public static void Indexer_WhenGivenNullKey_ThrowsArgumentNullException()
{
var dictionary = new Dictionary <Identifier, string>();
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
Assert.That(() => _ = resolvingDictionary[null], Throws.ArgumentNullException);
}
public static void ContainsKey_WhenGivenNullKey_ThrowsArgumentNullException()
{
var dictionary = new Dictionary <Identifier, string>();
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
Assert.That(() => resolvingDictionary.ContainsKey(null), Throws.ArgumentNullException);
}
public static void Enumerator_WhenInvoked_EnumeratesSameValuesAsCtorArg()
{
var dictionary = new Dictionary <Identifier, string>
{
["B"] = "b",
["C"] = "c"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
Assert.That(resolvingDictionary, Is.EqualTo(dictionary));
}
public static void Count_PropertyGet_MatchesCountInCtorArg()
{
var dictionary = new Dictionary <Identifier, string>
{
["B"] = "b",
["C"] = "c"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
Assert.That(dictionary.Count, Is.EqualTo(resolvingDictionary.Count));
}
public static void Indexer_WhenGivenKeyInNotDictionaryAndDoesNotResolveToOne_ThrowsKeyNotFoundException()
{
var dictionary = new Dictionary <Identifier, string>
{
["X"] = "x",
["Y"] = "y",
["Z"] = "z"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
Assert.That(() => _ = resolvingDictionary["B"], Throws.TypeOf <KeyNotFoundException>());
}
public static void ContainsKey_WhenGivenKeyNotInDictionaryButResolvesToOne_ReturnsTrue()
{
var dictionary = new Dictionary <Identifier, string>
{
["B"] = "b",
["C"] = "c"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
var keyPresent = resolvingDictionary.ContainsKey("Z");
Assert.That(keyPresent, Is.True);
}
public static void Indexer_WhenGivenKeyInDictionary_ReturnsCorrectValue()
{
var dictionary = new Dictionary <Identifier, string>
{
["B"] = "b",
["C"] = "c"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
var result = resolvingDictionary["B"];
Assert.That(result, Is.EqualTo("b"));
}
public static void ContainsKey_WhenGivenKeyInNotDictionaryAndDoesNotResolveToOne_ReturnsFalse()
{
var dictionary = new Dictionary <Identifier, string>
{
["X"] = "x",
["Y"] = "y",
["Z"] = "z"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
var keyPresent = resolvingDictionary.ContainsKey("B");
Assert.That(keyPresent, Is.False);
}
public static void TryGetValue_WhenGivenKeyInDictionary_ReturnsTrueAndCorrectValue()
{
var dictionary = new Dictionary <Identifier, string>
{
["B"] = "b",
["C"] = "c"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
var keyPresent = resolvingDictionary.TryGetValue("B", out var value);
Assert.Multiple(() =>
{
Assert.That(keyPresent, Is.True);
Assert.That(value, Is.EqualTo("b"));
});
}
public static void TryGetValue_WhenGivenKeyInNotDictionaryAndDoesNotResolveToOne_ReturnsFalseAndNullValue()
{
var dictionary = new Dictionary <Identifier, string>
{
["X"] = "x",
["Y"] = "y",
["Z"] = "z"
};
var resolver = new FakeIdentifierResolver();
var resolvingDictionary = new IdentifierResolvingDictionary <string>(dictionary, resolver);
var keyPresent = resolvingDictionary.TryGetValue("B", out var value);
Assert.Multiple(() =>
{
Assert.That(keyPresent, Is.False);
Assert.That(value, Is.Null);
});
}
