public void GetStringValue()
{
var d = new ReadOnlyDictionary <string, string>(new Dictionary <string, string>
{
{ "key_a", "value_a" }
});
Assert.That(d.GetStringValue("key_a"), Is.EqualTo("value_a"));
Assert.Throws <InvalidOperationException>(() => d.GetStringValue("key_b"));
Assert.That(d.TryGetStringValue("key_a", out var value), Is.True);
Assert.That(value, Is.EqualTo("value_a"));
Assert.That(d.TryGetStringValue("key_b", out value), Is.False);
}
public void ArgumentExceptions()
{
ReadOnlyDictionary <string, string> d = null;
Assert.Throws <ArgumentNullException>(() => d.GetStringValue("key"));
Assert.Throws <ArgumentNullException>(() => d.TryGetStringValue("key", out _));
Assert.Throws <ArgumentNullException>(() => d.GetGuidValue("key"));
Assert.Throws <ArgumentNullException>(() => d.TryGetGuidValue("key", out _));
Assert.Throws <ArgumentNullException>(() => d.GetIntValue("key"));
Assert.Throws <ArgumentNullException>(() => d.TryGetIntValue("key", out _));
}
