Initial

validators/string.test.ts

@@ -0,0 +1,33 @@
+import { isString } from "./string.ts";
+import { validate } from "../mod.ts";
+import { assertEquals, assertNotEquals } from "https://deno.land/std@0.53.0/testing/asserts.ts";
+
+Deno.test("isString (match)", async () => {
+  const values = [
+    "",
+    "foo",
+    new String(),
+    new String("bar")
+  ];
+  for (const value of values) {
+    assertEquals([], await validate(value, isString));
+  }
+});
+
+Deno.test("isString (no match)", async () => {
+  const values = [
+    undefined,
+    null,
+    0,
+    1,
+    true,
+    false,
+    () => {},
+    function named() {},
+    new Object(),
+    Symbol()
+  ];
+  for (const value of values) {
+    assertNotEquals([], await validate(value, isString));
+  }
+});