Run ww_activate script on linux workspace activation

On Linux, this script was already being created for this purpose, but it was not
being executed. On Windows it was working correctly.

test_ww

@@ -1,45 +1,22 @@
 #!/bin/bash
-
-assert_equal() {
-    if [ $1 != $2 ]; then
-        errorOut "Assertion failed: $1 is not equal to $2'"
-    fi
-}
+# load test tools
+. ./testing/test_tools
 
 test_can_activate_workspace() {
-    echo ""
-    echo "Testing ${FUNCNAME[0]}"
-    echo ""
-
-    local test_dir=$(pwd)
-
-    mkdir $test_dir/temp-ww-workdir
-    export WW_DEFAULT_PATH=$test_dir/temp-ww-workdir
-
+    # create and activate workspace 'ws1'
     $test_dir/ww -c ws1
     source ./ww ws1
 
     # check that the correct workspace was activated
     assert_equal $WW_CURRENT_WORKSPACE ws1
     assert_equal $CONDA_ENVS_PATH $test_dir/temp-ww-workdir/ws1/envs
-
-    cd $test_dir
-    rm -rf temp-ww-workdir
 }
 
 
-test_can_activate_current() {
-    echo ""
-    echo "Testing ${FUNCNAME[0]}"
-    echo ""
-    local test_dir=$(pwd)
-
-    mkdir $test_dir/temp-ww-workdir
-    export WW_DEFAULT_PATH=$test_dir/temp-ww-workdir
-
+test_can_activate_current() {    
     $test_dir/ww -c ws2
 
-    cd ./temp-ww-workdir/ws2/Projects
+    cd $WW_DEFAULT_PATH/ws2/Projects
 
     local cwd_before=$(pwd)
     source $test_dir/ww .
@@ -51,12 +28,26 @@ test_can_activate_current() {
     # check that the correct workspace was activated
     assert_equal $WW_CURRENT_WORKSPACE ws2
     assert_equal $CONDA_ENVS_PATH $test_dir/temp-ww-workdir/ws2/envs
+}
 
-    cd $test_dir
-    rm -rf temp-ww-workdir
+test_ww_activate_script_is_called() {
+    $test_dir/ww -c ws1
+
+    echo "export TEMP_TEST_VAR=1" >> $WW_DEFAULT_PATH/ws1/ww_activate.sh
+
+    source ./ww ws1
+
+    # check that the correct workspace was activated
+    assert_equal $WW_CURRENT_WORKSPACE ws1
+    assert_equal $TEMP_TEST_VAR 1
 }
 
 echo "Testing file test_ww"
-test_can_activate_workspace
-test_can_activate_current
-echo "Success"
+echo ""
+
+test "test_can_activate_workspace"
+test "test_can_activate_current"
+test "test_ww_activate_script_is_called"
+
+echo ""
+printGreen "Success"

testing/test_tools

@@ -0,0 +1,62 @@
+#!/bin/bash
+test() {
+    local test_function=$1
+
+    echo -n "Testing ${test_function} ... "
+
+    setup
+
+    # run test function
+    output=$($test_function)
+    failed=$?
+
+    tier_down
+
+    if [ $failed != 0 ]; then
+      printRed "Failed"
+      echo ""
+      echo "------------ Test Output ------------"
+      echo "$test_function:"
+      echo "$output"
+      exit 1
+    fi
+
+    printGreen "Success"
+}
+
+setup() {
+    test_dir=$(pwd)
+
+    rm -rf temp-ww-workdir
+    mkdir $test_dir/temp-ww-workdir
+    export WW_DEFAULT_PATH=$test_dir/temp-ww-workdir
+}
+
+tier_down() {
+    cd $test_dir
+    rm -rf temp-ww-workdir
+}
+
+assert_equal() {
+    if [ $1 != $2 ]; then
+        testErrorOut "Assertion failed: $1 is not equal to $2'"
+    fi
+}
+
+testErrorOut() {
+  printRed "ERROR: $@" 
+  exit 1
+}
+
+printGreen() {
+    green=`tput setaf 2`
+    reset=`tput sgr0`
+    echo "${green}$1${reset}"
+}
+
+printRed() {
+    red=`tput setaf 1`
+    reset=`tput sgr0`
+    echo "${red}$1${reset}"
+}
+

ww

@@ -36,6 +36,12 @@ activate() {
   if [[ -n $WW_CONDA_PKGS_PATH ]]; then
     export CONDA_PKGS_PATH=$WW_CONDA_PKGS_PATH
   fi
+
+  # Run ww_activate.sh script if one exists
+  ACTIVATE_SCRIPT="${workspace}/ww_activate.sh"
+  if [ -f "$ACTIVATE_SCRIPT" ]; then
+    . "$ACTIVATE_SCRIPT"
+  fi
 }
 
 activate_current() {