Merge pull request #2 from dominikwinter/1-fix-installation-problems

fix installation problems

Makefile

@@ -1,13 +1,19 @@
-.PHONY: default b build i install r release
+.PHONY: default t test b build i install c clean r release
 
 default: build
 
+t test:
+	go test -v
+
 b build:
 	go build
 
 i install:
 	go install
 
+c clean:
+	go mod tidy
+
 r release:
 	mkdir -p bin
 	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -o bin/genpno-macos-arm64

go.mod

@@ -1,3 +1,3 @@
-module genpno
+module github.com/dominikwinter/genpno
 
 go 1.21.6

main_test.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"testing"
+)
+
+func Test_getRandomDate(t *testing.T) {
+	date := getRandomDate()
+
+	if l := len(date); l != 8 {
+		t.Errorf("Date is not 8 characters long, but %d", l)
+	}
+}
+
+func Test_getRandomThreeDigits(t *testing.T) {
+	three := getRandomThreeDigits(true)
+
+	if l := len(three); l != 3 {
+		t.Errorf("Three is not 3 characters long, but %d", l)
+	}
+}
+
+func Test_getChecksum(t *testing.T) {
+	date := "19800101"
+	three := "123"
+
+	checksum := getChecksum(&date, &three)
+
+	if l := len(checksum); l != 1 {
+		t.Errorf("Checksum is not 2 characters long, but %d", l)
+	}
+}