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Bugfix for using general sibling selector on root #1698

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merged 2 commits into from
Jun 30, 2018
Merged

Bugfix for using general sibling selector on root #1698

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01f1af9
[Refactor] `selectors`: clean up `matchDirectChild`, `matchGeneralSib…
krawaller Jun 29, 2018
0d446f4
[Fix] `selectors`: make general sibling not throw on root
krawaller Jun 29, 2018
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[Refactor] selectors: clean up matchDirectChild, `matchGeneralSib… 
…ling`, `reduceTreeBySelector`
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@krawaller @ljharb
krawaller authored and ljharb committed Jun 29, 2018
commit 01f1af9224ab2238e29fcbec7fe5be677386b74d
30 changes: 11 additions & 19 deletions packages/enzyme/src/selectors.js
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Original file line number Diff line number Diff line change
Expand Up @@ -304,12 +304,8 @@ function matchGeneralSibling(nodes, predicate, root) {
return uniqueReduce((matches, node) => {
const parent = findParentNode(root, node);
const nodeIndex = parent.rendered.indexOf(node);
parent.rendered.forEach((sibling, i) => {
if (i > nodeIndex && predicate(sibling)) {
matches.push(sibling);
}
});
return matches;
const youngerSiblings = parent.rendered.slice(nodeIndex + 1);
return matches.concat(youngerSiblings.filter(predicate));
}, nodes);
}

Expand All @@ -320,15 +316,10 @@ function matchGeneralSibling(nodes, predicate, root) {
* @param {Function} predicate
*/
function matchDirectChild(nodes, predicate) {
return uniqueReduce((matches, node) => {
const children = childrenOfNode(node);
children.forEach((child) => {
if (predicate(child)) {
matches.push(child);
}
});
return matches;
}, nodes);
return uniqueReduce(
(matches, node) => matches.concat(childrenOfNode(node).filter(predicate)),
nodes,
);
}

/**
Expand All @@ -353,11 +344,12 @@ function matchDescendant(nodes, predicate) {
* @param {RSTNode} wrapper
*/
export function reduceTreeBySelector(selector, root) {
let results = [];

if (typeof selector === 'function' || typeof selector === 'object') {
results = treeFilter(root, buildPredicate(selector));
} else if (typeof selector === 'string') {
return treeFilter(root, buildPredicate(selector));
}

let results = [];
if (typeof selector === 'string') {
const tokens = safelyGenerateTokens(selector);
let index = 0;
let token = null;
Expand Down