Squashed commit of the following:

commit 688c5426e8793b808b9c75c9a19733af0a402fcb
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 16:25:14 2024 +0300

    Switch to port 8080

commit c39249f6528ec76686a9382d1dc375c07d1d5044
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 16:24:59 2024 +0300

    Switch to alpine image

commit 5318d7ec3f4f3d205549cf6732fa5b066a1d0a36
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 15:40:14 2024 +0300

    Add docker

commit b6cd60a973da26bc92cf1fb45b4d2396b7ce56ea
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 15:00:12 2024 +0300

    Delete asynchrony

commit 44a194e6d27312f3b8dd0b9c9c02d873e06e0b22
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 14:59:29 2024 +0300

    Add Equals and GetHasCode methods overrides to ProductQuantity class

commit a274eadd313e12f11cc84d32e5030bbc5b187f8c
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 14:58:37 2024 +0300

    Add parsers tests

commit 4f969e70d9716d8ddb4f4efedd466846289d7e2b
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sun Jul 21 14:57:55 2024 +0300

    Update product tests

commit 2485e20d0e93bed562f929055b6867dc2574a95b
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sat Jul 20 19:34:19 2024 +0300

    Implement Excel parser

commit 30f2e28c87a4d961c1f1fc48fbd72334905bf4ed
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Sat Jul 20 16:58:35 2024 +0300

    Implement csv parser

commit 08e86b43c0829de341dc3d24fbe01aadbed2e173
Author: Serghei Cebotari <serghei@cebotari.ru>
Date:   Thu Jul 18 21:01:28 2024 +0300

    Edit port number

1 files changed, 75 insertions, 0 deletions

diff --git a/RhSolutions.SkuParser.Tests/ProductTests.cs b/RhSolutions.SkuParser.Tests/ProductTests.cs
new file mode 100644
index 0000000..12f0944
--- /dev/null
+++ b/RhSolutions.SkuParser.Tests/ProductTests.cs
@@ -0,0 +1,75 @@
+namespace RhSolutions.SkuParser.Tests;
+
+public class ProductTests
+{
+	[TestCase("12222221001")]
+	[TestCase("12222223001")]
+	[TestCase("160001-001")]
+	public void SimpleParse(string value)
+	{
+		Assert.True(Product.TryParse(value, out _));
+	}
+	
+	[TestCase("string 12222221001")]
+	[TestCase("12222223001 string")]
+	[TestCase("string 160001-001")]
+	[TestCase("160001-001 string ")]
+	[TestCase("11096641001 Трубка РЕХАУ из. нерж. стали для подкл. радиатора, Г-образная 16/250")]
+	public void AdvancedParse(string value)
+	{
+		Assert.True(Product.TryParse(value, out _));
+	}
+
+	[TestCase("11600011001")]
+	[TestCase("160001-001")]
+	public void ProductIsCorrect(string value)
+	{
+		if (Product.TryParse(value, out Product? product))
+		{
+			Assert.That(product!.Sku, Is.EqualTo("11600011001"));
+		}
+		else
+		{
+			Assert.Fail($"Parsing failed on {value}");
+		}
+	}
+
+	[TestCase("1222222001")]
+	[TestCase("12222225001")]
+	public void NotParses(string value)
+	{
+		Assert.False(Product.TryParse(value, out _));
+	}
+
+	[Test]
+	public void ProductEquality()
+	{
+		string value = "12222223001";
+		Product.TryParse(value, out Product? first);
+		Product.TryParse(value, out Product? second);
+		if (first == null || second == null)
+		{
+			Assert.Fail($"Parsing failed on {value}");
+		}
+		else
+		{
+			Assert.True(first.Equals(second));
+		}
+	}
+
+	[Test]
+	public void HashTest()
+	{
+		string value = "12222223001";
+		HashSet<Product> set = new();
+		if (Product.TryParse(value, out var product))
+		{
+			set.Add(product!);
+		}
+		else
+		{
+			Assert.Fail($"Parsing failed on {value}");
+		}
+		Assert.True(set.Contains(product!));
+	}
+}
\ No newline at end of file