diff options
Diffstat (limited to '')
-rw-r--r-- | testing/web-platform/tests/common/object-association.js | 74 | ||||
-rw-r--r-- | testing/web-platform/tests/common/object-association.js.headers | 1 |
2 files changed, 75 insertions, 0 deletions
diff --git a/testing/web-platform/tests/common/object-association.js b/testing/web-platform/tests/common/object-association.js new file mode 100644 index 0000000000..669c17c07b --- /dev/null +++ b/testing/web-platform/tests/common/object-association.js @@ -0,0 +1,74 @@ +"use strict"; + +// This is for testing whether an object (e.g., a global property) is associated with Window, or +// with Document. Recall that Window and Document are 1:1 except when doing a same-origin navigation +// away from the initial about:blank. In that case the Window object gets reused for the new +// Document. +// +// So: +// - If something is per-Window, then it should maintain its identity across an about:blank +// navigation. +// - If something is per-Document, then it should be recreated across an about:blank navigation. + +window.testIsPerWindow = propertyName => { + runTests(propertyName, assert_equals, "must not"); +}; + +window.testIsPerDocument = propertyName => { + runTests(propertyName, assert_not_equals, "must"); +}; + +function runTests(propertyName, equalityOrInequalityAsserter, mustOrMustNotReplace) { + async_test(t => { + const iframe = document.createElement("iframe"); + document.body.appendChild(iframe); + const frame = iframe.contentWindow; + + const before = frame[propertyName]; + assert_implements(before, `window.${propertyName} must be implemented`); + + iframe.onload = t.step_func_done(() => { + const after = frame[propertyName]; + equalityOrInequalityAsserter(after, before); + }); + + iframe.src = "/common/blank.html"; + }, `Navigating from the initial about:blank ${mustOrMustNotReplace} replace window.${propertyName}`); + + // Per spec, discarding a browsing context should not change any of the global objects. + test(() => { + const iframe = document.createElement("iframe"); + document.body.appendChild(iframe); + const frame = iframe.contentWindow; + + const before = frame[propertyName]; + assert_implements(before, `window.${propertyName} must be implemented`); + + iframe.remove(); + + const after = frame[propertyName]; + assert_equals(after, before, `window.${propertyName} should not change after iframe.remove()`); + }, `Discarding the browsing context must not change window.${propertyName}`); + + // Per spec, document.open() should not change any of the global objects. In historical versions + // of the spec, it did, so we test here. + async_test(t => { + const iframe = document.createElement("iframe"); + + iframe.onload = t.step_func_done(() => { + const frame = iframe.contentWindow; + const before = frame[propertyName]; + assert_implements(before, `window.${propertyName} must be implemented`); + + frame.document.open(); + + const after = frame[propertyName]; + assert_equals(after, before); + + frame.document.close(); + }); + + iframe.src = "/common/blank.html"; + document.body.appendChild(iframe); + }, `document.open() must not replace window.${propertyName}`); +} diff --git a/testing/web-platform/tests/common/object-association.js.headers b/testing/web-platform/tests/common/object-association.js.headers new file mode 100644 index 0000000000..6805c323df --- /dev/null +++ b/testing/web-platform/tests/common/object-association.js.headers @@ -0,0 +1 @@ +Content-Type: text/javascript; charset=utf-8 |