added number

validators/number.test.ts

@@ -0,0 +1,69 @@
+import { isNumber, isInteger } from "./number.ts";
+import { validate } from "../mod.ts";
+import {
+  assertEquals,
+  assertNotEquals,
+} from "https://deno.land/std@0.53.0/testing/asserts.ts";
+
+Deno.test("isNumber (match)", async () => {
+  const values = [
+    0,
+    1,
+    2e64,
+    -1,
+    0.1,
+    Math.PI,
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isNumber), []);
+  }
+});
+
+Deno.test("isNumber (no match)", async () => {
+  const values = [
+    undefined,
+    null,
+    NaN,
+    "0",
+    true,
+    false,
+    () => {},
+    function named() {},
+    new Object(),
+    Symbol(),
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isNumber), []);
+  }
+});
+
+Deno.test("isInteger (match)", async () => {
+  const values = [
+    0,
+    1,
+    2e64,
+    -1,
+  ];
+  for (const value of values) {
+    assertEquals(await validate(value, isInteger), []);
+  }
+});
+
+Deno.test("isInteger (no match)", async () => {
+  const values = [
+    undefined,
+    null,
+    NaN,
+    "0",
+    true,
+    false,
+    () => {},
+    function named() {},
+    new Object(),
+    Symbol(),
+    0.1,
+  ];
+  for (const value of values) {
+    assertNotEquals(await validate(value, isInteger), []);
+  }
+});

validators/number.ts

@@ -0,0 +1,25 @@
+import { Validator, Args } from "../mod.ts";
+
+export const isNumber: Validator = {
+  type: "isNumber",
+  check: (value: any) => {
+    if (!Number.isFinite(value)) {
+      return {};
+    }
+  },
+  message: (value: any, args?: Args) => {
+    return `The value '${value && value.toString()}' has to be a number.`;
+  },
+};
+
+export const isInteger: Validator = {
+  type: "isInteger",
+  check: (value: any) => {
+    if (!Number.isInteger(value)) {
+      return {};
+    }
+  },
+  message: (value: any, args?: Args) => {
+    return `The value '${value && value.toString()}' has to be an integer.`;
+  },
+};

validators/string.test.ts

@@ -13,7 +13,7 @@ Deno.test("isString (match)", async () => {
     new String("bar"),
   ];
   for (const value of values) {
-    assertEquals([], await validate(value, isString));
+    assertEquals(await validate(value, isString), []);
   }
 });
 
@@ -31,6 +31,6 @@ Deno.test("isString (no match)", async () => {
     Symbol(),
   ];
   for (const value of values) {
-    assertNotEquals([], await validate(value, isString));
+    assertNotEquals(await validate(value, isString), []);
   }
 });