1 files changed, 76 insertions, 0 deletions
diff --git a/src/IOL.Helpers.Tests/StringHelpersTests.cs b/src/IOL.Helpers.Tests/StringHelpersTests.cs
new file mode 100644
index 0000000..210a3ee
--- /dev/null
+++ b/src/IOL.Helpers.Tests/StringHelpersTests.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using Xunit;
+
+namespace IOL.Helpers.Tests;
+
+public class StringHelpersTests
+{
+	[Fact]
+	public void Base64_Encode_Decode_Behaves() {
+		const string input = "value";
+		var encoded = input.AsBase64EncodedString();
+		Assert.Equal(input, encoded.AsBase64DecodedString());
+	}
+
+	[Fact]
+	public void Unicorn_Format_Behaves() {
+		const string input = "Hello, {name}";
+		var result = input.UnicornFormat(new Dictionary<string, string> {
+				{
+						"name", "World"
+				}
+		});
+		Assert.Equal("Hello, World", result);
+	}
+
+	[Fact]
+	public void IsNullOrWhiteSpace_Behaves() {
+		const string stringWithValue = "value";
+		const string emptyString = "";
+		const string onlyWhitespace = "  ";
+		Assert.False(stringWithValue.IsNullOrWhiteSpace());
+		Assert.True(emptyString.IsNullOrWhiteSpace());
+		Assert.True(onlyWhitespace.IsNullOrWhiteSpace());
+	}
+
+	[Fact]
+	public void AsSnakeCasedString_Behaves() {
+		Assert.Equal("snake_case", "SNAKE Case ".AsSnakeCasedString());
+	}
+
+	[Fact]
+	public void AsSlug_Behaves() {
+		Assert.Equal("tromso-at-night", "Tromsø @ night".AsSlug());
+	}
+
+	[Fact]
+	public void HasValue_Behaves() {
+		Assert.True("asdf".HasValue());
+		Assert.False("  ".HasValue());
+	}
+
+	[Fact]
+	public void AsGuid_Behaves() {
+		Assert.Equal(new Guid("bb7e2fd8-2ded-4fe9-a770-efeba661539c"), "bb7e2fd8-2ded-4fe9-a770-efeba661539c".AsGuid());
+		Assert.Throws<FormatException>(() => "not-a-guid".AsGuid());
+	}
+
+	[Fact]
+	public void AsGuidOrDefault_Behaves() {
+		Assert.Equal(new Guid("bb7e2fd8-2ded-4fe9-a770-efeba661539c"), "bb7e2fd8-2ded-4fe9-a770-efeba661539c".AsGuid());
+		Assert.Equal(default(Guid), "not-a-guid".AsGuidOrDefault());
+	}
+
+	[Fact]
+	public void Capitalize_Behaves() {
+		Assert.Equal("The File", "the file".Capitalize());
+		Assert.Equal("The file", "the file".Capitalize(true));
+	}
+
+	[Fact]
+	public void Obfuscate_Behaves() {
+		Assert.Equal("********", "asdf".Obfuscate());
+		Assert.Equal("****1234", "asdfasdf1234".Obfuscate());
+	}
+}