Update blorg test - make it actually fail when public changes

blorg/config_test.go

@@ -1,6 +1,12 @@
 package blorg
 
-import "testing"
+import (
+	"fmt"
+	"io/ioutil"
+	"os/exec"
+	"strings"
+	"testing"
+)
 
 func TestBlorg(t *testing.T) {
 	config, err := ReadConfig("testdata/blorg.org")
@@ -8,7 +14,23 @@ func TestBlorg(t *testing.T) {
 		t.Errorf("Could not read config: %s", err)
 		return
 	}
+	commitedHashBs, err := ioutil.ReadFile("testdata/public.md5")
+	if err != nil {
+		t.Errorf("Could not read hash bytes: %s", err)
+		return
+	}
 	if err := config.Render(); err != nil {
 		t.Errorf("Could not render: %s", err)
+		return
+	}
+	renderedHashBs, err := exec.Command("bash", "-c", fmt.Sprintf("find %s -type f | sort -u | xargs cat | md5sum", config.PublicDir)).Output()
+	if err != nil {
+		t.Errorf("Could not hash PublicDir: %s", err)
+		return
+	}
+	rendered, committed := strings.TrimSpace(string(renderedHashBs)), strings.TrimSpace(string(commitedHashBs))
+	if rendered != committed {
+		t.Errorf("PublicDir hashes do not match: '%s' -> '%s'", committed, rendered)
+		return
 	}
 }