moving tests around

utils/utils_test.go

@@ -3,11 +3,32 @@ package utils
 import "testing"
 
 func TestParse(t *testing.T) {
-	z, x, y, err := utils.ParsePath("/tile/4/3/2.png")
+	z, x, y, ext, err := ParsePath("/tile/4/3/2.webp")
 	if err != nil {
 		t.Error(err)
 	}
-	if z != 4 || x != 3 || y != 2 {
+	if z != 4 || x != 3 || y != 2 || ext != "webp" {
 		t.Fail()
 	}
 }
+
+func TestParseError(t *testing.T) {
+	invalid_paths := []string{
+		"/tile/4/3/2",
+		"/tile/4/3/2.jpg",
+		"/tile/4/3/2.png/",
+		"/tile/4/3/2.png/3",
+		"/tile/4/3/2.png/3/4",
+		"/tile/-1/3/2.png",
+		"/tile/1.5/3/2.png",
+		"/tile/10000/3.5/2.png",
+		"/tile/100000000000000000000000000000000000000000000000000000000000000000/3/2.5.png",
+		"/tile/abc/3/2.png",
+	}
+	for _, path := range invalid_paths {
+		_, _, _, _, err := ParsePath(path)
+		if err == nil {
+			t.Errorf("expected error for path %s", path)
+		}
+	}
+}