v5.0.0

=====================================================================

Excited to bring V5 to life. This includes some BREAKING CHANGES to
several aspects of ZSH-type scwrypts. Please refer to the readme
for upgrade details (specifically docs/upgrade/v4-to-v5.md)

--- New Features -------------------------

- ZSH testing library with basic mock capabilities

- new scwrypts environment file format includes metadata and more
  advanced features like optional parent env overrides, selection
  inheritence, and improved structurual flexibility

- speedup cache for non-CI runs of ZSH-type scwrypts

- ${scwryptsmodule} syntax now allows a consistent unique-naming
  scheme for functions in ZSH-type scwrypts while providing better
  insight into origin of API calls in other modules

- reusable, case-statement-driven argument parsers in ZSH-type scwrypts

--- Changes ------------------------------

- several utility function renames in ZSH-type scwrypts to improve
  consistency

- documentation comments included in ZSH libraries

- ZSH-type scwrypts now allow library modules to live alongside
  executables
  (zsh/lib still supported; autodetection determines default)

--- Bug Fixes ----------------------------

- hardened environment checking for REQUIRED_ENV variables; this removes
  the ability to overwrite variables in local function contexts

zsh/cloud/aws/cli.test.zsh

@@ -0,0 +1,65 @@
+#####################################################################
+
+use unittest
+testmodule=cloud.aws.cli
+
+#####################################################################
+
+beforeall() {
+	use cloud/aws/cli
+}
+
+beforeeach() {
+	unittest.mock aws
+	unittest.mock echo.debug
+
+	_ARGS=($(uuidgen) $(uuidgen) $(uuidgen))
+
+	_AWS_REGION=$(uuidgen)
+	_AWS_PROFILE=$(uuidgen)
+
+	unittest.mock.env AWS_ACCOUNT --value $(uuidgen)
+	unittest.mock.env AWS_PROFILE --value ${_AWS_PROFILE}
+	unittest.mock.env AWS_REGION  --value ${_AWS_REGION}
+}
+
+aftereach() {
+	unset _AWS_REGION
+	unset _AWS_PROFILE
+}
+
+#####################################################################
+
+test.forwards-arguments() {
+	${testmodule} ${_ARGS[@]}
+
+	aws.assert.callstack \
+		--output json \
+		--region ${_AWS_REGION} \
+		--profile ${_AWS_PROFILE} \
+		${_ARGS[@]} \
+		;
+}
+
+test.overrides-region() {
+	local OVERRIDE_REGION=$(uuidgen)
+
+	${testmodule} --region ${OVERRIDE_REGION} ${_ARGS[@]}
+
+	aws.assert.callstack \
+		--output json \
+		--region ${OVERRIDE_REGION} \
+		--profile ${_AWS_PROFILE} \
+		${_ARGS[@]} \
+		;
+}
+
+test.overrides-account() {
+	local OVERRIDE_ACCOUNT=$(uuidgen)
+
+	${testmodule} --account ${OVERRIDE_ACCOUNT} ${_ARGS[@]}
+
+	echo.debug.assert.callstackincludes \
+		AWS_ACCOUNT=${OVERRIDE_ACCOUNT} \
+		;
+}