Let's create a random emoji generator in package emoji.
Prepare a list of funny emoji codes
🚲 🐸 🐡 🎉 😆 👏 🏄 🔞 🍫 🏖️ 🐳 💯 🤓 🌝 🤘 🤣 🍪 🌼 🔔 🎅 🍄 🚗 🦄 🎃 👈 :trollface: 🐒 🌞 :octocat: 👇 🐽 🛍️ 🍼 :feelsgood: 🍻 🙀 👀 ☃️ 🐣 🚀 🐮 💅 ‼️ 🚁
var (
AvailEmojies = []string{
":bike:",
":frog:",
":blowfish:",
":tada:",
":laughing:",
":clap:",
":surfer:",
":underage:",
":chocolate_bar:",
":beach_umbrella:",
":whale:",
":100:",
":nerd_face:",
":full_moon_with_face:",
":metal:",
":rofl:",
":cookie:",
":blossom:",
":bell:",
":santa:",
":mushroom:",
":red_car:",
":unicorn:",
":jack_o_lantern:",
":point_left:",
":trollface:",
":monkey:",
":sun_with_face:",
":octocat:",
":point_down:",
":pig_nose:",
":shopping:",
":baby_bottle:",
":feelsgood:",
":beers:",
":scream_cat:",
":eyes:",
":snowman_with_snow:",
":hatching_chick:",
":rocket:",
":cow:",
":nail_care:",
":bangbang:",
":helicopter:",
}
)
Prepare a helper function to generate a code every time being called. Using a random integer generation function in math/rand
func RndEmoji() string {
return AvailEmojies[rand.New(rand.NewSource(time.Now().UnixNano())).Intn(len(AvailEmojies))]
}
Almost done, for now, you can use it somewhere else for fun. Here I'd like to use the test feature provided by go.
Now, create a test file with suffix _test in the same location as emoji.go, called emoji_test.go
import (
"testing"
)
func TestEmoji(t *testing.T) {
for i := 0; i < 10; i++ {
t.Log(RndEmoji())
}
}
Simple. Isn't it?
To run the test just go test it, use verbose mode to allow Log level info to print.
go test -v <GOPATH>/holdmyemoji
=== RUN TestEmoji
--- PASS: TestEmoji (0.01s)
emoji_test.go:9: :whale:
emoji_test.go:9: :unicorn:
emoji_test.go:9: :metal:
emoji_test.go:9: :octocat:
emoji_test.go:9: :monkey:
emoji_test.go:9: :sun_with_face:
emoji_test.go:9: :nail_care:
emoji_test.go:9: :helicopter:
emoji_test.go:9: :unicorn:
emoji_test.go:9: :bell:
PASS
The test can also be built first by go test <GOPATH>/rndemoji -c -o emoji, then you can run ./emoji -test.v multiple times.
=== RUN TestEmoji
--- PASS: TestEmoji (0.01s)
emoji_test.go:9: :santa:
emoji_test.go:9: :tada:
emoji_test.go:9: :pig_nose:
emoji_test.go:9: :rocket:
emoji_test.go:9: :eyes:
emoji_test.go:9: :full_moon_with_face:
emoji_test.go:9: :100:
emoji_test.go:9: :trollface:
emoji_test.go:9: :pig_nose:
emoji_test.go:9: :bangbang:
PASS
Also, to have more fun, shuffle the list every time before generating, the list changes from time to time. It, of course, will cost more computation.
for i := range AvailEmojies {
j := rand.New(rand.NewSource(time.Now().UnixNano())).Intn(i+1)
AvailEmojies[j], AvailEmojies[i] = AvailEmojies[i], AvailEmojies[j]
}
Use your funny list, play with it 🚀
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