public void TextBoxBaseUiaTextProvider_FirstVisibleLine_Get_ReturnsCorrectValue()
{
using TextBoxBase textBoxBase = new SubTextBoxBase();
textBoxBase.Multiline = true;
textBoxBase.Size = new Size(50, 100);
textBoxBase.CreateControl();
Assert.True(textBoxBase.IsHandleCreated);
TextBoxBaseUiaTextProvider provider = new TextBoxBaseUiaTextProvider(textBoxBase);
Assert.Equal(0, provider.FirstVisibleLine);
provider.LineScroll(0, 2);
Assert.Equal(0, provider.FirstVisibleLine);
textBoxBase.Text = "Some long long test text for testing GetFirstVisibleLine method";
provider.LineScroll(0, 2);
Assert.Equal(2, provider.FirstVisibleLine);
}
public void TextBoxBaseUiaTextProvider_LineScroll_ReturnCorrectValue(int expectedLine)
{
using TextBoxBase textBoxBase = new SubTextBoxBase
{
Multiline = true,
Text = "Some long long test text for testing GetFirstVisibleLine method",
Size = new Size(50, 100)
};
textBoxBase.CreateControl();
TextBoxBaseUiaTextProvider provider = new TextBoxBaseUiaTextProvider(textBoxBase);
Assert.True(provider.LineScroll(0, expectedLine));
Assert.Equal(expectedLine, provider.FirstVisibleLine);
Assert.True(textBoxBase.IsHandleCreated);
}
public void TextBoxBaseUiaTextProvider_LineScroll_DoesntWork_WitoutHandle(int expectedLine)
{
using TextBoxBase textBoxBase = new SubTextBoxBase
{
Multiline = true,
Size = new Size(50, 100)
};
TextBoxBaseUiaTextProvider provider = new TextBoxBaseUiaTextProvider(textBoxBase);
textBoxBase.Text = "Some long long test text for testing GetFirstVisibleLine method";
Assert.False(provider.LineScroll(0, expectedLine));
Assert.Equal(-1, provider.FirstVisibleLine);
Assert.False(textBoxBase.IsHandleCreated);
}
