1 files changed, 49 insertions, 0 deletions
diff --git a/node_modules/jest-pnp-resolver/index.js b/node_modules/jest-pnp-resolver/index.js
new file mode 100644
index 0000000..a61a577
--- /dev/null
+++ b/node_modules/jest-pnp-resolver/index.js
@@ -0,0 +1,49 @@
+let globalPnpApi;
+try {
+    globalPnpApi = require(`pnpapi`);
+} catch {
+    // Just ignore if we don't have a global PnP instance - perhaps
+    // we'll eventually find one at runtime due to multi-tree
+}
+
+const createRequire = require(`./createRequire`);
+const getDefaultResolver = require(`./getDefaultResolver`);
+
+module.exports = (request, options) => {
+  const {basedir, defaultResolver, extensions} = options;
+
+  if (process.versions.pnp) {
+    let pnpApi = globalPnpApi;
+
+    // While technically it would be more correct to run this code
+    // everytime (since they file being run *may* belong to a
+    // different dependency tree than the one owning Jest), in
+    // practice this doesn't happen anywhere else than on the Jest
+    // repository itself (in the test env). So in order to preserve
+    // the performances, we can afford a slight incoherence here.
+    if (!pnpApi) {
+      try {
+        const baseReq = createRequire(`${basedir}/internal.js`);
+        pnpApi = baseReq(`pnpapi`);
+      } catch {
+        // The file isn't part of a PnP dependency tree, so we can
+        // just use the default Jest resolver.
+      }
+    }
+
+    if (pnpApi) {
+      const resolution = pnpApi.resolveRequest(request, `${basedir}/`, {extensions});
+
+      // When the request is a native module, Jest expects to get the string back unmodified, but pnp returns null instead.
+      if (resolution === null)
+        return request;
+
+      return resolution;
+    }
+  }
+
+  if (!defaultResolver)
+    defaultResolver = getDefaultResolver();
+
+  return defaultResolver(request, {...options, allowPnp: false});
+};