feat(usability): explain booking fields and validate decimal input (U06)

2026-11-02 06:32:32 +01:00
parent 33a8abf5cc
commit 76ba79b63e
12 changed files with 205 additions and 42 deletions
@@ -0,0 +1,35 @@
+using Duempelkas.App.Services;
+using Xunit;
+
+namespace Duempelkas.Tests;
+
+public class BookingInputTests
+{
+    [Theory]
+    [InlineData("12,50", true)]
+    [InlineData("12.50", true)]
+    [InlineData(" 12,50 ", true)]
+    [InlineData("12,500", false)]
+    [InlineData("-12,50", false)]
+    [InlineData("1.234,56", false)]
+    [InlineData("1,234.56", false)]
+    [InlineData("12,50 €", false)]
+    [InlineData("0", false)]
+    [InlineData("", false)]
+    [InlineData("9999999999999999999999999999999999999", false)]
+    public void DecimalInput_HasExplicitRules(string text, bool valid)
+    {
+        Assert.Equal(valid, BookingInput.TryAmount(text, out var amount));
+        if (valid) Assert.Equal(12.50m, amount);
+    }
+
+    [Fact]
+    public void ServiceValidation_RejectsInvalidData()
+    {
+        Assert.Throws<ArgumentException>(() => BookingInput.Validate(default, "Test", 1m));
+        Assert.Throws<ArgumentException>(() => BookingInput.Validate(DateTime.Today, " ", 1m));
+        Assert.Throws<ArgumentException>(() => BookingInput.Validate(DateTime.Today, "Test", -1m));
+        Assert.Throws<ArgumentException>(() => BookingInput.Validate(DateTime.Today, "Test", 1.001m));
+        Assert.Equal(default, BookingInput.Date("2026-02-30"));
+    }
+}