more validators

validators/empty.test.ts

@@ -0,0 +1,99 @@
+import { isRequired, isDefined, isNotEmpty } from "./empty.ts";
+import { validate } from "../mod.ts";
+import {
+  assertEquals,
+  assertNotEquals,
+} from "https://deno.land/std@0.53.0/testing/asserts.ts";
+
+Deno.test("isRequired (match)", async () => {
+  const values = [
+    "",
+    "  ",
+    "foo",
+    0,
+    1,
+    true,
+    false,
+    NaN,
+    {},
+    { foo: "bar" },
+    [],
+    ["foo"],
+    Symbol("foo"),
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isRequired), []);
+  }
+});
+
+Deno.test("isRequired (no match)", async () => {
+  const values = [
+    undefined,
+    null,
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isRequired), []);
+  }
+});
+
+Deno.test("isDefined (match)", async () => {
+  const values = [
+    null,
+    "",
+    "  ",
+    "foo",
+    0,
+    1,
+    true,
+    false,
+    NaN,
+    {},
+    { foo: "bar" },
+    [],
+    ["foo"],
+    Symbol("foo"),
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isDefined), []);
+  }
+});
+
+Deno.test("isDefined (no match)", async () => {
+  const values = [
+    undefined,
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isDefined), []);
+  }
+});
+
+Deno.test("isNotEmpty (match)", async () => {
+  const values = [
+    "foo",
+    0,
+    1,
+    true,
+    false,
+    NaN,
+    { foo: "bar" },
+    ["foo"],
+    Symbol("foo"),
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isNotEmpty), []);
+  }
+});
+
+Deno.test("isNotEmpty (no match)", async () => {
+  const values = [
+    undefined,
+    null,
+    "",
+    "  ",
+    {},
+    [],
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isNotEmpty), []);
+  }
+});