");
Assert.IsTrue (s.EndsWith ("AbC", ignorecase, culture), "#A7");
ignorecase = true;
Assert.IsTrue (s.EndsWith ("bc", ignorecase, culture), "#B1");
Assert.IsTrue (!s.EndsWith ("dc", ignorecase, culture), "#B2");
Assert.IsTrue (!s.EndsWith ("LAbC", ignorecase, culture), "#B3");
Assert.IsTrue (s.EndsWith (string.Empty, ignorecase, culture), "#B4");
Assert.IsTrue (!s.EndsWith ("Ab", ignorecase, culture), "#B5");
Assert.IsTrue (s.EndsWith ("Abc", ignorecase, culture), "#B6");
Assert.IsTrue (s.EndsWith ("AbC", ignorecase, culture), "#B7");
s = "Tai";
culture = null;
ignorecase = false;
Assert.IsTrue (s.EndsWith ("ai", ignorecase, culture), "#C1");
Assert.IsTrue (!s.EndsWith ("AI", ignorecase, culture), "#C2");
Assert.IsTrue (!s.EndsWith ("LTai", ignorecase, culture), "#C3");
Assert.IsTrue (s.EndsWith (string.Empty, ignorecase, culture), "#C4");
Assert.IsTrue (!s.EndsWith ("Ta", ignorecase, culture), "#C5");
Assert.IsTrue (!s.EndsWith ("tai", ignorecase, culture), "#C6");