From bfcb5ccaee7f562d13ac28d04b9dec7d25d44bdf Mon Sep 17 00:00:00 2001
From: Dmitriy Pleshevskiy <dmitriy@ideascup.me>
Date: Sun, 22 May 2022 00:13:39 +0300
Subject: [PATCH] add more tests

---
 core/utils.test.ts | 24 +++++++++++++++++++++++-
 ren/str.test.ts    |  2 +-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/core/utils.test.ts b/core/utils.test.ts
index 6a1dde6..1969613 100644
--- a/core/utils.test.ts
+++ b/core/utils.test.ts
@@ -1,6 +1,6 @@
 import { assertEquals } from "testing/asserts.ts";
 
-import { isNil, isSkip } from "./utils.ts";
+import { concat, isNil, isSkip, join } from "./utils.ts";
 
 Deno.test({
   name: "should check value on nil",
@@ -27,3 +27,25 @@ Deno.test({
     assertEquals(isSkip([]), false);
   },
 });
+
+Deno.test({
+  name: "should return joined array",
+  fn: () => {
+    assertEquals(join(" ", ["hello", "world"]), "hello world");
+    assertEquals(
+      join(" ", ["hello", "", null, undefined, false, "world"]),
+      "hello world",
+    );
+  },
+});
+
+Deno.test({
+  name: "should return concated array",
+  fn: () => {
+    assertEquals(concat(["hello", "world"]), "helloworld");
+    assertEquals(
+      concat(["hello", "", null, undefined, false, "world"]),
+      "helloworld",
+    );
+  },
+});
diff --git a/ren/str.test.ts b/ren/str.test.ts
index f26dae7..d44e9c9 100644
--- a/ren/str.test.ts
+++ b/ren/str.test.ts
@@ -121,7 +121,7 @@ Deno.test({
 });
 
 Deno.test({
-  name: "should force render doctype if root nod is not html",
+  name: "should force render doctype if root node is not html",
   fn: () => {
     const layout = E("body", [], []);