[book] testing chapter

[damirka]

No description provided.

[Copilot]

Pull request overview

Adds a new “Testing” chapter to the book (with multiple new pages and sidebar wiring), plus supporting sample Move code and a few site/theme tweaks to improve presentation and syntax highlighting.

Changes:

• Introduce a new Testing section in the book (basics, utilities, TxContext, test scenarios, system objects, random tests, coverage, gas profiling, extensions).
• Add/adjust sample Move modules used by the book (builder pattern samples; small fixes across existing samples).
• Update site styling and Prism Move grammar to better render the new content (tables, bold text, extend module highlighting).

Reviewed changes

Copilot reviewed 24 out of 26 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
site/src/theme/prism-move.js	Extend Prism Move highlighting to recognize extend module ... headers.
site/src/css/custom.css	Adjust global font weights and strengthen <strong> rendering.
site/src/css/code.css	Render ```table fenced blocks in monospace for readability.
rnd/tests/rnd_tests.move	Adds a placeholder (currently commented-out) Move test file for rnd.
rnd/sources/rnd.move	Adds a placeholder (currently commented-out) rnd module stub.
rnd/Move.toml	Introduces a new Move package manifest for rnd.
rnd/.gitignore	Ignores build/trace/coverage artifacts for the rnd package.
packages/samples/sources/testing/builder_pattern_builder.move	Adds a test-only UserBuilder example + tests for the builder pattern chapter.
packages/samples/sources/testing/builder_pattern.move	Adds the corresponding User type used by the builder example.
packages/samples/sources/programmability/publisher.move	Switches cleanup in the test snippet to std::unit_test::destroy.
packages/samples/sources/programmability/dynamic-object-fields.move	Switches cleanup in the test snippet to std::unit_test::destroy.
packages/samples/sources/programmability/collections-4.move	Adds explicit u8 literal to avoid inference ambiguity in examples.
packages/samples/sources/programmability/collections-2.move	Adds explicit u8 literal to avoid inference ambiguity in examples.
packages/samples/sources/move-basics/string.move	Adds an additional string/bytes example line (currently incorrect as written).
packages/samples/sources/move-basics/control-flow.move	Adds explicit u64 literal for clarity/typing in an example.
packages/samples/sources/move-basics/comments-line.move	Adds explicit u8 literal for clarity/typing in an example.
packages/samples/Move.lock	Regenerates the samples lockfile to the newer format/version.
packages/samples/.gitignore	Ignores trace/coverage outputs for the samples package.
packages/hello_world/Move.lock	Regenerates the hello_world lockfile to the newer format/version.
book/testing/index.md	Adds Testing chapter landing page.
book/testing/testing-basics.md	Adds overview of Move’s unit testing model and CLI usage.
book/testing/good-tests.md	Adds guidance on what makes tests effective and maintainable.
book/testing/test-utilities.md	Documents std::unit_test helpers (assert_eq!, destroy, etc.).
book/testing/transaction-context.md	Documents ways to construct/simulate TxContext in tests.
book/testing/test-scenario.md	Documents multi-transaction testing with sui::test_scenario.
book/testing/using-system-objects.md	Documents test creation/usage of system objects (Clock/Random/DenyList/etc.).
book/testing/builder-pattern.md	Builder-pattern chapter referencing the new sample code via anchors.
book/testing/random-test.md	Documents #[random_test] property-style testing.
book/testing/extend-foreign-module.md	Documents module extensions for test helpers (e.g., foreign types).
book/testing/coverage.md	Documents Move coverage generation and output formats.
book/testing/gas-profiling.md	Documents test statistics, traces, and gas profiling workflows.
book/sidebar.yml	Adds the new Testing section and page ordering to the sidebar.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[manolisliolios]

stamp