diff --git a/test/helpers/getCodeFromSass.js b/test/helpers/getCodeFromSass.js
index eb2910f2..a336f3df 100644
--- a/test/helpers/getCodeFromSass.js
+++ b/test/helpers/getCodeFromSass.js
@@ -190,6 +190,22 @@ function getCodeFromSass(testId, options) {
     testFolder,
     'node_modules/sass-main-field/nested/style.sass'
   );
+  const pathToSCSSAlias = path.resolve(
+    testFolder,
+    'scss/directory-6/file/_index.scss'
+  );
+  const pathToSassAlias = path.resolve(
+    testFolder,
+    'sass/directory-6/file/_index.sass'
+  );
+  const pathToSCSSIndexAlias = path.resolve(
+    testFolder,
+    'scss/dir-with-underscore-index/_index.scss'
+  );
+  const pathToSassIndexAlias = path.resolve(
+    testFolder,
+    'sass/dir-with-underscore-index/_index.sass'
+  );
   const pathToScopedNpmPkg = path.resolve(
     testFolder,
     'node_modules/@org/pkg/index.scss'
@@ -628,6 +644,24 @@ function getCodeFromSass(testId, options) {
         .replace(/^~sass-main-field/, pathToSassMainField)
         .replace(/^~scss-custom-sass-field/, pathToSCSSCustomSassField)
         .replace(/^~sass-custom-sass-field/, pathToSassCustomSassField)
+        .replace(/^~@scss$/, pathToSCSSAlias)
+        .replace(/^~@sass$/, pathToSassAlias)
+        .replace(
+          /^~@path-to-scss-dir\/dir-with-underscore-index$/,
+          pathToSCSSIndexAlias
+        )
+        .replace(
+          /^~@path-to-sass-dir\/dir-with-underscore-index$/,
+          pathToSassIndexAlias
+        )
+        .replace(
+          /^~@\/path-to-scss-dir\/dir-with-underscore-index$/,
+          pathToSCSSIndexAlias
+        )
+        .replace(
+          /^~@\/path-to-sass-dir\/dir-with-underscore-index$/,
+          pathToSassIndexAlias
+        )
         .replace(/^~@org\/pkg/, pathToScopedNpmPkg)
         .replace(/^~bootstrap-sass$/, pathToBootstrap3Entry)
         .replace(/^~bootstrap-sass/, pathToBootstrap3Package)
diff --git a/test/loader.test.js b/test/loader.test.js
index 1c4e3dd8..ae5cb196 100644
--- a/test/loader.test.js
+++ b/test/loader.test.js
@@ -549,6 +549,24 @@ describe('loader', () => {
                 'another',
                 `alias.${syntax}`
               ),
+              '@sass': path.resolve(
+                __dirname,
+                'sass',
+                'directory-6',
+                'file',
+                '_index.sass'
+              ),
+              '@scss': path.resolve(
+                __dirname,
+                'scss',
+                'directory-6',
+                'file',
+                `_index.scss`
+              ),
+              '@path-to-scss-dir': path.resolve(__dirname, 'scss'),
+              '@path-to-sass-dir': path.resolve(__dirname, 'sass'),
+              '@/path-to-scss-dir': path.resolve(__dirname, 'scss'),
+              '@/path-to-sass-dir': path.resolve(__dirname, 'sass'),
             },
           },
           loader: { options },
diff --git a/test/sass/dir-with-underscore-index/_index.sass b/test/sass/dir-with-underscore-index/_index.sass
new file mode 100644
index 00000000..737e5b3c
--- /dev/null
+++ b/test/sass/dir-with-underscore-index/_index.sass
@@ -0,0 +1,2 @@
+.dir-with-underscore-index
+  color: red
diff --git a/test/sass/import-alias.sass b/test/sass/import-alias.sass
index 5ebbfdfe..241ddd62 100644
--- a/test/sass/import-alias.sass
+++ b/test/sass/import-alias.sass
@@ -1 +1,4 @@
-@import path-to-alias
+@import 'path-to-alias'
+@import "~@sass"
+@import "~@path-to-sass-dir/dir-with-underscore-index"
+@import "~@/path-to-sass-dir/dir-with-underscore-index"
diff --git a/test/scss/dir-with-underscore-index/_index.scss b/test/scss/dir-with-underscore-index/_index.scss
new file mode 100644
index 00000000..ebf9afe8
--- /dev/null
+++ b/test/scss/dir-with-underscore-index/_index.scss
@@ -0,0 +1,3 @@
+.dir-with-underscore-index {
+  color: red;
+}
diff --git a/test/scss/import-alias.scss b/test/scss/import-alias.scss
index 1b0a928f..64872db1 100644
--- a/test/scss/import-alias.scss
+++ b/test/scss/import-alias.scss
@@ -1 +1,4 @@
 @import 'path-to-alias';
+@import "~@scss";
+@import "~@path-to-scss-dir/dir-with-underscore-index";
+@import "~@/path-to-scss-dir/dir-with-underscore-index";