220 lines
8.4 KiB
C#
220 lines
8.4 KiB
C#
using System;
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using System.Linq;
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using System.Text.RegularExpressions;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using Sarand.Net.Standard.Base.Utils;
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namespace Sarand.UnitTests.Core.Base.Utils
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{
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[TestClass]
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public class StringUtil_Tester
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{
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// --- Data Members ---
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private Random random = new Random();
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// --- Empty and Blank Values ---
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[TestMethod]
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public void StringUtil_IsEmpty()
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{
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// Leading spaces.
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Assert.AreEqual(true, StringUtil.IsEmpty(null));
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Assert.AreEqual(true, StringUtil.IsEmpty(""));
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Assert.AreEqual(false, StringUtil.IsEmpty(" "));
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Assert.AreEqual(false, StringUtil.IsEmpty("A"));
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Assert.AreEqual(false, StringUtil.IsEmpty("Abc"));
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Assert.AreEqual(true, "".IsEmpty());
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Assert.AreEqual(false, "Abc".IsEmpty());
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}
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[TestMethod]
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public void StringUtil_IsBlank()
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{
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// Leading spaces.
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Assert.AreEqual(true, StringUtil.IsBlank(null));
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Assert.AreEqual(true, StringUtil.IsBlank(""));
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Assert.AreEqual(true, StringUtil.IsBlank(" "));
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Assert.AreEqual(true, StringUtil.IsBlank(" "));
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Assert.AreEqual(true, StringUtil.IsBlank(" \n\t "));
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Assert.AreEqual(false, StringUtil.IsBlank("A"));
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Assert.AreEqual(false, StringUtil.IsBlank("Abc"));
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Assert.AreEqual(true, "".IsBlank());
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Assert.AreEqual(true, " ".IsBlank());
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Assert.AreEqual(false, "Abc".IsBlank());
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}
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// --- Regular Expression Matching ---
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[TestMethod]
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public void StringUtil_IsMatch()
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{
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// IsMatch.
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Assert.AreEqual(true, "ABCDEF".IsMatch("ABCDEF"));
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Assert.AreEqual(true, "ABCDEF".IsMatch("^ABCDEF$"));
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Assert.AreEqual(true, "ABCDEF".IsMatchCI("AbCdEf"));
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Assert.AreEqual(true, "ABCDEF".IsMatchCI("^AbCdEf$"));
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Assert.AreEqual(true, "ABCDEF".IsMatch("^ABC"));
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Assert.AreEqual(true, "ABCDEF".IsMatchCI("AbC"));
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Assert.AreEqual(true, "ABCDEF".IsMatch("CDE"));
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Assert.AreEqual(true, "ABCDEF".IsMatchCI("cDe"));
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Assert.AreEqual(true, "ABCDEF".IsMatch("CDE", System.Text.RegularExpressions.RegexOptions.None));
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Assert.AreEqual(true, "ABCDEF".IsMatch(new Regex("CDE", System.Text.RegularExpressions.RegexOptions.None)));
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Assert.AreEqual(true, "ABCDEF".IsMatch(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.IgnoreCase)));
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// IsMatch with escaped content.
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Assert.AreEqual(true, "ABC\\sDEF".IsMatch("\\\\s"));
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Assert.AreEqual(true, "AB(CD)EF".IsMatch("(..)"));
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Assert.AreEqual(true, "AB(CD)EF".IsMatch("\\(CD\\)"));
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// Not match.
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Assert.AreEqual(false, "ABCDEF".IsMatch("cDe"));
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Assert.AreEqual(false, "ABCDEF".IsMatchCI("eFg"));
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Assert.AreEqual(false, "ABCDEF".IsMatch("cDe", System.Text.RegularExpressions.RegexOptions.None));
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Assert.AreEqual(false, "ABCDEF".IsMatch(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.None)));
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}
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[TestMethod]
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public void StringUtil_Match()
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{
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// Match.
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Assert.AreEqual("CDE", "ABCDEF".GetMatch("CDE"));
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Assert.AreEqual("CDE", "ABCDEF".GetMatchCI("cDe"));
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Assert.AreEqual("CDE", "ABCDEF".Match("CDE", System.Text.RegularExpressions.RegexOptions.None).Value);
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Assert.AreEqual("CDE", "ABCDEF".Match(new Regex("CDE", System.Text.RegularExpressions.RegexOptions.None)).Value);
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Assert.AreEqual("CDE", "ABCDEF".Match(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.IgnoreCase)).Value);
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// Match with escaped content.
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Assert.AreEqual(" ", "ABC DEF".GetMatch("\\s"));
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Assert.AreEqual("\\s", "ABC\\sDEF".GetMatch("\\\\s"));
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Assert.AreEqual("AB", "AB(CD)EF".GetMatch("(..)"));
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Assert.AreEqual("(CD)", "AB(CD)EF".GetMatch("\\(..\\)"));
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Assert.AreEqual("(CD)", "AB(CD)EF".GetMatch("\\(CD\\)"));
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// Not match.
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Assert.AreEqual(null, "ABCDEF".GetMatch("cDe"));
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Assert.AreEqual(null, "ABCDEF".GetMatch("eFg"));
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Assert.AreEqual("", "ABCDEF".Match("cDe", System.Text.RegularExpressions.RegexOptions.None).Value);
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Assert.AreEqual("", "ABCDEF".Match(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.None)).Value);
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}
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[TestMethod]
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public void StringUtil_Matches()
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{
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// Match.
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Assert.AreEqual(1, "ABCDEF".GetMatches("CDE").Count);
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Assert.AreEqual(1, "ABCDEF".GetMatchesCI("cDe").Count);
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Assert.AreEqual(1, "ABCDEF".Matches("CDE", System.Text.RegularExpressions.RegexOptions.None).Count);
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Assert.AreEqual(1, "ABCDEF".Matches(new Regex("CDE", System.Text.RegularExpressions.RegexOptions.None)).Count);
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Assert.AreEqual(1, "ABCDEF".Matches(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.IgnoreCase)).Count);
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// Match with escaped content.
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Assert.AreEqual(1, "ABC DEF".GetMatchesCI("\\s").Count);
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Assert.AreEqual(1, "ABC\\sDEF".GetMatchesCI("\\\\s").Count);
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Assert.AreEqual(4, "AB(CD)EF".GetMatchesCI("(..)").Count);
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Assert.AreEqual("D)", "AB(CD)EF".GetMatchesCI("(..)")[2]);
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Assert.AreEqual(1, "AB(CD)EF".GetMatchesCI("\\(..\\)").Count);
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Assert.AreEqual(1, "AB(CD)EF".GetMatchesCI("\\(CD\\)").Count);
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// Not match.
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Assert.AreEqual(0, "ABCDEF".GetMatches("cDe").Count);
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Assert.AreEqual(0, "ABCDEF".GetMatches("eFg").Count);
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Assert.AreEqual(0, "ABCDEF".Matches("cDe", System.Text.RegularExpressions.RegexOptions.None).Count);
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Assert.AreEqual(0, "ABCDEF".Matches(new Regex("cDe", System.Text.RegularExpressions.RegexOptions.None)).Count);
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}
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[TestMethod]
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public void StringUtil_MatchCount()
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{
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// Match.
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Assert.AreEqual(1, "ABCDEF".GetMatchCount("CDE"));
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Assert.AreEqual(1, "ABCDEF".MatchesCount(new Regex("CDE")));
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Assert.AreEqual(2, "ABCDEFGHICDEJKL".GetMatchCount("CDE"));
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Assert.AreEqual(2, "ABCDEFGHICDEJKL".MatchesCount(new Regex("CDE")));
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}
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// --- Padding ---
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[TestMethod]
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public void StringUtil_PadLeft()
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{
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// Leading spaces.
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Assert.AreEqual(" ", "".PadLeft(3, ' '));
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Assert.AreEqual(" A", "A".PadLeft(3, ' '));
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Assert.AreEqual(" AB", "AB".PadLeft(3, ' '));
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Assert.AreEqual("ABC", "ABC".PadLeft(3, ' '));
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Assert.AreEqual("ABCD", "ABCD".PadLeft(3, ' '));
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// Leading zeroes.
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Assert.AreEqual("00", "".PadLeft(2, '0'));
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Assert.AreEqual("01", "1".PadLeft(2, '0'));
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Assert.AreEqual("123", "123".PadLeft(3, '0'));
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Assert.AreEqual("0123", "123".PadLeft(4, '0'));
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Assert.AreEqual("00123", "123".PadLeft(5, '0'));
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}
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[TestMethod]
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public void StringUtil_PadRight()
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{
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// Leading spaces.
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Assert.AreEqual(" ", "".PadRight(3, ' '));
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Assert.AreEqual("A ", "A".PadRight(3, ' '));
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Assert.AreEqual("AB ", "AB".PadRight(3, ' '));
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Assert.AreEqual("ABC", "ABC".PadRight(3, ' '));
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Assert.AreEqual("ABCD", "ABCD".PadRight(3, ' '));
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// Trailing zeroes.
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Assert.AreEqual("00", "".PadRight(2, '0'));
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Assert.AreEqual("10", "1".PadRight(2, '0'));
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Assert.AreEqual("12", "12".PadRight(2, '0'));
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Assert.AreEqual("123", "123".PadRight(3, '0'));
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Assert.AreEqual("1230", "123".PadRight(4, '0'));
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Assert.AreEqual("12300", "123".PadRight(5, '0'));
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}
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// --- Safe Substrings ---
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[TestMethod]
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public void StringUtil_SubstringSafe()
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{
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Assert.AreEqual("", StringUtil.SubstringSafe(null, 0));
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Assert.AreEqual("", StringUtil.SubstringSafe("", 0));
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Assert.AreEqual("", "".SubstringSafe(0));
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// Right portion from start position.
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Assert.AreEqual("abc", "abc".SubstringSafe(-3));
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Assert.AreEqual("abc", "abc".SubstringSafe(-2));
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Assert.AreEqual("abc", "abc".SubstringSafe(-1));
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Assert.AreEqual("abc", "abc".SubstringSafe(0));
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Assert.AreEqual("bc", "abc".SubstringSafe(1));
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Assert.AreEqual("c", "abc".SubstringSafe(2));
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Assert.AreEqual("", "abc".SubstringSafe(3));
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// Zero length.
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Assert.AreEqual("", StringUtil.SubstringSafe(null, 0, 0));
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Assert.AreEqual("", StringUtil.SubstringSafe("", 0, 0));
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Assert.AreEqual("", "".SubstringSafe(0, 0));
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Assert.AreEqual("", "abc".SubstringSafe(-1, 0));
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Assert.AreEqual("", "abc".SubstringSafe(0, 0));
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Assert.AreEqual("", "abc".SubstringSafe(1, 0));
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Assert.AreEqual("", "abc".SubstringSafe(2, 0));
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Assert.AreEqual("", "abc".SubstringSafe(3, 0));
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Assert.AreEqual("", "abc".SubstringSafe(4, 0));
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// Mid portion.
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Assert.AreEqual("abc", "abcde".SubstringSafe(0, 3));
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Assert.AreEqual("bcd", "abcde".SubstringSafe(1, 3));
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Assert.AreEqual("cde", "abcde".SubstringSafe(2, 3));
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// Excessive length.
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Assert.AreEqual("abcde", "abcde".SubstringSafe(-1, 12));
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Assert.AreEqual("abcde", "abcde".SubstringSafe(0, 12));
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Assert.AreEqual("bcde", "abcde".SubstringSafe(1, 12));
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Assert.AreEqual("cde", "abcde".SubstringSafe(2, 12));
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Assert.AreEqual("de", "abcde".SubstringSafe(3, 12));
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Assert.AreEqual("e", "abcde".SubstringSafe(4, 12));
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Assert.AreEqual("", "abcde".SubstringSafe(5, 12));
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}
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// --- The End ---
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}
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}
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