Setup urchin tests with test for loading

.gitignore

@@ -1 +1,2 @@
+tests/.urchin.log
 previous_version

tests/common.sh

@@ -0,0 +1,11 @@
+export test_dir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+export repo_dir="$test_dir/.."
+
+die () {
+  echo $@
+  exit 1
+}
+
+load_zsh_nvm() {
+  source "$repo_dir/zsh-nvm.plugin.zsh"
+}

tests/loading/Check zsh-nvm is loaded

@@ -0,0 +1,10 @@
+source ../common.sh
+
+# Check ZSH_NVM_DIR isn't already set
+[[ -z ${ZSH_NVM_DIR+x} ]] || die "ZSH_NVM_DIR already set"
+
+# Load zsh-nvm
+load_zsh_nvm
+
+# Check ZSH_NVM_DIR is now set
+[[ ! -z ${ZSH_NVM_DIR+x} ]] || die "ZSH_NVM_DIR wasn't set"