fix(web): proper disabling of prediction timeout for prediction unit tests

[jahorton]

While I'd previously added a "test mode" flag for use in prediction-oriented unit tests... it appears I somehow completely forgot to actually use it in the unit test specs. This remedies that little issue.

From the ModelCompositor definition in lm-worker:

keyman/common/web/lm-worker/src/main/model-compositor.ts

Lines 32 to 41 in 8a483fc

	private testMode: boolean = false
	constructor(lexicalModel: LexicalModel, testMode?: boolean) {
	this.lexicalModel = lexicalModel;
	if(lexicalModel.traverseFromRoot) {
	this.contextTracker = new correction.ContextTracker();
	}
	this.punctuation = ModelCompositor.determinePunctuationFromModel(lexicalModel);
	this.testMode = !!testMode;
	}

keyman/common/web/lm-worker/src/main/model-compositor.ts

Lines 243 to 244 in 8a483fc

	const SEARCH_TIMEOUT = this.testMode ? 0 : correction.SearchSpace.DEFAULT_ALLOTTED_CORRECTION_TIME_INTERVAL;
	for(let matches of searchSpace.getBestMatches(SEARCH_TIMEOUT)) {

But... so many unit tests forgot to actually specify the parameter. 😦

@keymanapp-test-bot skip

[keymanapp-test-bot]

User Test Results

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Test Artifacts

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[keyman-server]

Changes in this pull request will be available for download in Keyman version 17.0.197-alpha