feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 57 insertions, 0 deletions

diff --git a/vanilla/node_modules/stackback/formatstack.js b/vanilla/node_modules/stackback/formatstack.js
new file mode 100644
index 0000000..d64307d
--- /dev/null
+++ b/vanilla/node_modules/stackback/formatstack.js
@@ -0,0 +1,57 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+function FormatStackTrace(error, frames) {
+    var lines = [];
+    try {
+        lines.push(error.toString());
+    } catch (e) {
+        try {
+            lines.push("<error: " + e + ">");
+        } catch (ee) {
+            lines.push("<error>");
+        }
+    }
+    for (var i = 0; i < frames.length; i++) {
+        var frame = frames[i];
+        var line;
+        try {
+            line = frame.toString();
+        } catch (e) {
+            try {
+                line = "<error: " + e + ">";
+            } catch (ee) {
+                // Any code that reaches this point is seriously nasty!
+                line = "<error>";
+            }
+        }
+        lines.push("    at " + line);
+    }
+    return lines.join("\n");
+}
+
+module.exports = FormatStackTrace;