move test file out of tests dir in flags module (denoland/deno_std#293)

Original: e80f144890

flags/unknown_test.ts

@@ -0,0 +1,98 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { test } from "../testing/mod.ts";
+import { assertEquals } from "../testing/asserts.ts";
+import { parse } from "./mod.ts";
+
+test(function booleanAndAliasIsNotUnknown() {
+  const unknown = [];
+  function unknownFn(arg): boolean {
+    unknown.push(arg);
+    return false;
+  }
+  const aliased = ["-h", "true", "--derp", "true"];
+  const regular = ["--herp", "true", "-d", "true"];
+  const opts = {
+    alias: { h: "herp" },
+    boolean: "h",
+    unknown: unknownFn
+  };
+  parse(aliased, opts);
+  parse(regular, opts);
+
+  assertEquals(unknown, ["--derp", "-d"]);
+});
+
+test(function flagBooleanTrueAnyDoubleHyphenArgumentIsNotUnknown() {
+  const unknown = [];
+  function unknownFn(arg): boolean {
+    unknown.push(arg);
+    return false;
+  }
+  const argv = parse(["--honk", "--tacos=good", "cow", "-p", "55"], {
+    boolean: true,
+    unknown: unknownFn
+  });
+  assertEquals(unknown, ["--tacos=good", "cow", "-p"]);
+  assertEquals(argv, {
+    honk: true,
+    _: []
+  });
+});
+
+test(function stringAndAliasIsNotUnkown() {
+  const unknown = [];
+  function unknownFn(arg): boolean {
+    unknown.push(arg);
+    return false;
+  }
+  const aliased = ["-h", "hello", "--derp", "goodbye"];
+  const regular = ["--herp", "hello", "-d", "moon"];
+  const opts = {
+    alias: { h: "herp" },
+    string: "h",
+    unknown: unknownFn
+  };
+  parse(aliased, opts);
+  parse(regular, opts);
+
+  assertEquals(unknown, ["--derp", "-d"]);
+});
+
+test(function defaultAndAliasIsNotUnknown() {
+  const unknown = [];
+  function unknownFn(arg): boolean {
+    unknown.push(arg);
+    return false;
+  }
+  const aliased = ["-h", "hello"];
+  const regular = ["--herp", "hello"];
+  const opts = {
+    default: { h: "bar" },
+    alias: { h: "herp" },
+    unknown: unknownFn
+  };
+  parse(aliased, opts);
+  parse(regular, opts);
+
+  assertEquals(unknown, []);
+});
+
+test(function valueFollowingDoubleHyphenIsNotUnknown() {
+  const unknown = [];
+  function unknownFn(arg): boolean {
+    unknown.push(arg);
+    return false;
+  }
+  const aliased = ["--bad", "--", "good", "arg"];
+  const opts = {
+    "--": true,
+    unknown: unknownFn
+  };
+  const argv = parse(aliased, opts);
+
+  assertEquals(unknown, ["--bad"]);
+  assertEquals(argv, {
+    "--": ["good", "arg"],
+    _: []
+  });
+});