feat: minor refactor, docs updates, and a github workflow for tests

.github/workflows/run_tests.yml

@@ -0,0 +1,20 @@
+name: Tests
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the code
+        uses: actions/checkout@v2
+
+      - name: Set up Go 1.14
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.14
+        id: go
+
+      - name: Run Tests
+        run: make test

README.md

@@ -1,4 +1,4 @@
-# Commit Colors
+# Commit Colors [![Test Status](https://github.com/sparkbox/commit-colors/workflows/Tests/badge.svg)](https://github.com/sparkbox/commit-colors/actions?workflow=Tests)
 
 See a lovely color swatch in your terminal every time you author a commit. The hexadecimal color comes from the first six characters in your commit ID. Here's what it looks like:
 
@@ -10,17 +10,19 @@ Commit colors is written in Go, and is usable on Mac, Windows, and Linux.
 
 ## Installation
 
-**Using Homebrew**
+**Via Homebrew**
 
 ```bash
 brew install sparkbox/commit-colors/commit-colors
 ```
 
-**Direct Download**
+**Via Direct Download**
 
 1. Browse to [the list of releases](https://github.com/sparkbox/commit-colors/releases), and download the package that corresponds to your system (Mac, Windows or Linux).
 2. Move the executable to a location on [your PATH](https://superuser.com/a/284351/193516) ([like `/usr/local/bin`](https://superuser.com/q/7150/193516), for example).
 
+<div align="center">· · ·</div></br>
+
 Once installed, you can do a quick test in the terminal:
 
 ```bash
@@ -58,7 +60,7 @@ git push origin 2.0.0
 ```
 
 2. The Github Action handles the rest!
-- The action publishes [a Github release](https://github.com/sparkbox/commit-colors/releases) and a [homebrew update](https://github.com/sparkbox/homebrew-commit-colors).
-- Additional publishing settings can be found in `goreleaser.yml`
+  - The action publishes [a Github release](https://github.com/sparkbox/commit-colors/releases) and a [homebrew update](https://github.com/sparkbox/homebrew-commit-colors).
+  - Additional publishing settings can be found in `goreleaser.yml`
 
 

cmd/get_ids.go

@@ -8,15 +8,15 @@ import (
 )
 
 // GetCommitIDFromArgs returns the first CLI argument and exits gracefully if it's missing
-func GetCommitIDFromArgs() string {
+func GetCommitIDFromArgs(args []string) string {
 	// Note: os.Args[] always contains at least one value (the path to the program).
 	// Any additional values that exist are the arguments passed to the program.
-	if len(os.Args) == 1 {
+	if len(args) == 1 {
 		fmt.Println("commit-colors expects you to provide your commit ID as an argument")
 		os.Exit(3)
 	}
 
-	return os.Args[1]
+	return args[1]
 }
 
 // GetHexIDFromCommitID checks an input string and truncates, if necessary, to return a valid HexID

cmd/main.go

@@ -9,7 +9,7 @@ import (
 //go:generate go run gen.go
 
 func main() {
-	myHexID, err := GetHexIDFromCommitID(GetCommitIDFromArgs())
+	myHexID, err := GetHexIDFromCommitID(GetCommitIDFromArgs(os.Args))
 
 	if err != nil {
 		fmt.Println(err)