Jrest

The equivalent of Jest for Rust.

Jrest is a testing framework project for Rust, inspired by Jest, easy to write and easy to read, with fancy diffs when tests fail.

⚠️ Be aware that this is a work in progress.

But it should get regular updates since I'm using it every week on my own open-source projects.

---

• Installation
• Usage
  • .to_be()
  • Primitives
    • .to_be_greater_than()
    • .to_be_greater_than_or_equal()
    • .to_be_less_than()
    • .to_be_less_than_or_equal()
  • Strings
    • .to_start_with()
    • .to_start_with()
• Roadmap
• Thanks

---

Installation

cargo add --dev jrest

Usage

.to_be()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!("A &str").to_be("A &str");
      expect!("A String".to_string()).to_be("A String".to_string());
  }
}

Primitives

.to_be_greater_than()

#[cfg(test)]
  mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!(3).to_be_greater_than(2);
  }
}

.to_be_greater_than_or_equal()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!(3).to_be_greater_than_or_equal(2);
      expect!(3).to_be_greater_than_or_equal(3);
  }
}

.to_be_less_than()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!(2).to_be_less_than(3);
  }
}

.to_be_less_than_or_equal()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!(2).to_be_less_than_or_equal(3);
      expect!(2).to_be_less_than_or_equal(2);
  }
}

Strings

.to_start_with()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!("cargo").to_end_with("go");
  }
}

.to_start_with()

#[cfg(test)]
mod tests {
  use jrest::expect;

  #[test]
  fn test_something() {
      expect!("cargo").to_start_with("car");
  }
}

Roadmap

• .toContain()
• .toHaveLength()
• .toMatch()
• .toMatchObject()
• .toThrow()

Thanks

• Tom Pridham for test-env-helpers inspiration.