support for old versions of node

Author: dubzzz

e2e/__tests__/__snapshots__/toThrowErrorMatchingInlineSnapshot.test.ts.snap

@@ -20,12 +20,19 @@ exports[`updates existing snapshot: updated snapshot 1`] = `
 
 exports[`works fine when function throws error with cause: initial write with cause 1`] = `
 "test('works fine when function throws error', () => {
+  function ErrorWithCause(message, cause) {
+    const err = new Error(message, {cause});
+    if (err.cause !== cause) {
+      // cause does not exist in old versions of node
+      err.cause = cause;
+    }
+    return err;
+  }
   expect(() => {
-    throw new Error('apple', {
-      cause: new Error('banana', {
-        cause: new Error('orange'),
-      }),
-    });
+    throw ErrorWithCause(
+      'apple',
+      ErrorWithCause('banana', ErrorWithCause('orange')),
+    );
   }).toThrowErrorMatchingInlineSnapshot(\`
     "apple
     Cause: banana
@@ -37,10 +44,16 @@ exports[`works fine when function throws error with cause: initial write with ca
 
 exports[`works fine when function throws error with string cause: initial write with cause 1`] = `
 "test('works fine when function throws error', () => {
+  function ErrorWithCause(message, cause) {
+    const err = new Error(message, {cause});
+    if (err.cause !== cause) {
+      // cause does not exist in old versions of node
+      err.cause = cause;
+    }
+    return err;
+  }
   expect(() => {
-    throw new Error('apple', {
-      cause: 'here is a cause',
-    });
+    throw ErrorWithCause('apple', 'here is a cause');
   }).toThrowErrorMatchingInlineSnapshot(\`
     "apple
     Cause: here is a cause"

e2e/__tests__/toThrowErrorMatchingInlineSnapshot.test.ts

@@ -47,12 +47,20 @@ test('works fine when function throws error with cause', () => {
   const filename = 'works-fine-when-function-throws-error-with-cause.test.js';
   const template = makeTemplate(`
     test('works fine when function throws error', () => {
+      function ErrorWithCause(message, cause) {
+        const err = new Error(message, {cause});
+        if (err.cause !== cause) {
+          // cause does not exist in old versions of node
+          err.cause = cause;
+        }
+        return err;
+      }
       expect(() => {
-        throw new Error('apple', {
-          cause: new Error('banana', {
-            cause: new Error('orange')
-          })
-        });
+        throw ErrorWithCause('apple',
+          ErrorWithCause('banana',
+            ErrorWithCause('orange')
+          )
+        );
       })
         .toThrowErrorMatchingInlineSnapshot();
     });
@@ -73,10 +81,16 @@ test('works fine when function throws error with string cause', () => {
     'works-fine-when-function-throws-error-with-string-cause.test.js';
   const template = makeTemplate(`
     test('works fine when function throws error', () => {
+      function ErrorWithCause(message, cause) {
+        const err = new Error(message, {cause});
+        if (err.cause !== cause) {
+          // cause does not exist in old versions of node
+          err.cause = cause;
+        }
+        return err;
+      }
       expect(() => {
-        throw new Error('apple', {
-          cause: 'here is a cause'
-        });
+        throw ErrorWithCause('apple', 'here is a cause');
       })
         .toThrowErrorMatchingInlineSnapshot();
     });