Add tests

[Geofrey Ernest]

@holys I am currently working on tests for the avatar package.

If anyone else is working on this maybe we should see what is the best approach. Meanwhile I try to take the path to the font file from the environment variables.

This is how my makefile looks like in the moment.

.PHONY: test

fontFile=$(CURDIR)/resource/fonts/Hiragino_Sans_GB_W3.ttf
all: install

test:
    AVATAR_FONT=$(fontFile) go test -v ./avatar

install:
    go install github.com/holys/initials-avatar/cmd/avatar

Note I had to rename the font file to remove spaces inorder to work in my linux machine.

And the avatar_test.go file

package avatar

import (
    "os"
    "testing"
)

func TestInitialsAvatar_DrawToBytes(t *testing.T) {
    fontFile := os.Getenv("AVATAR_FONT")
    if fontFile == "" {
        t.Skip("Font file is needed")
    }

    av := New(fontFile)

    stuffs := []struct {
        name      string
        size      int
        undersize bool
        oversize  bool
    }{
        {"Swordsmen", 22, true, false},
        {"Condor Heroes", 30, false, false},
        {"Condor Heroes", 30, false, false},
        //      {"Condor Heroes", 200, false, true},
    }

    for _, v := range stuffs {
        _, err := av.DrawToBytes(v.name, v.size)
        if err != nil {
            t.Error(err)
        }
    }
}

Before I do something crazy, any imput will be appreciated. This is due to the fact that the local fuctions will also need tests, and will it we okay to have a test case like TestGetInitials for testing local getInitials function ?

[Geofrey Ernest]

Done #4