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LibJS: Correct the handling of accessors on strings
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Anonymous
Andreas Kling
parent
77511627e9
commit
44a2ebea00
2 changed files with 307 additions and 2 deletions
300
Userland/Libraries/LibJS/Tests/string-basic.js
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300
Userland/Libraries/LibJS/Tests/string-basic.js
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@ -0,0 +1,300 @@
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String.prototype[5] = "five";
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String.prototype.foo = "foo";
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var last_set_this_value = null;
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class TerribleClass {
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get #private_strict() {
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"use strict";
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last_set_this_value = this;
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}
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get #private_non_strict() {
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last_set_this_value = this;
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}
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get 10() {
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"use strict";
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return this.#private_strict;
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}
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get 11() {
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return this.#private_non_strict;
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}
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set 12(v) {
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"use strict";
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return this.#private_strict;
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}
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set 13(v) {
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return this.#private_non_strict;
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}
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get strict_get_private() {
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"use strict";
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return this.#private_strict;
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}
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get non_strict_get_private() {
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return this.#private_non_strict;
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}
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set strict_set_private(v) {
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"use strict";
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this.#private_strict;
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}
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set non_strict_set_private(v) {
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this.#private_non_strict;
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}
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}
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String.prototype.__proto__ = {
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get non_strict_this() {
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return this;
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},
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get strict_this() {
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"use strict";
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return this;
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},
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set set_non_strict_this(v) {
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last_set_this_value = this;
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},
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set set_strict_this(v) {
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"use strict";
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last_set_this_value = this;
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},
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get 6() {
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"use strict";
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return this;
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},
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get 7() {
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return this;
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},
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set 8(v) {
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"use strict";
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last_set_this_value = this;
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},
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set 9(v) {
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last_set_this_value = this;
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},
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};
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String.prototype.__proto__.__proto__ = new TerribleClass();
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test("primitive string: numeric indexing", () => {
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expect(""[0]).toBeUndefined();
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expect("foo"[0]).toBe("f");
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expect("foo"[2]).toBe("o");
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expect("foo"[3]).toBeUndefined();
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expect("foo"[-1]).toBeUndefined();
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expect("foo"[1.5]).toBeUndefined();
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expect("foo"[5]).toBe("five");
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expect(typeof "foo"[6]).toBe("string");
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expect("foo"[6]).toBe("foo");
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expect(typeof "foo"[7]).toBe("object");
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expect("foo"[7] instanceof String).toBeTrue();
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expect("foo"[7] !== "foo"[7]).toBeTrue();
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expect("foo"[7] !== String.prototype).toBeTrue();
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"foo"[8] = "test";
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expect(typeof last_set_this_value).toBe("string");
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expect(last_set_this_value).toBe("foo");
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last_set_this_value = null;
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"foo"[9] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value instanceof String).toBeTrue();
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expect(last_set_this_value !== String.prototype);
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let old_this_value = last_set_this_value;
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last_set_this_value = null;
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"foo"[9] = "test";
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expect(last_set_this_value !== old_this_value).toBeTrue();
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last_set_this_value = null;
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expect(() => "foo"[10]).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => "foo"[11]).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo"[12] = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo"[13] = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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});
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test("primitive string: string property indexing", () => {
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expect(""["0"]).toBeUndefined();
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expect("foo"["0"]).toBe("f");
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expect("foo"["01"]).toBeUndefined();
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expect("foo"[" 1"]).toBeUndefined();
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expect("foo"["1 "]).toBeUndefined();
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expect("foo"["2"]).toBe("o");
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expect("foo"["3"]).toBeUndefined();
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expect("foo"["-1"]).toBeUndefined();
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expect("foo"["1.5"]).toBeUndefined();
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expect("foo"["5"]).toBe("five");
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expect(typeof "foo"["6"]).toBe("string");
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expect("foo"["6"]).toBe("foo");
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expect(typeof "foo"["7"]).toBe("object");
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expect("foo"["7"] instanceof String).toBeTrue();
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expect("foo"["7"] !== "foo"[7]).toBeTrue();
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expect("foo"["7"] !== String.prototope).toBeTrue();
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expect(""["length"]).toBe(0);
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expect("foo"["length"]).toBe(3);
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"foo"["8"] = "test";
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expect(typeof last_set_this_value).toBe("string");
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expect(last_set_this_value).toBe("foo");
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last_set_this_value = null;
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"foo"["9"] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value instanceof String).toBeTrue();
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expect(last_set_this_value !== String.prototype);
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let old_this_value = last_set_this_value;
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last_set_this_value = null;
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"foo"["9"] = "test";
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expect(last_set_this_value !== old_this_value).toBeTrue();
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last_set_this_value = null;
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expect(() => "foo"["10"]).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => "foo"["11"]).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo"["12"] = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo"["13"] = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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});
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test("primitive string: string property name access", () => {
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expect("".length).toBe(0);
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expect("foo".length).toBe(3);
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expect("foo".bar).toBeUndefined();
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expect("foo".foo).toBe("foo");
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expect(typeof "foo".strict_this).toBe("string");
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expect("foo".strict_this).toBe("foo");
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expect(typeof "foo".non_strict_this).toBe("object");
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expect("foo".non_strict_this !== "foo".non_strict_this).toBeTrue();
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expect("foo".non_strict_this !== String.prototype).toBeTrue();
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expect("foo".non_strict_this instanceof String).toBeTrue();
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let str = new String("foo");
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str.set_strict_this = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value).toBe(str);
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last_set_this_value = null;
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str.set_non_strict_this = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value instanceof String).toBeTrue();
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expect(last_set_this_value).toBe(str);
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let old_this_value = last_set_this_value;
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last_set_this_value = null;
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str.set_non_strict_this = "test";
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expect(last_set_this_value === old_this_value).toBeTrue();
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last_set_this_value = null;
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expect(() => "foo".strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => "foo".non_strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo".strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => ("foo".non_strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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});
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test("string object: string numeric indexing", () => {
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expect(new String("")[0]).toBeUndefined();
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expect(new String("foo")[0]).toBe("f");
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expect(new String("foo")[2]).toBe("o");
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expect(new String("foo")[3]).toBeUndefined();
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expect(new String("foo")[-1]).toBeUndefined();
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expect(new String("foo")[1.5]).toBeUndefined();
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expect(new String("foo")[5]).toBe("five");
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expect(typeof new String("foo")[6]).toBe("object");
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let str = new String("foo");
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expect(str[7]).toBe(str);
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expect(typeof "foo"[7]).toBe("object");
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expect(str[7] instanceof String).toBeTrue();
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expect(str[7]).toBe(str);
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expect(str[7] !== String.prototope).toBeTrue();
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str["8"] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value).toBe(str);
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last_set_this_value = null;
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str["9"] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value instanceof String).toBeTrue();
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expect(last_set_this_value).toBe(str);
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let old_this_value = last_set_this_value;
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last_set_this_value = null;
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str["9"] = "test";
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expect(last_set_this_value === old_this_value).toBeTrue();
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last_set_this_value = null;
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});
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test("string object: string property indexing", () => {
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expect(new String("")["0"]).toBeUndefined();
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expect(new String("foo")["0"]).toBe("f");
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expect(new String("foo")["2"]).toBe("o");
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expect(new String("foo")["3"]).toBeUndefined();
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expect(new String("foo")["-1"]).toBeUndefined();
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expect(new String("foo")["1.5"]).toBeUndefined();
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expect(new String("foo")["5"]).toBe("five");
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expect(typeof new String("foo")["6"]).toBe("object");
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let str = new String("foo");
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expect(str["7"]).toBe(str);
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expect(typeof "foo"["7"]).toBe("object");
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expect(str["7"] instanceof String).toBeTrue();
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expect(str["7"]).toBe(str);
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expect(str["7"] !== String.prototope).toBeTrue();
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str["set_strict_this"] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value).toBe(str);
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last_set_this_value = null;
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str["set_non_strict_this"] = "test";
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expect(typeof last_set_this_value).toBe("object");
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expect(last_set_this_value instanceof String).toBeTrue();
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expect(last_set_this_value).toBe(str);
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let old_this_value = last_set_this_value;
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last_set_this_value = null;
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str["set_non_strict_this"] = "test";
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expect(last_set_this_value === old_this_value).toBeTrue();
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last_set_this_value = null;
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expect(() => str.strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => str.non_strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => (str.strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => (str.non_strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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});
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test("string object: string property name access", () => {
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expect(new String("").length).toBe(0);
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expect(new String("foo").length).toBe(3);
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expect(new String("foo").bar).toBeUndefined();
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expect(new String("foo").foo).toBe("foo");
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expect(typeof new String("foo").strict_this).toBe("object");
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let str = new String("foo");
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expect(str.strict_this).toBe(str);
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expect(typeof str.non_strict_this).toBe("object");
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expect(str.non_strict_this === str.non_strict_this).toBeTrue();
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expect(str.non_strict_this !== String.prototype).toBeTrue();
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expect(str.non_strict_this instanceof String).toBeTrue();
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expect(new String("foo").non_strict_this !== new String("foo").non_strict_this).toBeTrue();
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expect(new String("foo").strict_this !== new String("foo").strict_this).toBeTrue();
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last_set_this_value = null;
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expect(() => str.strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => str.non_strict_get_private).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => (str.strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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expect(() => (str.non_strict_set_private = "wat")).toThrow();
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expect(last_set_this_value).toBeNull();
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last_set_this_value = null;
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});
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