Fix corrupted zip archive in case of same module

Author: st4lk

lib/inject.js

@@ -95,7 +95,7 @@ function injectAllRequirements() {
       .map(func => {
         if (func.module !== '.') {
           const artifact = func.package.artifact;
-          const newArtifact = path.join('.serverless', `${func.module}.zip`);
+          const newArtifact = path.join('.serverless', `${func.module}-${func.name}.zip`);
           func.package.artifact = newArtifact;
           return moveModuleUp(artifact, newArtifact, func.module).then(
             () => func

test.bats

@@ -197,8 +197,8 @@ teardown() {
     cd tests/individually
     npm i $(npm pack ../..)
     sls package
-    unzip .serverless/module1.zip -d puck
-    unzip .serverless/module2.zip -d puck2
+    unzip .serverless/module1-sls-py-req-test-indiv.zip -d puck
+    unzip .serverless/module2-sls-py-req-test-indiv.zip -d puck2
     ls puck/handler1.py
     ls puck2/handler2.py
     ls puck/pyaml