more validators

validators/boolean.test.ts

@@ -0,0 +1,36 @@
+import { isBoolean } from "./boolean.ts";
+import { validate } from "../mod.ts";
+import {
+  assertEquals,
+  assertNotEquals,
+} from "https://deno.land/std@0.53.0/testing/asserts.ts";
+
+Deno.test("isBoolean (match)", async () => {
+  const values = [
+    undefined,
+    null,
+    true,
+    false,
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isBoolean), []);
+  }
+});
+
+Deno.test("isBoolean (no match)", async () => {
+  const values = [
+    0,
+    1,
+    "",
+    "foo",
+    new String(),
+    new String("bar"),
+    () => {},
+    function named() {},
+    new Object(),
+    Symbol(),
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isBoolean), []);
+  }
+});