angular-docs-cn/packages/upgrade
George Kalpakas 4e17212d44 test(upgrade): properly clean up after tests to avoid errors in unrelated tests (#28013)
Many `ngUpgrade` tests need to manually [bootstrap modules][1] (instead
of using `TestBed` which automatically cleans up) and thus need to also
manually clean up afterwards (e.g. by calling [destroyPlatform()][2]
after each test).

Failing to destroy the platform is usually not a problem, unless the
next test tries to manually destroy it (as a precaution), as happens
[here][3] (among other places).

More specifically, the problem happens, because (as part of the clean-up
happening on platform destruction) upgraded components will try to
[call a method][4] on `angular.element` after `angular` has been
[set to `undefined`][5] (assuming the last test was using the
[withEachNg1Version()][6] helper).

Because the test order is pseudo-random and thus different on each run,
these errors did not always come up and - when they did- they would go
away after a couple of reruns, making them appear as flakes on CI.

(For reference, the issue was introduced in 43c33d566.)

This commit eliminates the issue by always destroying the platform after
each `ngUpgrade` test.

Jira issue: FW-924

[1]: c3aa24c3f9/packages/upgrade/test/static/test_helpers.ts (L21)
[2]: c3aa24c3f9/packages/upgrade/test/static/integration/upgrade_component_spec.ts (L24)
[3]: c3aa24c3f9/packages/elements/test/create-custom-element_spec.ts (L31)
[4]: c3aa24c3f9/packages/upgrade/src/common/upgrade_helper.ts (L134-L135)
[5]: c3aa24c3f9/packages/upgrade/test/common/test_helpers.ts (L115)
[6]: c3aa24c3f9/packages/upgrade/test/common/test_helpers.ts (L31)

PR Close #28013
2019-01-09 10:27:46 -08:00
..
src refactor: remove redundant error in catch (#25478) 2019-01-04 15:42:19 -08:00
static build(upgrade): use correct sources in `BUILD.bazel` (#24937) 2018-08-06 14:52:50 -07:00
test test(upgrade): properly clean up after tests to avoid errors in unrelated tests (#28013) 2019-01-09 10:27:46 -08:00
BUILD.bazel build: restrict visibility of npm_package targets (#27611) 2018-12-14 10:20:40 -08:00
PACKAGE.md docs: add package doc files (#26047) 2018-10-05 15:42:14 -07:00
index.ts refactor: move angular source to /packages rather than modules/@angular 2017-03-08 16:29:27 -08:00
package.json feat: update the package output of build.sh to APF v6 (#22808) 2018-03-18 09:33:51 -07:00
public_api.ts build: publish tree of files rather than FESMs (#18541) 2017-08-31 15:34:50 -07:00
rollup.config.js feat(core): upgrade rxjs to 6.0.0-alpha.4 (#22573) 2018-03-19 21:51:51 -07:00
tsconfig-build.json build: remove references to `tsc-wrapped` (#19298) 2017-09-21 13:55:52 -07:00