Add isArraylikeObject

[Pisces] / string.test.js

diff --git a/string.test.js b/string.test.js
index 5d713f08cefec3c788f10c34fc5b99852a38331d..f70faf6be0b569a7e23ab22c483a6c34f7a44400 100644 (file)
--- a/string.test.js
+++ b/string.test.js
@@ -8,8 +8,10 @@
 // file, You can obtain one at <https://mozilla.org/MPL/2.0/>.
 
 import {
+  assert,
   assertEquals,
   assertStrictEquals,
+  assertThrows,
   describe,
   it,
 } from "./dev-deps.js";
@@ -20,6 +22,7 @@ import {
   codeUnits,
   getCharacter,
   join,
+  Matcher,
   scalarValues,
   scalarValueString,
   splitOnASCIIWhitespace,
@@ -28,6 +31,163 @@ import {
   stripLeadingAndTrailingASCIIWhitespace,
 } from "./string.js";
 
+describe("Matcher", () => {
+  it("[[Construct]] accepts a string first argument", () => {
+    assert(new Matcher(""));
+  });
+
+  it("[[Construct]] accepts a unicode regular expression first argument", () => {
+    assert(new Matcher(/(?:)/u));
+  });
+
+  it("[[Construct]] throws with a non·unicode regular expression first argument", () => {
+    assertThrows(() => new Matcher(/(?:)/));
+  });
+
+  it("[[Construct]] creates a callable object", () => {
+    assertStrictEquals(typeof new Matcher(""), "function");
+  });
+
+  it("[[Construct]] creates a new Matcher", () => {
+    assertStrictEquals(
+      Object.getPrototypeOf(new Matcher("")),
+      Matcher.prototype,
+    );
+  });
+
+  it("[[Construct]] creates an object which inherits from RegExp", () => {
+    assert(new Matcher("") instanceof RegExp);
+  });
+
+  describe("::dotAll", () => {
+    it("[[Get]] returns true when the dotAll flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/su).dotAll, true);
+    });
+
+    it("[[Get]] returns false when the dotAll flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).dotAll, false);
+    });
+  });
+
+  describe("::exec", () => {
+    it("[[Call]] returns the match object given a complete match", () => {
+      assertEquals(
+        [...new Matcher(/.(?<wow>(?:.(?=.))*)(.)?/u).exec("success")],
+        ["success", "ucces", "s"],
+      );
+    });
+
+    it("[[Call]] returns null given a partial match", () => {
+      assertEquals(new Matcher("").exec("failure"), null);
+    });
+  });
+
+  describe("::global", () => {
+    it("[[Get]] returns true when the global flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/gu).global, true);
+    });
+
+    it("[[Get]] returns false when the global flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).global, false);
+    });
+  });
+
+  describe("::hasIndices", () => {
+    it("[[Get]] returns true when the hasIndices flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/du).hasIndices, true);
+    });
+
+    it("[[Get]] returns false when the hasIndices flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).hasIndices, false);
+    });
+  });
+
+  describe("::ignoreCase", () => {
+    it("[[Get]] returns true when the ignoreCase flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/iu).ignoreCase, true);
+    });
+
+    it("[[Get]] returns false when the ignoreCase flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).ignoreCase, false);
+    });
+  });
+
+  describe("::multiline", () => {
+    it("[[Get]] returns true when the multiline flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/mu).multiline, true);
+    });
+
+    it("[[Get]] returns false when the multiline flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).multiline, false);
+    });
+  });
+
+  describe("::source", () => {
+    it("[[Get]] returns the RegExp source", () => {
+      assertStrictEquals(new Matcher("").source, "(?:)");
+      assertStrictEquals(new Matcher(/.*/su).source, ".*");
+    });
+  });
+
+  describe("::sticky", () => {
+    it("[[Get]] returns true when the sticky flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/uy).sticky, true);
+    });
+
+    it("[[Get]] returns false when the sticky flag is not present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).sticky, false);
+    });
+  });
+
+  describe("::unicode", () => {
+    it("[[Get]] returns true when the unicode flag is present", () => {
+      assertStrictEquals(new Matcher(/(?:)/u).unicode, true);
+    });
+  });
+
+  describe("~", () => {
+    it("[[Call]] returns true for a complete match", () => {
+      assertStrictEquals(new Matcher("")(""), true);
+      assertStrictEquals(new Matcher(/.*/su)("success\nyay"), true);
+    });
+
+    it("[[Call]] returns false for a partial match", () => {
+      assertStrictEquals(new Matcher("")("failure"), false);
+      assertStrictEquals(new Matcher(/.*/u)("failure\nno"), false);
+    });
+  });
+
+  describe("~lastIndex", () => {
+    it("[[Get]] returns zero", () => {
+      assertStrictEquals(new Matcher("").lastIndex, 0);
+    });
+
+    it("[[Set]] fails", () => {
+      assertThrows(() => (new Matcher("").lastIndex = 1));
+    });
+  });
+
+  describe("~length", () => {
+    it("[[Get]] returns one", () => {
+      assertStrictEquals(new Matcher("").length, 1);
+    });
+  });
+
+  describe("~name", () => {
+    it("[[Get]] wraps the stringified regular expression if no name was provided", () => {
+      assertStrictEquals(new Matcher("").name, "Matcher(/(?:)/u)");
+      assertStrictEquals(
+        new Matcher(/.*/gsu).name,
+        "Matcher(/.*/gsu)",
+      );
+    });
+
+    it("[[Get]] uses the provided name if one was provided", () => {
+      assertStrictEquals(new Matcher("", "success").name, "success");
+    });
+  });
+});
+
 describe("asciiLowercase", () => {
   it("[[Call]] lowercases (just) A·S·C·I·I letters", () => {
     assertStrictEquals(asciiLowercase("aBſÆss FtɁɂß"), "abſÆss ftɁɂß");