From a64d9575c79605c74d1dcba29c64cf0b0b9f2f5b Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 16 Oct 2025 15:06:14 +0000
Subject: [PATCH] Refactor TextFormatter Draw tests to use local driver for
parallelization
Co-authored-by: tig <585482+tig@users.noreply.github.com>
---
.../Text/TextFormatterTests.cs | 162 ++++++++++++++++++
.../UnitTests.Parallelizable.csproj | 1 +
2 files changed, 163 insertions(+)
diff --git a/Tests/UnitTestsParallelizable/Text/TextFormatterTests.cs b/Tests/UnitTestsParallelizable/Text/TextFormatterTests.cs
index 388714d00..b0e986b8c 100644
--- a/Tests/UnitTestsParallelizable/Text/TextFormatterTests.cs
+++ b/Tests/UnitTestsParallelizable/Text/TextFormatterTests.cs
@@ -2,6 +2,7 @@
using Xunit.Abstractions;
using UnitTests;
+using Terminal.Gui.Drivers;
// Alias Console to MockConsole so we don't accidentally use Console
@@ -2959,4 +2960,165 @@ public class TextFormatterTests
string actual = TextFormatter.ReplaceCRLFWithSpace(input);
Assert.Equal (expected, actual);
}
+
+ #region Draw Tests (using local driver instance for parallelization)
+
+ [Theory]
+ [InlineData ("A", 0, "")]
+ [InlineData ("A", 1, "A")]
+ [InlineData ("A", 2, "A")]
+ [InlineData ("A", 3, " A")]
+ [InlineData ("AB", 1, "A")]
+ [InlineData ("AB", 2, "AB")]
+ [InlineData ("ABC", 3, "ABC")]
+ [InlineData ("ABC", 4, "ABC")]
+ [InlineData ("ABC", 5, " ABC")]
+ [InlineData ("ABC", 6, " ABC")]
+ [InlineData ("ABC", 9, " ABC")]
+ public void Draw_Horizontal_Centered (string text, int width, string expectedText)
+ {
+ // Create a local driver instance for this test
+ var factory = new FakeDriverFactory ();
+ var driver = factory.Create ();
+ driver.SetBufferSize (25, 25);
+
+ TextFormatter tf = new ()
+ {
+ Text = text,
+ Alignment = Alignment.Center
+ };
+
+ tf.ConstrainToWidth = width;
+ tf.ConstrainToHeight = 1;
+ tf.Draw (new Rectangle (0, 0, width, 1), Attribute.Default, Attribute.Default, driver: driver);
+
+ // Pass driver to DriverAssert
+ string actualText = GetDriverContents (driver, width, 1);
+ Assert.Equal (expectedText, actualText);
+ }
+
+ [Theory]
+ [InlineData ("A", 0, "")]
+ [InlineData ("A", 1, "A")]
+ [InlineData ("A", 2, "A")]
+ [InlineData ("A B", 3, "A B")]
+ [InlineData ("A B", 1, "A")]
+ [InlineData ("A B", 2, "A")]
+ [InlineData ("A B", 4, "A B")]
+ [InlineData ("A B", 5, "A B")]
+ [InlineData ("A B", 6, "A B")]
+ [InlineData ("A B", 10, "A B")]
+ [InlineData ("ABC ABC", 10, "ABC ABC")]
+ public void Draw_Horizontal_Justified (string text, int width, string expectedText)
+ {
+ // Create a local driver instance for this test
+ var factory = new FakeDriverFactory ();
+ var driver = factory.Create ();
+ driver.SetBufferSize (25, 25);
+
+ TextFormatter tf = new ()
+ {
+ Text = text,
+ Alignment = Alignment.Fill
+ };
+
+ tf.ConstrainToWidth = width;
+ tf.ConstrainToHeight = 1;
+ tf.Draw (new Rectangle (0, 0, width, 1), Attribute.Default, Attribute.Default, driver: driver);
+
+ string actualText = GetDriverContents (driver, width, 1);
+ Assert.Equal (expectedText, actualText);
+ }
+
+ [Theory]
+ [InlineData ("A", 0, "")]
+ [InlineData ("A", 1, "A")]
+ [InlineData ("A", 2, "A")]
+ [InlineData ("AB", 1, "A")]
+ [InlineData ("AB", 2, "AB")]
+ [InlineData ("ABC", 3, "ABC")]
+ [InlineData ("ABC", 4, "ABC")]
+ [InlineData ("ABC", 6, "ABC")]
+ public void Draw_Horizontal_Left (string text, int width, string expectedText)
+ {
+ // Create a local driver instance for this test
+ var factory = new FakeDriverFactory ();
+ var driver = factory.Create ();
+ driver.SetBufferSize (25, 25);
+
+ TextFormatter tf = new ()
+ {
+ Text = text,
+ Alignment = Alignment.Start
+ };
+
+ tf.ConstrainToWidth = width;
+ tf.ConstrainToHeight = 1;
+ tf.Draw (new Rectangle (0, 0, width, 1), Attribute.Default, Attribute.Default, driver: driver);
+
+ string actualText = GetDriverContents (driver, width, 1);
+ Assert.Equal (expectedText, actualText);
+ }
+
+ [Theory]
+ [InlineData ("A", 0, "")]
+ [InlineData ("A", 1, "A")]
+ [InlineData ("A", 2, " A")]
+ [InlineData ("AB", 1, "B")]
+ [InlineData ("AB", 2, "AB")]
+ [InlineData ("ABC", 3, "ABC")]
+ [InlineData ("ABC", 4, " ABC")]
+ [InlineData ("ABC", 6, " ABC")]
+ public void Draw_Horizontal_Right (string text, int width, string expectedText)
+ {
+ // Create a local driver instance for this test
+ var factory = new FakeDriverFactory ();
+ var driver = factory.Create ();
+ driver.SetBufferSize (25, 25);
+
+ TextFormatter tf = new ()
+ {
+ Text = text,
+ Alignment = Alignment.End
+ };
+
+ tf.ConstrainToWidth = width;
+ tf.ConstrainToHeight = 1;
+ tf.Draw (new Rectangle (0, 0, width, 1), Attribute.Default, Attribute.Default, driver: driver);
+
+ string actualText = GetDriverContents (driver, width, 1);
+ Assert.Equal (expectedText, actualText);
+ }
+
+ ///
+ /// Helper method to extract text content from driver for testing
+ ///
+ private string GetDriverContents (IConsoleDriver driver, int width, int height)
+ {
+ var sb = new System.Text.StringBuilder ();
+ for (int row = 0; row < height; row++)
+ {
+ for (int col = 0; col < width; col++)
+ {
+ if (col < driver.Cols && row < driver.Rows)
+ {
+ sb.Append ((char)driver.Contents [row, col].Rune.Value);
+ }
+ }
+ if (row < height - 1)
+ {
+ sb.AppendLine ();
+ }
+ }
+ // Trim trailing whitespace from each line to match DriverAssert behavior
+ string result = sb.ToString ();
+ string[] lines = result.Split (new[] { '\r', '\n' }, StringSplitOptions.None);
+ for (int i = 0; i < lines.Length; i++)
+ {
+ lines[i] = lines[i].TrimEnd ();
+ }
+ return string.Join ("", lines);
+ }
+
+ #endregion
}
diff --git a/Tests/UnitTestsParallelizable/UnitTests.Parallelizable.csproj b/Tests/UnitTestsParallelizable/UnitTests.Parallelizable.csproj
index 2830159d6..e853ea081 100644
--- a/Tests/UnitTestsParallelizable/UnitTests.Parallelizable.csproj
+++ b/Tests/UnitTestsParallelizable/UnitTests.Parallelizable.csproj
@@ -53,6 +53,7 @@
+