test: cover _pure_prompt_k8s and add mocks helpers

functions/_pure_prompt_k8s.fish

@@ -1,5 +1,8 @@
 function _pure_prompt_k8s
- if $pure_enable_k8s; and _pure_check_availability pure_enable_k8s kubectl
+ if set --query pure_enable_k8s;
+ and test "$pure_enable_k8s" = true;
+ and _pure_check_availability pure_enable_k8s kubectl
+
  set -l context (_pure_set_color $pure_color_k8s_context)(_pure_k8s_context)
  set -l namespace (_pure_set_color $pure_color_k8s_namespace)(_pure_k8s_namespace)
  echo "$pure_symbol_k8s_prefix $context/$namespace"

tests/_pure_prompt_k8s.test.fish

@@ -0,0 +1,38 @@
+source (dirname (status filename))/fixtures/constants.fish
+source (dirname (status filename))/mocks/mocks.fish
+source (dirname (status filename))/../functions/_pure_prompt_k8s.fish
+source (dirname (status filename))/../functions/_pure_k8s_context.fish
+source (dirname (status filename))/../functions/_pure_k8s_namespace.fish
+source (dirname (status filename))/../functions/_pure_check_availability.fish
+@echo (_print_filename (status filename))
+
+function before_each
+ _purge_configs
+ _disable_colors
+end
+
+function teardown
+ _clean_all_mocks
+end
+
+
+@test "_pure_prompt_k8s: ensure default behaviour has no error" (
+ _pure_prompt_k8s
+) $status -eq $SUCCESS
+
+
+@test "_pure_prompt_k8s: ensure default behaviour print nothing" (
+ echo (_pure_prompt_k8s)
+) = $EMPTY
+
+
+before_each
+@test "_pure_prompt_k8s: print kubernetes context and namespace" (
+ set --universal pure_enable_k8s true
+ set --universal pure_symbol_k8s_prefix "☸"
+ _mock kubectl
+
+ _pure_prompt_k8s
+) = '☸ my-context/my-namespace'
+
+teardown

tests/mocks/kubectl.mock.fish

@@ -0,0 +1,17 @@
+function kubectl \
+ --description 'kubectl mock for test' \
+ --argument-names \
+ topcommand \
+ subcommand
+
+ if test $topcommand = config
+ if test $subcommand = current-context
+ echo my-context
+ end
+ if test $subcommand = view
+ echo my-namespace
+ end
+ else
+ echo "unknown command"
+ end
+end # mock

tests/mocks/mocks.fish

@@ -0,0 +1,31 @@
+function _mock \
+ --description "Invoke a mock function" \
+ --argument-names \
+ function_name
+
+ set mock_filepath (dirname (status filename))/$function_name.mock.fish
+ if test -e $mock_filepath
+ source (dirname (status filename))/$function_name.mock.fish
+ set --global --append __mocks $function_name
+ end
+end
+
+
+function _clean_mock \
+ --description "Clean a mock function" \
+ --argument-names \
+ function_name
+
+ functions --erase $function_name
+end
+
+function _clean_all_mocks \
+ --description "Clean all mock function"
+ set --local new_mocks
+ for mock in $__mocks
+ if functions --query $mock
+ functions --erase $mock
+ end
+ end
+ set --global __mocks
+end