1 files changed, 30 insertions, 0 deletions
diff --git a/spec/frontend/__helpers__/matchers/to_match_interpolated_text.js b/spec/frontend/__helpers__/matchers/to_match_interpolated_text.js
new file mode 100644
index 00000000000..4ce814a01b4
--- /dev/null
+++ b/spec/frontend/__helpers__/matchers/to_match_interpolated_text.js
@@ -0,0 +1,30 @@
+export const 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 };
+};