jest-preset-angular
Version:
Jest preset configuration for Angular projects
49 lines (48 loc) • 1.92 kB
JavaScript
;
const attributesToRemovePatterns = ['__ngContext__'];
const removeTrailingWhiteSpaces = (serializedComponent) => {
return serializedComponent.replace(/\n^\s*\n/gm, '\n');
};
const print = (fixture, printer, indent, opts, colors) => {
const { componentRef, componentInstance } = fixture;
const componentDef = componentRef.componentType.ɵcmp;
const componentName = componentDef.selectors[0][0];
const nodes = Array.from(componentRef.location.nativeElement.childNodes).map(printer).join('');
let serializedComponent = '';
if (opts.omitAllCompAttrs) {
serializedComponent = '<' + componentName + '>\n' + indent(nodes) + '\n</' + componentName + '>';
}
else {
const attributes = Object.keys(componentInstance).filter((key) => !attributesToRemovePatterns.includes(key));
const componentAttrs = attributes
.sort()
.map((attribute) => {
const compAttrVal = componentInstance[attribute];
return (opts.spacing +
indent(`${colors.prop.open}${attribute}${colors.prop.close}=`) +
colors.value.open +
(compAttrVal && compAttrVal.constructor
? `{[Function ${compAttrVal.constructor.name}]}`
: `"${compAttrVal}"`) +
colors.value.close);
})
.join('');
serializedComponent =
'<' +
componentName +
componentAttrs +
(componentAttrs.length ? '\n' : '') +
'>\n' +
indent(nodes) +
'\n</' +
componentName +
'>';
}
serializedComponent = removeTrailingWhiteSpaces(serializedComponent);
return serializedComponent;
};
const test = (val) => !!val && typeof val === 'object' && 'componentRef' in val;
module.exports = {
print,
test,
};