1 files changed, 33 insertions, 0 deletions
diff --git a/spec/frontend/matchers.js b/spec/frontend/matchers.js
index 35c362d0bf5..53c6a72eea0 100644
--- a/spec/frontend/matchers.js
+++ b/spec/frontend/matchers.js
@@ -35,4 +35,37 @@ export default {
       message: () => message,
     };
   },
+  toMatchInterpolatedText(received, match) {
+    let clearReceived;
+    let clearMatch;
+
+    try {
+      clearReceived = received
+        .replace(/\s\s+/gm, ' ')
+        .replace(/\s\./gm, '.')
+        .trim();
+    } catch (e) {
+      return { actual: received, message: 'The received value is not a string', pass: false };
+    }
+    try {
+      clearMatch = match.replace(/%{\w+}/gm, '').trim();
+    } catch (e) {
+      return { message: 'The comparator value is not a string', pass: false };
+    }
+    const pass = clearReceived === clearMatch;
+    const message = pass
+      ? () => `
+          \n\n
+          Expected: ${this.utils.printExpected(clearReceived)}
+          To not equal: ${this.utils.printReceived(clearMatch)}
+          `
+      : () =>
+          `
+        \n\n
+        Expected: ${this.utils.printExpected(clearReceived)}
+        To equal: ${this.utils.printReceived(clearMatch)}
+        `;
+
+    return { actual: received, message, pass };
+  },
 };