public void TextProviderTest()
{
using (TextProvider <object> text = new TextProvider <object>())
{
AssertTextProvider("", text);
Assert.AreEqual(new TextPosition(0, 15), text.Edit(new TextPosition(0, 0), new TextPosition(0, 0), "Vczh is genius!"));
AssertTextProvider("Vczh is genius!", text);
Assert.AreEqual(new TextPosition(1, 15), text.Edit(new TextPosition(0, 15), new TextPosition(0, 15), "", "Vczh is clever!"));
AssertTextProvider("Vczh is genius!\r\nVczh is clever!", text);
Assert.AreEqual(new TextPosition(0, 6), text.Edit(new TextPosition(0, 6), new TextPosition(1, 6)));
AssertTextProvider("Vczh is clever!", text);
}
using (TextProvider <object> text = new TextProvider <object>())
{
Assert.AreEqual(new TextPosition(3, 6), text.Edit(new TextPosition(0, 0), new TextPosition(0, 0), "ABCDEFG", "HIJKLMN", "OPQRST", "UVWXYZ"));
AssertTextProvider("ABCDEFG\r\nHIJKLMN\r\nOPQRST\r\nUVWXYZ", text);
Assert.AreEqual(new TextPosition(0, 7), text.Edit(new TextPosition(0, 4), new TextPosition(2, 3), "..."));
AssertTextProvider("ABCD...RST\r\nUVWXYZ", text);
Assert.AreEqual(new TextPosition(2, 3), text.Edit(new TextPosition(0, 4), new TextPosition(0, 7), "EFG", "HIJKLMN", "OPQ"));
AssertTextProvider("ABCDEFG\r\nHIJKLMN\r\nOPQRST\r\nUVWXYZ", text);
Assert.AreEqual(new TextPosition(1, 3), text.Edit(new TextPosition(0, 4), new TextPosition(2, 3), "...", "???"));
AssertTextProvider("ABCD...\r\n???RST\r\nUVWXYZ", text);
}
}