Hello world example

go.mod

@@ -0,0 +1,3 @@
+module go_with_tests
+
+go 1.26.1

hello.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func Hello(name string) string {
+	return "Hello, " + name
+}
+
+func main() {
+	fmt.Println(Hello("Hoborg"))
+}

hello_test.go

@@ -0,0 +1,12 @@
+package main
+
+import "testing"
+
+func TestHello(t *testing.T) {
+	got := Hello("Hoborg")
+	want := "Hello, Hoborg"
+
+	if got != want {
+		t.Errorf("got %q want %q", got, want)
+	}
+}