Fix bug importing from multiple sources

EECOLOR · EECOLOR · commit 62ea2850a17e · 2019-12-05T10:39:52.000+01:00
diff --git a/.tape.js b/.tape.js
@@ -84,6 +84,14 @@ module.exports = {
 			expect: 'basic.import.expect.css',
 			result: 'basic.import.result.css'
 		},
+		'basic:import-css-from-multiple-files': {
+			message: 'supports { importFrom: ["test/empty.css", "test/import-selectors.css"] } usage',
+			options: {
+				importFrom: ["test/empty.css", "test/import-selectors.css"]
+			},
+			expect: 'basic.import.expect.css',
+			result: 'basic.import.result.css'
+		},
 		'basic:import-css-from-type': {
 			message: 'supports { importFrom: [ { from: "test/import-selectors.css", type: "css" } ] } usage',
 			options: {
diff --git a/lib/import-from.js b/lib/import-from.js
@@ -81,7 +81,8 @@ export default function importCustomSelectorsFromSources(sources) {
 		const type = (opts.type || path.extname(from).slice(1)).toLowerCase();
 
 		return { type, from };
-	}).reduce(async (customSelectors, source) => {
+	}).reduce(async (customSelectorsPromise, source) => {
+		const customSelectors = await customSelectorsPromise
 		const { type, from } = await source;
 
 		if (type === 'ast') {
@@ -101,7 +102,7 @@ export default function importCustomSelectorsFromSources(sources) {
 		}
 
 		return Object.assign(customSelectors, importCustomSelectorsFromObject(await source));
-	}, {});
+	}, Promise.resolve({}));
 }
 
 /* Helper utilities
diff --git a/test/empty.css b/test/empty.css

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,8 @@ export default function importCustomSelectorsFromSources(sources) {`
`81`	`81`	`const type = (opts.type \|\| path.extname(from).slice(1)).toLowerCase();`
`82`	`82`
`83`	`83`	`return { type, from };`
`84`		`- }).reduce(async (customSelectors, source) => {`
	`84`	`+ }).reduce(async (customSelectorsPromise, source) => {`
	`85`	`+ const customSelectors = await customSelectorsPromise`
`85`	`86`	`const { type, from } = await source;`
`86`	`87`
`87`	`88`	`if (type === 'ast') {`
`@@ -101,7 +102,7 @@ export default function importCustomSelectorsFromSources(sources) {`
`101`	`102`	`}`
`102`	`103`
`103`	`104`	`return Object.assign(customSelectors, importCustomSelectorsFromObject(await source));`
`104`		`- }, {});`
	`105`	`+ }, Promise.resolve({}));`
`105`	`106`	`}`
`106`	`107`
`107`	`108`	`/* Helper utilities`