Skip to content

Commit

Permalink
Divide one test on some tests and add new tests for ChainedHashTable
Browse files Browse the repository at this point in the history
  • Loading branch information
@Gutsonok
Gutsonok committed Nov 24, 2019
1 parent 917cbb5 commit b1dfcb9
Showing 1 changed file with 126 additions and 97 deletions.
223 changes: 126 additions & 97 deletions UnitTest/DataStructuresTests/HashTableSeparateChainingTest.cs
View file
Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
using System.Collections.Generic;
using System;
using System.Collections.Generic;
using System.Linq;
using DataStructures.Dictionaries;
using Xunit;

Expand All @@ -7,107 +9,134 @@ namespace UnitTest.DataStructuresTests
public static class HashTableSeparateChainingTest
{
[Fact]
public static void DoTest()
public static void Adding_ThreeDifferentElements_ReturnsSuccessful()
{
// TEST ADD KEY-VALUE PAIRS
var studentsMarks = new ChainedHashTable<string, int>
{
{"Konstantinos", 124},
{"Bic", 224},
{"Z", 324},
{"Ioanna", 424},
{"Mark Zuckerberg", 524},
{"Semsem", 624},
{"Sa3eeed", 724},
{"Sameer", 824},
{"Ahmad", 924},
{"Zeyad", 999},
{"Mahmoood 3eed", 111},
{"Mahmoood Abu 3eed", 222},
{"EISA", 333},
{"Test1", 3210},
{"Test11", 3210},
{"Test222", 3210},
{"Test3333", 3210},
{"Test44444", 3210},
{"Test555555", 3210},
{"Test6666666", 3210},
{"Test77777777", 3210},
{"Test888888888", 3210}
};

// TEST FETCH KEY-VALUE
var mark = studentsMarks["Ahmad"];
Assert.True(mark == 924);

mark = studentsMarks["Konstantinos"];
Assert.True(mark == 124);

mark = studentsMarks["Bic"];
Assert.True(mark == 224);

mark = studentsMarks["Z"];
Assert.True(mark == 324);

mark = studentsMarks["Ioanna"];
Assert.True(mark == 424);

mark = studentsMarks["Mark Zuckerberg"];
Assert.True(mark == 524);

mark = studentsMarks["Semsem"];
Assert.True(mark == 624);

mark = studentsMarks["Sa3eeed"];
Assert.True(mark == 724);

mark = studentsMarks["Sameer"];
Assert.True(mark == 824);

mark = studentsMarks["Zeyad"];
Assert.True(mark == 999);

mark = studentsMarks["Mahmoood 3eed"];
Assert.True(mark == 111);

mark = studentsMarks["Mahmoood Abu 3eed"];
Assert.True(mark == 222);

mark = studentsMarks["EISA"];
Assert.True(mark == 333);

//
// TEST DELETE BY KEYS
studentsMarks.Remove("Ahmad");
studentsMarks.Remove("Zeyad");
studentsMarks.Remove("Bic");
studentsMarks.Remove("Konstantinos");
studentsMarks.Remove("Sameer");
studentsMarks.Remove("Z");
studentsMarks.Remove("Ioanna");
studentsMarks.Remove("Mark Zuckerberg");
studentsMarks.Remove("Semsem");
studentsMarks.Remove("Sa3eeed");
studentsMarks.Remove("Test1");
studentsMarks.Remove("Test11");
studentsMarks.Remove("Test222");
studentsMarks.Remove("Test3333");
studentsMarks.Remove("Test44444");
studentsMarks.Remove("Test555555");
studentsMarks.Remove("Test6666666");
studentsMarks.Remove("Test77777777");
studentsMarks.Remove("Test888888888");
var studentsMarks = new ChainedHashTable<string, int>();

studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);
studentsMarks.Add(new KeyValuePair<string, int>("Name3", 3));

var mark = studentsMarks["Name1"];
Assert.True(mark == 1);

mark = studentsMarks["Name2"];
Assert.True(mark == 5);

mark = studentsMarks["Name3"];
Assert.True(mark == 3);

Assert.True(studentsMarks.Count == 3);
}

[Fact]
public static void Adding_TwoDuplicateElements_ReturnsException()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);

Action act = () => studentsMarks.Add("Name2", 7);

var exception = Assert.Throws<ArgumentException>(act);
Assert.Equal("Key already exists in the hash table.", exception.Message);
}

[Fact]
public static void GetElement_ExistingElement_ReturnsElement()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);

var value = studentsMarks["Name2"];

Assert.Equal(5, value);
}

[Fact]
public static void GetElement_NonExistingElement_ReturnsException()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);

int value;
Action act = () => value = studentsMarks["Name3"];

Assert.Throws<KeyNotFoundException>(act);
}

[Fact]
public static void RemovingOneElement_ThreeDifferentElements_ReturnsSuccessful()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);
studentsMarks.Add(new KeyValuePair<string, int>("Name3", 3));

studentsMarks.Remove("Name2");

var mark = studentsMarks["Name1"];
Assert.True(mark == 1);

mark = studentsMarks["Name3"];
Assert.True(mark == 3);

Assert.False(studentsMarks.ContainsKey("Name2"));

Assert.True(studentsMarks.Count == 2);
}

[Fact]
public static void RemovingAllElement_ThreeDifferentElements_ReturnsSuccessful()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);
studentsMarks.Add(new KeyValuePair<string, int>("Name3", 3));

KeyValuePair<string, int>[] array = new KeyValuePair<string, int>[studentsMarks.Count];

if (studentsMarks != null)
{
studentsMarks.CopyTo(array, 0);
}
studentsMarks.Remove("Name2");
studentsMarks.Remove("Name1");
studentsMarks.Remove("Name3");

Assert.True(array.Length == studentsMarks.Count);
Assert.True(studentsMarks.Count == 0);
}

[Fact]
public static void CopyTo_FilledHashTable_ReturnsSuccessful()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);
studentsMarks.Add(new KeyValuePair<string, int>("Name3", 3));

var array = new KeyValuePair<string, int>[studentsMarks.Count];
studentsMarks.CopyTo(array, 0);

Assert.True(studentsMarks.Count == 3);
Assert.True(array.Length == 3);
var arrayKeys = array.Select(x => x.Key).OrderBy(x => x).ToArray();
Assert.Equal("Name1", arrayKeys[0]);
Assert.Equal("Name2", arrayKeys[1]);
Assert.Equal("Name3", arrayKeys[2]);
}

[Fact]
public static void CopyTo_EmptyHashTable_ReturnsSuccessful()
{
var studentsMarks = new ChainedHashTable<string, int>();
studentsMarks.Add("Name1", 1);
studentsMarks.Add("Name2", 5);
studentsMarks.Add(new KeyValuePair<string, int>("Name3", 3));

studentsMarks.Remove("Name2");
studentsMarks.Remove("Name1");
studentsMarks.Remove("Name3");

Assert.True(studentsMarks.Count == 0);
var array = new KeyValuePair<string, int>[studentsMarks.Count];
studentsMarks.CopyTo(array, 0);
}
}
}

0 comments on commit b1dfcb9

Please sign in to comment.