Add test for list joining

[marekdedic]

The input rules for list joining are currently not tested, because without keymaps (#61), there is no way to "exit" a list (Enter is provided by the keymap)

[marekdedic]

prosemirror-remark/__tests__/syntax-extensions/OrderedListExtension.test.ts

Lines 345 to 365 in c5b10c2

	/*
	TODO: Fix this test of joining lists - probably \n != Enter key
	.shouldMatchInputRule(
	"1. Hello World!\n\n\n2. Second item",
	(schema) => [
	schema.nodes["ordered_list"].createAndFill({}, [
	schema.nodes["list_item"].createAndFill({}, [
	schema.nodes["paragraph"].createAndFill({}, [
	schema.text("Hello World!"),
	])!,
	])!,
	schema.nodes["list_item"].createAndFill({}, [
	schema.nodes["paragraph"].createAndFill({}, [
	schema.text("Second line"),
	])!,
	])!,
	])!,
	],
	"1. Hello World!\n2. Second item"
	)
	*/

prosemirror-remark/__tests__/syntax-extensions/UnorderedListExtension.test.ts

Lines 310 to 330 in c5b10c2

	/*
	TODO: Fix this test of joining lists - probably \n != Enter key
	.shouldMatchInputRule(
	"* Hello World!\n\n\n2. Second item",
	(schema) => [
	schema.nodes["bullet_list"].createAndFill({}, [
	schema.nodes["list_item"].createAndFill({}, [
	schema.nodes["paragraph"].createAndFill({}, [
	schema.text("Hello World!"),
	])!,
	])!,
	schema.nodes["list_item"].createAndFill({}, [
	schema.nodes["paragraph"].createAndFill({}, [
	schema.text("Second line"),
	])!,
	])!,
	])!,
	],
	"* Hello World!\n2. Second item"
	)
	*/