Support symlinked test files - fixes #1143 (#1145)

api.js

@@ -2,6 +2,7 @@
 var EventEmitter = require('events').EventEmitter;
 var path = require('path');
 var util = require('util');
+var fs = require('fs');
 var commonPathPrefix = require('common-path-prefix');
 var uniqueTempDir = require('unique-temp-dir');
 var findCacheDir = require('find-cache-dir');
@@ -67,7 +68,8 @@ module.exports = Api;
 Api.prototype._runFile = function (file, runStatus, execArgv) {
 	var hash = this.precompiler.precompileFile(file);
 	var precompiled = {};
-	precompiled[file] = hash;
+	var resolvedfpath = fs.realpathSync(file);
+	precompiled[resolvedfpath] = hash;
 
 	var options = objectAssign({}, this.options, {
 		precompiled: precompiled

test/api.js

@@ -491,6 +491,28 @@ function generateTests(prefix, apiCreator) {
 			});
 	});
 
+	test(prefix + 'symlink to directory containing test files', function (t) {
+		t.plan(1);
+
+		var api = apiCreator();
+
+		return api.run([path.join(__dirname, 'fixture/symlink')])
+			.then(function (result) {
+				t.is(result.passCount, 1);
+			});
+	});
+
+	test(prefix + 'symlink to test file directly', function (t) {
+		t.plan(1);
+
+		var api = apiCreator();
+
+		return api.run([path.join(__dirname, 'fixture/symlinkfile.js')])
+			.then(function (result) {
+				t.is(result.passCount, 1);
+			});
+	});
+
 	test(prefix + 'search directories recursively for files', function (t) {
 		t.plan(2);
 

test/fixture/symlink

@@ -0,0 +1 @@
+./symlinkdir

test/fixture/symlinkdir/symlink.js

@@ -0,0 +1,5 @@
+import test from '../../../';
+
+test(t => {
+	t.pass();
+});

test/fixture/symlinkfile.js

@@ -0,0 +1 @@
+./target-symlink.js

test/fixture/target-symlink.js

@@ -0,0 +1,5 @@
+import test from '../../';
+
+test(t => {
+	t.pass();
+});