adding basic test and organizing code a little bit

doc_test.go

@@ -0,0 +1,61 @@
+package caddyhugo
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"testing"
+)
+
+type World struct {
+	CH         CaddyHugo
+	BlogFolder string
+}
+
+func (w World) Clean() {
+	if w.BlogFolder != "" {
+		os.RemoveAll(w.BlogFolder)
+	}
+}
+
+func NewWorld(t *testing.T) World {
+	dir, err := ioutil.TempDir("", "caddy-hugo2-test-")
+	if err != nil {
+		t.Fatalf("error initializing test environment: %v", err)
+	}
+
+	w := World{BlogFolder: dir}
+
+	cmd := exec.Command("hugo", "new", "site", dir)
+	cmd.Dir = dir
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("error initializing test site: %v\n\n%v", err, string(out))
+	}
+
+	w.CH.Setup(dir)
+
+	return w
+}
+
+func TestDoc(t *testing.T) {
+	w := NewWorld(t)
+	defer w.Clean()
+
+	c, err := GetContent(w.BlogFolder, w.CH.HugoSites)
+	if err != nil {
+		t.Fatalf("couldn't get content from a blank test environment: %v", err)
+	}
+	if len(c) != 0 {
+		t.Fatalf("expected a blank test environment, but saw %d pages", len(c))
+	}
+
+	w.CH.NewContent("test1", "")
+	c, err = GetContent(w.BlogFolder, w.CH.HugoSites)
+	if err != nil {
+		t.Fatalf("couldn't get content from the test environment: %v", err)
+	}
+	if len(c) != 1 {
+		t.Fatalf("expected 1 page, but saw %d pages", len(c))
+	}
+}