twofer

README

Two Fer

Two-fer or 2-fer is short for two for one. One for you and one for me.

"One for X, one for me."

When X is a name or "you".

If the given name is "Alice", the result should be "One for Alice, one for me." If no name is given, the result should be "One for you, one for me."

Test-Driven Development

As programmers mature, they eventually want to test their code.

Here at Exercism we simulate Test-Driven Development (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.

It will also provide you with a safety net to explore other solutions without breaking the functionality.

A typical TDD workflow on Exercism:

1. Run the test file and pick one test that's failing.
2. Write some code to fix the test you picked.
3. Re-run the tests to confirm the test is now passing.
4. Repeat from step 1.
5. Submit your solution (exercism submit /path/to/file)

Instructions

Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.

It's important to remember that the goal is to make code as expressive and readable as we can.

Running the tests

To run the tests run the command go test from within the exercise directory.

If the test suite contains benchmarks, you can run these with the -bench flag:

go test -bench .

Keep in mind that each reviewer will run benchmarks on a different machine, with different specs, so the results from these benchmark tests may vary.

Further information

For more detailed information about the Go track, including how to get help if you're having trouble, please visit the exercism.io Go language page.

Source

This is an exercise to introduce users to basic programming constructs, just after hello World. https://en.wikipedia.org/wiki/Two-fer

Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.

Documentation

Overview

Package twofer should have a package comment that summarizes what it's about. https://golang.org/doc/effective_go.html#commentary

Index

• func ShareWith(string) string

Examples

• ShareWith

Functions

func ShareWith

func ShareWith(string) string

ShareWith should have a comment documenting it.

Example

ExampleShareWith() is an Example function. Examples are testable snippets of Go code that are used for documenting and verifying the package API. They may be present in some exercises to demonstrate the expected use of the exercise API and can be run as part of a package's test suite.

When an Example test is run the data that is written to standard output is compared to the data that comes after the "Output: " comment.

Below the result of ShareWith() is passed to standard output using fmt.Println, and this is compared against the expected output. If they are equal, the test passes.

h := ShareWith("")
fmt.Println(h)

Output:

One for you, one for me.