fix(auto-exec-bin): fix test bug

- replace bash command with source to update current bash PATH
and not a sub-bash one
- replace binary with simple bash script - image has no access to
internet
- update subject accordingly

sh/tests/auto-exec-bin_test.sh

@@ -14,23 +14,20 @@ setupbin() {
         echo "bin already exists!"
     else
         mkdir -p ~/myBins
-        curl -o ~/myBins/01exec https://assets.01-edu.org/devops-branch/01exec
-        chmod +x ~/myBins/01exec
-        echo "bin installed!"
+        echo "echo Hello 01 Scripting Pool" > $HOME/myBins/01exec
     fi
+    chmod +x $HOME/myBins/01exec
 }
 
 challenge() {
+    OLD_PATH=$PATH
     # run soultion script
-    export PATH=""
-
-   	$(bash "$script_dirS"/$FILENAME)
+    source "$script_dirS"/$FILENAME
 	submitted=$(cd / && 01exec)
 
+    PATH=$OLD_PATH
     # run student script
-    export PATH=""
-
-	$(bash "$script_dirS"/solutions/auto-exec-bin.sh)
+	source "$script_dirS"/solutions/auto-exec-bin.sh
 	expected=$(cd / && 01exec)
 
     # diff

subjects/devops/auto-exec-bin/README.md

@@ -4,8 +4,8 @@
 
 Create a file `auto-exec-bin.sh`, which will make a binary with the name `01exec` in `~/myBins` executable from any working directory.
 
-You can use any binary from your choice or you can use our binary: [01exec](https://assets.01-edu.org/devops-branch/01exec)
-> If our binary is not working in your environment, you can pick any binary for the tests!
+You can use any binary from your choice to test your script.
+>  You can pick any binary for the tests!
 
 Expected Output:
 
@@ -25,7 +25,8 @@ $
 ### Hints
 
 `PATH` environment variable is a variable where the shell search for the binaries for the execution.
-when you put a command the shell will search for binary in `PATH` folders
+
+When you put a command the shell will search for binary in `PATH` folders
 
 ![auto binary exec](https://assets.01-edu.org/devops-branch/auto-exec-diagram.png)