Improveconstraints

[OsirisTerje]

Fixes #1175

[Copilot]

Pull request overview

Updates NUnit constraint documentation to address #1175 by standardizing constraint pages (UIDs + consistent sections), adding missing/clarifying docs, and introducing compilable snippet-based examples referenced from the docs.

Changes:

• Added new snippet test files under docs/snippets/Snippets.NUnit/Constraints/ and wired docs to reference them via [!code-csharp].
• Standardized constraint doc pages with DocFX uid: constraint-... front matter and restructured content (Usage/Modifiers/Examples/Notes/See Also).
• Added new documentation pages for async constraint usage and Contains/Does.Contain routing, plus updated TOC and xref links.

Reviewed changes

Copilot reviewed 82 out of 82 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
docs/snippets/Snippets.NUnit/Constraints/TypeConstraintSnippets.cs	Adds executable snippet examples for type-related constraints.
docs/snippets/Snippets.NUnit/Constraints/StringConstraintSnippets.cs	Adds executable snippet examples for string constraints.
docs/snippets/Snippets.NUnit/Constraints/SpecialConstraintSnippets.cs	Adds executable snippet examples for special constraints (e.g., delayed, any-of).
docs/snippets/Snippets.NUnit/Constraints/PathConstraintSnippets.cs	Adds executable snippet examples for path constraints.
docs/snippets/Snippets.NUnit/Constraints/DictionaryConstraintSnippets.cs	Adds executable snippet examples for dictionary constraints.
docs/snippets/Snippets.NUnit/Constraints/CompoundConstraintSnippets.cs	Adds executable snippet examples for compound constraints (And/Or/Not).
docs/snippets/Snippets.NUnit/Constraints/ComparisonConstraintSnippets.cs	Adds executable snippet examples for comparison/boolean/throws/contains routing examples.
docs/snippets/Snippets.NUnit/Constraints/CollectionConstraintSnippets.cs	Adds executable snippet examples for collection constraints.
docs/articles/nunit/writing-tests/constraints/XmlSerializableConstraint.md	Adds standardized uid front matter.
docs/articles/nunit/writing-tests/constraints/WhiteSpaceConstraint.md	Adds uid, rewrites content, and references snippet examples.
docs/articles/nunit/writing-tests/constraints/UniqueItemsConstraint.md	Adds uid, rewrites content, and references snippet examples.
docs/articles/nunit/writing-tests/constraints/TrueConstraint.md	Adds uid, expands guidance/notes, references snippet examples.
docs/articles/nunit/writing-tests/constraints/toc.yml	Adds new pages + adds missing constraint pages to constraints TOC.
docs/articles/nunit/writing-tests/constraints/ThrowsNothingConstraint.md	Adds uid, rewrites, references snippet examples.
docs/articles/nunit/writing-tests/constraints/ThrowsConstraint.md	Standardizes uid, reorganizes usage/modifiers/examples and updates references.
docs/articles/nunit/writing-tests/constraints/SubstringConstraint.md	Adds uid, clarifies usage/modifiers, references snippets, links to Contains routing.
docs/articles/nunit/writing-tests/constraints/SubPathConstraint.md	Adds uid and switches examples to snippet include.
docs/articles/nunit/writing-tests/constraints/StartsWithConstraint.md	Adds uid, restructures, references snippets.
docs/articles/nunit/writing-tests/constraints/SomeItemsConstraint.md	Standardizes uid, rewrites structure, references snippets and adds notes/links.
docs/articles/nunit/writing-tests/constraints/SamePathOrUnderConstraint.md	Adds uid and switches examples to snippet include.
docs/articles/nunit/writing-tests/constraints/SamePathConstraint.md	Adds uid and switches examples to snippet include.
docs/articles/nunit/writing-tests/constraints/SameAsConstraint.md	Standardizes uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/ReusableConstraint.md	Adds standardized uid front matter.
docs/articles/nunit/writing-tests/constraints/RegexConstraint.md	Adds uid, restructures, references snippets and adds pattern examples.
docs/articles/nunit/writing-tests/constraints/RangeConstraint.md	Adds uid, restructures, references snippets, adds notes/see-also.
docs/articles/nunit/writing-tests/constraints/PropertyExistsConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/PropertyConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/OrConstraint.md	Adds uid, rewrites and references snippet examples, clarifies precedence.
docs/articles/nunit/writing-tests/constraints/NullConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/NotConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/NoItemConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/NaNConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/MultipleOfConstraint.md	New doc page for Is.MultipleOf, Is.Even, Is.Odd with snippet reference.
docs/articles/nunit/writing-tests/constraints/LessThanOrEqualConstraint.md	Adds uid, restructures, references snippets, adds notes/see-also.
docs/articles/nunit/writing-tests/constraints/LessThanConstraint.md	Adds uid, restructures, references snippets, adds notes/see-also.
docs/articles/nunit/writing-tests/constraints/InstanceOfTypeConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/GreaterThanOrEqualConstraint.md	Adds uid, restructures, references snippets, adds notes/see-also.
docs/articles/nunit/writing-tests/constraints/GreaterThanConstraint.md	Adds uid, restructures, references snippets, adds notes/see-also.
docs/articles/nunit/writing-tests/constraints/FileOrDirectoryExistsConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/FalseConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/ExactTypeConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/ExactCountConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/EqualConstraint.md	Standardizes uid value.
docs/articles/nunit/writing-tests/constraints/EndsWithConstraint.md	Adds uid, restructures, references snippets.
docs/articles/nunit/writing-tests/constraints/EmptyStringConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/EmptyDirectoryConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/EmptyConstraint.md	Adds standardized uid front matter.
docs/articles/nunit/writing-tests/constraints/EmptyCollectionConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/DictionaryContainsValueConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/DictionaryContainsKeyValuePairConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/DictionaryContainsKeyConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/DelayedConstraint.md	Adds uid, rewrites and references snippet examples (including fluent time syntax).
docs/articles/nunit/writing-tests/constraints/DefaultConstraint.md	Adds standardized uid front matter.
docs/articles/nunit/writing-tests/constraints/ContainsHelper.md	New helper page documenting Contains.* syntax helper.
docs/articles/nunit/writing-tests/constraints/ContainsConstraint.md	New page documenting Does.Contain routing behavior and modifiers.
docs/articles/nunit/writing-tests/constraints/Constraints.md	Adds links to new topic pages and updates constraint lists.
docs/articles/nunit/writing-tests/constraints/CollectionSupersetConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/CollectionSubsetConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/CollectionOrderedConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/CollectionEquivalentConstraint.md	Adds uid and expands examples/notes.
docs/articles/nunit/writing-tests/constraints/BinarySerializableConstraint.md	Adds standardized uid front matter.
docs/articles/nunit/writing-tests/constraints/AttributeExistsConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/AttributeConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/AsyncConstraints.md	New page documenting patterns for async constraints and best practices.
docs/articles/nunit/writing-tests/constraints/AssignableToConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/AssignableFromConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/AnyOfConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/constraints/AndConstraint.md	Adds uid, rewrites and references snippet examples, clarifies precedence.
docs/articles/nunit/writing-tests/constraints/AllItemsConstraint.md	Adds uid, rewrites and references snippet examples.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.ThrowsAsync.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.Throws.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.DoesNotThrowAsync.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.DoesNotThrow.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.CatchAsync.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.Catch.md	Updates xref to new ThrowsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.AreSame.md	Updates xref to new SameAsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.AreNotSame.md	Updates xref to new SameAsConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.AreNotEqual.md	Updates xref to new EqualConstraint UID.
docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.AreEqual.md	Updates xref to new EqualConstraint UID.
.claude/skills/constraint-documentation/skill.md	Adds a documented template/guidelines for constraint documentation updates.
.claude/settings.local.json	Expands allowed Bash command patterns for local Claude tooling.
.claude/plans/constraints-improvement-plan.md	Adds/records the constraint documentation improvement plan and progress.

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