Change 864782 had a related patch set uploaded (by Teleosteen; author: Teleosteen):

[mediawiki/extensions/WikiLambda@master] Fix functions for tests and implementations are not preselected

https://gerrit.wikimedia.org/r/864782

Change 864783 had a related patch set uploaded (by Teleosteen; author: Teleosteen):

[mediawiki/extensions/WikiLambda@master] Implement tests

https://gerrit.wikimedia.org/r/864783

I made 2 patches:

• the first is the implementation;
• the second are the tests;

For the second, I upgraded some node modules in order to have a convenient method (otherwise I could not figure how to test well my patch). And it was a bit hard, so I made a separate commit, in case the tests need to be reworked correctly.

Also 2 questions:

• I changed an instance of <z-object-selector> to a <z-reference> in ZImplementation.vue. What are the differences between the two of them?
• If this change is right, I wonder if therefore we could not even replace this code in ZImplementation.vue:

			<z-reference
				v-if="!viewmode && zFunction && implMode && isFunctionLabelReady"
				class="ext-wikilambda-zimplementation__function-selector"
				:search-type="Constants.Z_FUNCTION"
				:placeholder="$i18n( 'wikilambda-function-typeselector-label' ).text()"
				:zobject-id="zFunction.id"
				:zobject-key="zFunction.value"
			></z-reference>
			<template v-else>
				<z-reference
					v-if="zFunction.value"
					:zobject-key="zFunction.value"
					:readonly="true"
				></z-reference> ...
                        </template>

by this one:

			<z-reference
				v-if="zFunction"
				class="ext-wikilambda-zimplementation__function-selector"
                                :readonly="viewmode || !implMode || !isFunctionLabelReady"
				:search-type="Constants.Z_FUNCTION"
				:placeholder="$i18n( 'wikilambda-function-typeselector-label' ).text()"
				:zobject-id="zFunction.id"
				:zobject-key="zFunction.value"
			></z-reference>

The z-object-selector is more generic and can handle any kind of change in its parent (eg a changeType, adding a language etc). However, how z-object-selector is implemented in ZImplementation it is indeed the same as a z-reference update (updating setZObjectValue). So it could be refactored, and then yes I agree even further refactored as per your suggestion above.
@JKieserman to confirm all please!

I made the refactoration (with the hope @JKieserman will approve that move :) )

Change 864783 abandoned by Teleosteen:

[mediawiki/extensions/WikiLambda@master] Tests that functions for tests and implementations are preseleted

Reason:

Patch squashed into 864782

https://gerrit.wikimedia.org/r/864783

(moved to Goal 9 as it is about Testers and Implementations)

Change 864782 abandoned by Jforrester:

[mediawiki/extensions/WikiLambda@master] Fix functions for tests and implementations are not preselected

Reason:

Now fixed a different way, see comment on task.

https://gerrit.wikimedia.org/r/864782