Fix dart2wasm tests with custom HTML files (#2626)

When running tests with `dart2wasm` and a custom HTML file, the JS bootstrap file `run_wasm_chrome.js` failed because it tried to read `dataset` from a DOM element with ID `WasmBootstrapInfo`, which is not present in custom HTML files.

This commit updates `run_wasm_chrome.js` to fallback to inferring the `.wasm` and `.mjs` URLs from `document.currentScript.src` if the `WasmBootstrapInfo` element is not found.

Added a regression test to verify the fix.

Fixes #2625
7 files changed
tree: 940ba9becaf60b5ef0e33eebb07770f1e83677d2
  1. .github/
  2. integration_tests/
  3. pkgs/
  4. tool/
  5. .gitattributes
  6. .gitignore
  7. analysis_options.yaml
  8. CODEOWNERS
  9. CONTRIBUTING.md
  10. mono_repo.yaml
  11. pubspec.yaml
  12. README.md
README.md

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What's here?

Welcome! package:test is the standard testing library for Dart and Flutter. If you have questions about Dart testing, please see the docs for package:test. package:test_api and package:test_core are implementation details and generally not user-facing.

package:checks is a relatively new library for expressing test expectations. It's a more modern version of package:matcher and features a literate API.

Packages

PackageDescriptionIssuesVersion
checksA framework for checking values against expectations and building custom expectations.issuespub package
fake_asyncFake asynchronous events such as timers and microtasks for deterministic testing.issuespub package
matcherSupport for specifying test expectations via an extensible Matcher class. Also includes a number of built-in Matcher implementations for common cases.issuespub package
testA full featured library for writing and running Dart tests across platforms.issuespub package
test_apiThe user facing API for structuring Dart tests and checking expectations.pub package
test_coreA basic library for writing tests and running them on the VM.pub package
test_descriptorAn API for defining and verifying files and directory structures.issuespub package
test_processTest processes: starting; validating stdout and stderr; checking exit code.issuespub package