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Add support for multiple tree roots

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This commit is contained in:
Patrik Svensson
2021-01-02 11:25:17 +01:00
committed by Patrik Svensson
parent 4bfb24bfcb
commit 1aa958ced3
4 changed files with 123 additions and 89 deletions
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106
src/Spectre.Console.Tests/Unit/TreeTests.cs
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@@ -1,9 +1,6 @@
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Shouldly;
using Spectre.Console.Rendering;
using Spectre.Console.Testing;
using VerifyXunit;
using Xunit;
@@ -14,77 +11,7 @@ namespace Spectre.Console.Tests.Unit
public class TreeTests
{
[Fact]
public void Should_Measure_Tree_Correctly()
{
// Given
var nestedChildren =
Enumerable.Range(0, 10)
.Select(x => new TreeNode(new Text($"multiple \n line {x}")));
var child3 = new TreeNode(new Text("child3"));
child3.AddChild(new TreeNode(new Text("single leaf\n multiline")));
var children = new List<TreeNode>
{
new(new Text("child1"), nestedChildren), new(new Text("child2")), child3,
};
var root = new TreeNode(new Text("Root node"), children);
var tree = new Tree(root);
// When
var measurement = ((IRenderable)tree).Measure(new RenderContext(Encoding.Unicode, false), 80);
// Then
measurement.Min.ShouldBe(17);
measurement.Max.ShouldBe(19);
}
[Fact]
public void Should_Measure_Tree_Correctly_With_Regard_To_Max_Width()
{
// Given
var root = new TreeNode(new Text("Root node"));
var currentNode = root;
foreach (var i in Enumerable.Range(0, 100))
{
var newNode = new TreeNode(new Text(string.Empty));
currentNode.AddChild(newNode);
currentNode = newNode;
}
var tree = new Tree(root);
// When
var measurement = ((IRenderable)tree).Measure(new RenderContext(Encoding.Unicode, false), 80);
// Then
measurement.Min.ShouldBe(400);
measurement.Max.ShouldBe(80);
}
[Fact]
public void Measure_Leaf_Dominated_Width()
{
// Given
var root = new TreeNode(new Text("Root node"));
var currentNode = root;
foreach (var i in Enumerable.Range(0, 10))
{
var newNode = new TreeNode(new Text(i.ToString()));
currentNode.AddChild(newNode);
currentNode = newNode;
}
var tree = new Tree(root);
// When
var measurement = ((IRenderable)tree).Measure(new RenderContext(Encoding.Unicode, false), 80);
// Then
measurement.Min.ShouldBe(41);
measurement.Max.ShouldBe(41);
}
[Fact]
public Task Should_Render_Tree_Correctly()
public Task Should_Render_Tree_With_Single_Root_Correctly()
{
// Given
var console = new FakeConsole(width: 80);
@@ -101,7 +28,34 @@ namespace Spectre.Console.Tests.Unit
child3.AddChild(child3Child);
var children = new List<TreeNode> { new(new Text("child1"), nestedChildren), child2, child3 };
var root = new TreeNode(new Text("Root node"), children);
var tree = new Tree(root);
var tree = new Tree().AddChild(root);
// When
console.Render(tree);
// Then
return Verifier.Verify(console.Output);
}
[Fact]
public Task Should_Render_Tree_With_Multiple_Roots_Correctly()
{
// Given
var console = new FakeConsole(width: 80);
var nestedChildren =
Enumerable.Range(0, 10)
.Select(x => new TreeNode(new Text($"multiple \n line {x}")));
var child2 = new TreeNode(new Text("child2"));
var child2Child = new TreeNode(new Text("child2Child"));
child2.AddChild(child2Child);
child2Child.AddChild(new TreeNode(new Text("Child 2 child\n child")));
var child3 = new TreeNode(new Text("child3"));
var child3Child = new TreeNode(new Text("single leaf\n multiline"));
child3Child.AddChild(new TreeNode(new Calendar(2020, 01)));
child3.AddChild(child3Child);
var children = new List<TreeNode> { new(new Text("child1"), nestedChildren), child2, child3 };
var root = new TreeNode(new Text("Root node"), children);
var tree = new Tree().AddChild(root).AddChild(child2Child);
// When
console.Render(tree);
@@ -116,7 +70,7 @@ namespace Spectre.Console.Tests.Unit
// Given
var console = new FakeConsole(width: 80);
var root = new TreeNode(new Text("Root node"), Enumerable.Empty<TreeNode>());
var tree = new Tree(root);
var tree = new Tree().AddChild(root);
// When
console.Render(tree);