Search⌘ K
Home
Courses
Powerful Command-Line Applications in Go

Testing colStats

Explore how to implement thorough integration tests for Go command-line tools by using table-driven patterns, error validation, and file-based inputs. Learn to create test data under the testdata directory and validate tool behavior, then prepare for benchmarking to measure performance.

We'll cover the following...

Updating the main_test.go file

In the main_test.go file, we add the package definition and the import section.

For these tests, we’ll use:

  • The bytes package to create buffers to capture the output.
  • The errors package to verify errors.
  • The os package to validate operating system errors.
  • The testing package, which is required to execute tests.
Go (1.6.2)
package main
import (
  "bytes"
  "errors"
  "os"
  "testing"
)
Adding the package and import section

For the integration tests, we test the function ...