public void AsFrozenTest()
{
var fo = new FreezableObject();
Assert.False(fo.IsFrozen());
FreezableExtensions.ThrowIfFrozen(fo);
Assert.Same(fo, FreezableExtensions.AsFrozen(fo));
Assert.True(fo.IsFrozen());
Assert.Throws <System.InvalidOperationException>(() => FreezableExtensions.ThrowIfFrozen(fo));
Assert.False(fo.Freeze());
}
public void SetStringPropertyTest()
{
const string TextValue1 = "aa";
string TextValue2 = TextValue1.Substring(0, 1) + TextValue1.Substring(0, 1);
const string TextValue3 = "bb";
Assert.NotSame(TextValue1, TextValue2);
{
var sut = new TestFreezableObject();
Assert.Null(sut.Text);
sut.Text = TextValue1;
Assert.Same(TextValue1, sut.Text);
sut.Text = TextValue2;
Assert.Same(TextValue1, sut.Text);
sut.Text = TextValue3;
Assert.Same(TextValue3, sut.Text);
sut.Freeze();
Assert.Throws <System.InvalidOperationException>(() => sut.Text = TextValue1);
Assert.Same(TextValue3, sut.Text);
}
{
var sut = new TestFreezableObject();
Assert.Null(sut.Text);
Assert.True(FreezableExtensions.SetStringProperty(sut, ref sut._Text, TextValue1));
Assert.Same(TextValue1, sut.Text);
Assert.False(FreezableExtensions.SetStringProperty(sut, ref sut._Text, TextValue1));
Assert.Same(TextValue1, sut.Text);
Assert.False(FreezableExtensions.SetStringProperty(sut, ref sut._Text, TextValue2));
Assert.Same(TextValue1, sut.Text);
Assert.True(FreezableExtensions.SetStringProperty(sut, ref sut._Text, TextValue3));
Assert.Same(TextValue3, sut.Text);
sut.Freeze();
Assert.Throws <System.InvalidOperationException>(() => FreezableExtensions.SetStringProperty(sut, ref sut._Text, TextValue1));
Assert.Same(TextValue3, sut.Text);
}
}
public void ThrowIfFrozenTest()
{
var fo = new FreezableObject();
Assert.False(fo.IsFrozen());
FreezableExtensions.ThrowIfFrozen(fo);
Assert.Throws <System.InvalidOperationException>(() => FreezableExtensions.ThrowIfNotFrozen(fo));
try {
FreezableExtensions.ThrowIfNotFrozen(fo);
} catch (System.Exception error) {
Assert.Equal("Brimborium.Extensions.Freezable.FreezableObject is NOT frozen.", error.Message);
}
try {
FreezableExtensions.ThrowIfNotFrozen(fo, "xxx");
} catch (System.Exception error) {
Assert.Equal("xxx is NOT frozen.", error.Message);
}
Assert.True(fo.Freeze());
Assert.True(fo.IsFrozen());
Assert.Throws <System.InvalidOperationException>(() => FreezableExtensions.ThrowIfFrozen(fo));
FreezableExtensions.ThrowIfNotFrozen(fo);
try {
FreezableExtensions.ThrowIfFrozen(fo);
} catch (System.Exception error) {
Assert.Equal("Brimborium.Extensions.Freezable.FreezableObject is frozen.", error.Message);
}
try {
FreezableExtensions.ThrowIfFrozen(fo, "xxx");
} catch (System.Exception error) {
Assert.Equal("xxx is frozen.", error.Message);
}
Assert.False(fo.Freeze());
}
