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Test Options in Rust

Introduction to Rust Programming Language
What is Rust? Advantages of Rust History of Rust Installing Rust
Basics of Rust Programming Language
Data Types Variables and Constants Operators Control Flow
Ownership in Rust
What is Ownership? Borrowing and References Slices Memory Management in Rust Garbage Collection in Rust Drop Trait
Functions and Closures in Rust
Defining and Calling Functions Function Parameters and Return Values Closures Higher Order Functions
Structs and Enums in Rust
Structs Defining Structs Tuple Structs Struct Methods Enums Defining Enums Associated Data Enums as Structs
Traits and Generics in Rust
Traits Defining Traits Trait Objects Implementing Traits Generics Defining Generics Trait Bounds Advanced Lifetimes
Concurrency in Rust
What is Concurrency? Threads Creating Threads Communication Between Threads Message Passing Sync and Send Traits Mutexes and Atomic Types Channels
Error Handling in Rust
What are Errors? Panic Result Enum Unwrapping Results Propagating Errors Combinators
Testing and Debugging in Rust
Debugging Rust Code Writing Tests in Rust Unit Tests Integration Tests Running Tests Test Filters Test Options
Advanced Topics in Rust
Unsafe Rust Macros FFI Cargo Rust Standard Library Collections File IO Networking
Rust Applications
Developing Rust Application Rust Web Development Building GUI Applications using Rust
Conclusion
Recap of Rust Programming Language Future of Rust Programming Language.

Test Options

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#description

In Rust, tests are written using the built-in testing framework, which allows developers to make assertions about the behavior of their code. The testing framework provides a number of features, including support for running tests in parallel, measuring test coverage, and running tests in various configurations.

One key aspect of Rust's testing framework is the use of options, which can be used to customize the behavior of tests.

Some of the key options available in Rust include:
  • --test-threads: This option is used to control the number of test threads that are run simultaneously. By default, Rust will use as many threads as there are available CPU cores on the machine. However, this can be overridden to run tests with more or fewer threads.
  • --test-args: This option is used to pass arguments to test functions. This can be useful for running tests with different configurations or settings.
  • --nocapture: By default, Rust captures the output of tests and only displays it if the test fails. Using the --nocapture option will display the output of all tests, regardless of whether they pass or fail.
  • --ignored: This option is used to run tests that have been marked as ignored, i.e., those that are not currently being run as part of the test suite.
  • --test: This option is used to run a specific test function, rather than running the entire test suite. The name of the test function must be provided as an argument.

By using these options, developers can tailor the behavior of Rust's testing framework to meet their specific requirements, making it easier to identify and fix issues in their code.

March 27, 2023

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