diff --git a/test/install_script/nvm_detect_profile b/test/install_script/nvm_detect_profile
index 08aea82..8676bcf 100755
--- a/test/install_script/nvm_detect_profile
+++ b/test/install_script/nvm_detect_profile
@@ -22,46 +22,80 @@
 
 setup
 
+#Let's force $SHELL to be bash
+SHELL="/bin/bash"
+
+# $SHELL is set to bash and .bashrc is there, it must be detected
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.bashrc" ] || echo "_\$HOME/.bashrc: _$HOME/.bashrc\n" \
+                                       echo "_\$_PROFILE: _$_PROFILE\n" \
+                                       die "nvm_detect_profile didn't pick $SHELL and $HOME/.bashrc"
+
+#Let's force $SHELL to be zsh
+SHELL="/usr/bin/zsh"
+
+# $SHELL is set to zsh and .zshrc is there, it must be detected
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.zshrc" ] || echo "_\$HOME/.zshrc: _$HOME/.zshrc\n" \
+                                      echo "_\$_PROFILE: _$_PROFILE\n" \
+                                      die "nvm_detect_profile didn't pick $SHELL and $HOME/.zshrc"
+
+
+# if we unset shell it looks for the files
+unset SHELL
 
 # $PROFILE points to a valid file, its path must be returned
 PROFILE="test_profile"
 _PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" = "_$PROFILE" ] || die "nvm_detect_profile didn't pick \$PROFILE"
+[ "_$_PROFILE" = "_$PROFILE" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                  echo "_\$PROFILE: _$PROFILE\n" \
+                                  die "nvm_detect_profile didn't pick \$PROFILE"
 
 # $PROFILE doesn't point to a valid file, its path must not be returned
 PROFILE="invalid_profile"
 _PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" != "_$PROFILE" ] || die "nvm_detect_profile shouldn't pick \$PROFILE when it's not a valid file"
+[ "_$_PROFILE" != "_$PROFILE" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                   echo "_\$PROFILE: _$PROFILE\n" \
+                                   die "nvm_detect_profile shouldn't pick \$PROFILE when it's not a valid file"
 
 
 # Below are tests for when $PROFILE is undefined
 rm test_profile
 unset PROFILE
 
-# It should favor .bashrc if file exists
+# It should favor .profile if file exists
 _PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" = "_$HOME/.bashrc" ] || die "nvm_detect_profile should have selected .bashrc"
+[ "_$_PROFILE" = "_$HOME/.profile" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                        echo "_\$PROFILE: _$PROFILE\n" \
+                                        die "nvm_detect_profile should have selected .profile"
+
+rm .profile
+# Otherwise, it should favor .bashrc if file exists
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.bashrc" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                       echo "_\$PROFILE: _$PROFILE\n" \
+                                       die "nvm_detect_profile should have selected .bashrc"
 
 rm .bashrc
 # Otherwise, it should favor .bash_profile if file exists
 _PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" = "_$HOME/.bash_profile" ] || die "nvm_detect_profile should have selected .bash_profile"
+[ "_$_PROFILE" = "_$HOME/.bash_profile" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                             echo "_\$PROFILE: _$PROFILE\n" \
+                                             die "nvm_detect_profile should have selected .bash_profile"
 
 rm .bash_profile
 # Otherwise, it should favor .zshrc if file exists
 _PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" = "_$HOME/.zshrc" ] || die "nvm_detect_profile should have selected .zshrc"
+[ "_$_PROFILE" = "_$HOME/.zshrc" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                                      echo "_\$PROFILE: _$PROFILE\n" \
+                                      die "nvm_detect_profile should have selected .zshrc"
 
 rm .zshrc
-# Otherwise, it should favor .profile if file exists
-_PROFILE=$(nvm_detect_profile)
-[ "_$_PROFILE" = "_$HOME/.profile" ] || die "nvm_detect_profile should have selected .profile"
-
-rm .profile
 # It should be empty if none is found
 _PROFILE=$(nvm_detect_profile)
-[ -z "$_PROFILE" ] || die "nvm_detect_profile should have echo'ed an empty value"
+[ -z "$_PROFILE" ] || echo "_\$_PROFILE: _$_PROFILE\n" \
+                      echo "_\$PROFILE: _$PROFILE\n" \
+                      die "nvm_detect_profile should have echo'ed an empty value"
 
 
 cleanup
-