10000 Issue #1887 by rbri · Pull Request #1888 · mozilla/rhino · GitHub
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Issue #1887 #1888

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Merged
merged 3 commits into from
May 15, 2025
Merged

Issue #1887 #1888

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85a8a56
test case for issue #1887
rbri Apr 26, 2025
9964e39
some more tests added - only setLengthKnownAtPrototypeArray() fails
rbri Apr 27, 2025
4fbf5aa
and more tests
rbri Apr 27, 2025
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160 changes: 160 additions & 0 deletions rhino/src/test/java/org/mozilla/javascript/tests/PutPropertyTest.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,160 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package org.mozilla.javascript.tests;

import org.junit.Test;
import org.mozilla.javascript.testutils.Utils;

/**
* Test for setting a property defined in the prototype chain.
*
* @author Ronald Brill
*/
public class PutPropertyTest {

public void setPropKnownAtPrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.prop = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = WithObjectPrototype.prototype = { prop: 7 };\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.prop + ' # ' + test.prop";

Utils.assertWithAllModes("7 # 1", script);
}

@Test
public void setPropNotKnownAtPrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.prop = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = WithObjectPrototype.prototype = { length: 7 };\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.prop + ' # ' + test.prop";

Utils.assertWithAllModes("undefined # 1", script);
}

@Test
public void setLengthKnownAtPrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = WithObjectPrototype.prototype = { length: 7 };\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + test.length";

Utils.assertWithAllModes("7 # 1", script);
}

@Test
public void setLengthNotKnownAtPrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = WithObjectPrototype.prototype = { prop: 7 };\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + test.length";

Utils.assertWithAllModes("undefined # 1", script);
}

@Test
public void setLengthKnownAtPrototypeArray() throws Exception {
final String script =
"var WithArrayPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = WithArrayPrototype.prototype = [];\n"
+ "var test = new WithArrayPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + test.length";

Utils.assertWithAllModes("0 # 1", script);
}

@Test
public void setPropKnownAtPrototypePrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.prop = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = {}.prototype = { prop: 7 };\n"
+ "var nlpp = WithObjectPrototype.prototype = nlp;\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.prop + ' # ' + nlpp.prop + ' # ' + test.prop";

Utils.assertWithAllModes("7 # 7 # 1", script);
}

@Test
public void setPropNotKnownAtPrototypePrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.prop = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = {}.prototype = { length: 7 };\n"
+ "var nlpp = WithObjectPrototype.prototype = nlp;\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.prop + ' # ' + nlpp.prop + ' # ' + test.prop";

Utils.assertWithAllModes("undefined # undefined # 1", script);
}

@Test
public void setLengthKnownAtPrototypePrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = {}.prototype = { length: 7 };\n"
+ "var nlpp = WithObjectPrototype.prototype = nlp;\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + nlpp.length + ' # ' + test.length";

Utils.assertWithAllModes("7 # 7 # 1", script);
}

@Test
public void setLengthNotKnownAtPrototypePrototypeObject() throws Exception {
final String script =
"var WithObjectPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = {}.prototype = { prop: 7 };\n"
+ "var nlpp = WithObjectPrototype.prototype = nlp;\n"
+ "var test = new WithObjectPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + nlpp.length + ' # ' + test.length";

Utils.assertWithAllModes("undefined # undefined # 1", script);
}

@Test
public void setLengthKnownAtPrototypePrototypeArray() throws Exception {
final String script =
"var WithArrayPrototype = function(array) {\n"
+ " this.length = array.length;\n"
+ " return this;\n"
+ "}\n"
+ "var nlp = {}.prototype = [];\n"
+ "var nlpp = WithArrayPrototype.prototype = nlp;\n"
+ "var test = new WithArrayPrototype(['abc']);\n"
+ "'' + nlp.length + ' # ' + nlpp.length + ' # ' + test.length";

Utils.assertWithAllModes("0 # 0 # 1", script);
}
}
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