public void When_DefaultTextBlock_Clip(TextTrimming trimmingMode)
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock {
Text = "42", TextTrimming = trimmingMode
}; // Used as key, never measured
SUT.CacheMeasure(tb, new Size(200, 100), new Size(125, 25));
SUT.CacheMeasure(tb, new Size(100, 100), new Size(100, 50));
SUT.CacheMeasure(tb, new Size(75, 100), new Size(75, 100));
SUT.CacheMeasure(tb, new Size(50, 100), new Size(50, 100));
Assert.AreEqual(
new Size(125, 25),
SUT.FindMeasuredSize(tb, new Size(125, 100))
);
Assert.AreEqual(
new Size(50, 100),
SUT.FindMeasuredSize(tb, new Size(50, 70))
);
Assert.AreEqual(
null,
SUT.FindMeasuredSize(tb, new Size(52, 70))
);
Assert.AreEqual(
null,
SUT.FindMeasuredSize(tb, new Size(500, 500))
);
}
public void When_SameSize(double availableWidth1, double measuredWidth1, double findWidth1, double availableWidth2, double measuredWidth2, double measuredWidth3)
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock {
Text = "42"
};
Assert.AreEqual(TextWrapping.NoWrap, tb.TextWrapping);
SUT.CacheMeasure(tb, new Size(availableWidth1, 10), new Size(measuredWidth1, 10));
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(findWidth1, 10))
);
SUT.CacheMeasure(tb, new Size(availableWidth2, 10), new Size(measuredWidth2, 10));
Assert.AreEqual(
new Size(measuredWidth2, 10),
SUT.FindMeasuredSize(tb, new Size(availableWidth2, 10)).Value
);
Assert.AreEqual(
new Size(measuredWidth3, 10),
SUT.FindMeasuredSize(tb, new Size(0, 0)).Value
);
}
public void When_SmallerAvailableSize()
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock {
Text = "42"
}; // Used as key, never measured
Assert.AreEqual(TextWrapping.NoWrap, tb.TextWrapping);
SUT.CacheMeasure(tb, new Size(0, 0), new Size(0, 0));
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(50, 50))
);
SUT.CacheMeasure(tb, new Size(100, 100), new Size(50, 10));
Assert.AreEqual(
new Size(50, 10),
SUT.FindMeasuredSize(tb, new Size(100, 100)).Value
);
Assert.AreEqual(
new Size(0, 0),
SUT.FindMeasuredSize(tb, new Size(0, 0)).Value
);
}
public void When_DefaultTextBlock_Wrap()
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock()
{
Text = "42", TextWrapping = TextWrapping.Wrap
};
SUT.CacheMeasure(tb, new Size(50, 100), new Size(50, 70));
Assert.AreEqual(
new Size(50, 70),
SUT.FindMeasuredSize(tb, new Size(50, 100)).Value
);
Assert.AreEqual(
new Size(50, 70),
SUT.FindMeasuredSize(tb, new Size(50, 70)).Value
);
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(50, 69))
);
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(49, 100))
);
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(50.1, 100))
);
}
public void When_DefaultTextBlock()
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock()
{
Text = "42"
};
Assert.AreEqual(TextWrapping.NoWrap, tb.TextWrapping);
SUT.CacheMeasure(tb, new Size(100, 100), new Size(20, 10));
Assert.AreEqual(
new Size(20, 10),
SUT.FindMeasuredSize(tb, new Size(100, 100)).Value
);
Assert.AreEqual(
new Size(20, 10),
SUT.FindMeasuredSize(tb, new Size(50, 100)).Value
);
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(10, 100))
);
}
public void When_MaxMeasureKeyEntries_Reached()
{
var SUT = new TextBlockMeasureCache();
TextBlockMeasureCache.MaxMeasureKeyEntries = 2;
TextBlockMeasureCache.MaxMeasureSizeKeyEntries = 2;
var tb1 = new TextBlock()
{
Text = "42", TextWrapping = TextWrapping.Wrap
};
SUT.CacheMeasure(tb1, new Size(11, 11), new Size(1, 1));
Assert.AreEqual(
new Size(1, 1),
SUT.FindMeasuredSize(tb1, new Size(11, 11)).Value
);
var tb2 = new TextBlock()
{
Text = "43", TextWrapping = TextWrapping.Wrap
};
SUT.CacheMeasure(tb2, new Size(11, 11), new Size(1, 1));
Assert.AreEqual(
new Size(1, 1),
SUT.FindMeasuredSize(tb2, new Size(11, 11)).Value
);
Assert.AreEqual(
new Size(1, 1),
SUT.FindMeasuredSize(tb1, new Size(11, 11)).Value
);
var tb3 = new TextBlock()
{
Text = "44", TextWrapping = TextWrapping.Wrap
};
SUT.CacheMeasure(tb3, new Size(11, 11), new Size(1, 1));
Assert.AreEqual(
new Size(1, 1),
SUT.FindMeasuredSize(tb3, new Size(11, 11)).Value
);
Assert.AreEqual(
new Size(1, 1),
SUT.FindMeasuredSize(tb2, new Size(11, 11)).Value
);
Assert.IsNull(
SUT.FindMeasuredSize(tb1, new Size(11, 11))
);
}
public void When_DefaultTextBlock()
{
var SUT = new TextBlockMeasureCache();
var tb = new TextBlock {
Text = "42"
}; // Used as key, never measured
Assert.AreEqual(TextWrapping.NoWrap, tb.TextWrapping);
SUT.CacheMeasure(tb, new Size(5, 25), new Size(5, 25));
SUT.CacheMeasure(tb, new Size(12, 20), new Size(12, 15));
SUT.CacheMeasure(tb, new Size(100, 100), new Size(20, 10));
var size20x10 = new Size(20, 10);
var resultFor100x100 = SUT.FindMeasuredSize(tb, new Size(100, 100));
Assert.AreEqual(size20x10, resultFor100x100);
var resultFor50x100 = SUT.FindMeasuredSize(tb, new Size(50, 100));
Assert.AreEqual(size20x10, resultFor50x100);
var resultFor20x10 = SUT.FindMeasuredSize(tb, size20x10);
Assert.AreEqual(size20x10, resultFor20x10);
var resultFor10x100 = SUT.FindMeasuredSize(tb, new Size(10, 100));
Assert.AreEqual(size20x10, resultFor10x100);
var resultFor5x20 = SUT.FindMeasuredSize(tb, new Size(5, 20));
Assert.AreEqual(new Size(5, 25), resultFor5x20);
var resultFor5x35 = SUT.FindMeasuredSize(tb, new Size(5, 35));
Assert.AreEqual(resultFor10x100, resultFor5x35);
}
public void When_MaxMeasureSizeKeyEntries_Reached()
{
var SUT = new TextBlockMeasureCache();
TextBlockMeasureCache.MaxMeasureKeyEntries = 2;
TextBlockMeasureCache.MaxMeasureSizeKeyEntries = 2;
var tb = new TextBlock {
Text = "42", TextWrapping = TextWrapping.Wrap
}; // Used as key, never measured
SUT.CacheMeasure(tb, new Size(11, 11), new Size(11, 11));
Assert.AreEqual(
new Size(11, 11),
SUT.FindMeasuredSize(tb, new Size(11, 11))
);
SUT.CacheMeasure(tb, new Size(22, 22), new Size(22, 22));
Assert.AreEqual(
new Size(11, 11),
SUT.FindMeasuredSize(tb, new Size(11, 11))
);
Assert.AreEqual(
new Size(22, 22),
SUT.FindMeasuredSize(tb, new Size(22, 22))
);
SUT.CacheMeasure(tb, new Size(33, 33), new Size(33, 33));
Assert.IsNull(
SUT.FindMeasuredSize(tb, new Size(11, 11))
);
Assert.AreEqual(
new Size(22, 22),
SUT.FindMeasuredSize(tb, new Size(22, 22))
);
Assert.AreEqual(
new Size(33, 33),
SUT.FindMeasuredSize(tb, new Size(33, 33))
);
}