Merge pull request #507 from Stratus3D/tb/asdf_sh_tests

asdf.sh tests

test/asdf_sh.bats

@@ -0,0 +1,71 @@
+#!/usr/bin/env bats
+
+load test_helpers
+
+# Helper function to handle sourcing of asdf.sh
+source_asdf_sh() {
+  . $(dirname "$BATS_TEST_DIRNAME")/asdf.sh
+}
+
+cleaned_path() {
+  echo $PATH | tr ':' '\n' | grep -v "asdf" | tr '\n' ':'
+}
+
+@test "exports ASDF_DIR" {
+  result=$(
+    unset -f asdf
+    unset ASDF_DIR
+    PATH=$(cleaned_path)
+
+    source_asdf_sh
+    echo $ASDF_DIR
+  )
+
+  output=$(echo "$result" | grep "asdf")
+  [ "$?" -eq 0 ]
+  [ "$output" != "" ]
+}
+
+@test "adds asdf dirs to PATH" {
+  result=$(
+    unset -f asdf
+    unset ASDF_DIR
+    PATH=$(cleaned_path)
+
+    source_asdf_sh
+    echo $PATH
+  )
+
+  output=$(echo "$result" | grep "asdf")
+  [ "$?" -eq 0 ]
+  [ "$output" != "" ]
+}
+
+@test "does not add paths to PATH more than once" {
+  result=$(
+    unset -f asdf
+    unset ASDF_DIR
+    PATH=$(cleaned_path)
+
+    source_asdf_sh
+    source_asdf_sh
+    echo $PATH
+  )
+
+  output=$(echo $PATH | tr ':' '\n' | grep "asdf" | sort | uniq -d)
+  [ "$?" -eq 0 ]
+  [ "$output" = "" ]
+}
+
+@test "defines the asdf function" {
+  output=$(
+    unset -f asdf
+    unset ASDF_DIR
+    PATH=$(cleaned_path)
+
+    source_asdf_sh
+    type asdf
+  )
+
+  [[ "$output" =~ "is a function" ]]
+}