Refactor aws tests' fake meta-data

Refactor fake wget to use a yaml so we can set aws fake meta-data
similar to how we set nocloud fake meta-data.

Also move fake netcat to tests/bin/nc so its always there and we don't
need to remember to call fake_netcat when needed.

tests/bin/nc

@@ -0,0 +1,6 @@
+#!/bin/sh
+input="$(cat)"
+case "$input" in
+	-*) echo "nc: bad input: \$input" >&2; exit 1;;
+esac
+echo "token-foo"

tests/bin/wget

@@ -78,8 +78,17 @@ for url; do
 	esac
 done
 
+host="${url#http*://}"
+host="${host%%/*}"
+path="${url#http*://$host}"
+path="${path#${WGET_STRIP_PREFIX:-/}}"
+
 if [ -z "$WGETCONTENT" ]; then
-	WGETCONTENT=$( cat "$(echo ${url#http*://} | tr '/' '_')" 2>/dev/null)
+	(
+	IFS=/
+	set -- ${path#/}
+	yx -f "${WGET_YAML:-$host.yaml}" "$@" 2>/dev/null
+	)
 fi
 
 : "${outfile:=index.html}"

tests/fake-wget.test

@@ -14,7 +14,8 @@ init_tests \
 	fake_wget_missing_url \
 	fake_wget_empty_url \
 	fake_wget_header \
-	fake_wget_content_from_path
+	fake_wget_content_from_path \
+	fake_wget_content_from_path_strip_prefix
 
 fake_wget_usage_body() {
 	atf_check -s exit:0 \
@@ -70,7 +71,9 @@ fake_wget_stdout_body() {
 		-o match:"hello world" \
 		-e match:"writing to stdout" \
 		wget -O - https://example.com
-		! test -f - || atf_fail "- was created"
+	if [ -f - ]; then
+		atf_fail "- was created"
+	fi
 }
 
 fake_wget_fail_body() {
@@ -104,9 +107,22 @@ fake_wget_header_body() {
 }
 
 fake_wget_content_from_path_body() {
-	mkdir -p example.com/foo
+	cat > example.com.yaml <<-EOF
-	echo value > example.com_foo_key
+		foo:
+		  key: value
+	EOF
 	atf_check -s exit:0 \
 		-o match:"^value$" \
 		wget --quiet -O - https://example.com/foo/key
 }
+
+fake_wget_content_from_path_strip_prefix_body() {
+	cat > 169.254.169.254.yaml <<-EOF
+		foo:
+		  key: value
+	EOF
+	export WGET_STRIP_PREFIX="/latest/meta-data"
+	atf_check -s exit:0 \
+		-o match:"^value$" \
+		wget --quiet -O - https://169.254.169.254/latest/meta-data/foo/key
+}

tests/imds.test

@@ -25,29 +25,27 @@ imds_space_body() {
 	CLOUD=nocloud atf_check -o match:'^$' imds +n
 }
 
-aws_set_fake_meta() {
-	local key="$1" value="$2"
-	echo "$value" > $(echo 169.254.169.254/latest/meta-data/"$key" \
-		| tr '/' '_')
-}
-
 imds_aws_hostname_body() {
-	fake_netcat
+	fake_metadata_aws <<-EOF
-	aws_set_fake_meta hostname myhostname
+		hostname: myhostname
+	EOF
 	CLOUD=aws atf_check -o match:"myhostname" imds @hostname
 }
 
 imds_aws_local_hostname_body() {
-	fake_netcat
+	fake_metadata_aws <<-EOF
-	aws_set_fake_meta local-hostname myhostname
+		local-hostname: myhostname
+	EOF
 	CLOUD=aws atf_check -o match:"myhostname" imds @local-hostname
 }
 
 imds_aws_ssh_keys_body() {
-	fake_netcat
+	fake_metadata_aws <<-EOF
-	aws_set_fake_meta public-keys 0=testuser
+		public-keys:
-	aws_set_fake_meta public-keys/0/openssh-key "ssh-ed25519 keydata"
+		  0=testuser:
-
+		  0:
+		    openssh-key: ssh-ed25519 keydata
+	EOF
 	CLOUD=aws atf_check -o match:"ssh-ed25519 keydata" imds @ssh-keys
 }
 

tests/test_env.sh

@@ -63,6 +63,11 @@ fake_userdata_nocloud() {
 	fake_data_nocloud user-data
 }
 
+fake_metadata_aws() {
+	cat > "169.254.169.254.yaml"
+	export WGET_STRIP_PREFIX="/latest/meta-data"
+}
+
 fake_interfaces() {
 	local n=1
 	for i; do
@@ -72,14 +77,3 @@ fake_interfaces() {
 		n=$((n+1))
 	done
 }
-
-fake_netcat() {
-	fake_bin nc <<-EOF
-		#!/bin/sh
-		input="\$(cat)"
-		case "\$input" in
-			-*) echo "nc: bad input: \$input" >&2; exit 1;;
-		esac
-		echo "token-foo"
-	EOF
-}

tests/tiny-cloud.test

@@ -27,7 +27,6 @@ tiny_cloud_help_body() {
 }
 
 no_metadata_early_body() {
-	fake_netcat
 	for provider in $PROVIDERS; do
 		CLOUD="$provider" atf_check \
 			-e not-match:"unknown" \
@@ -39,7 +38,6 @@ no_metadata_early_body() {
 }
 
 no_userdata_net_body() {
-	fake_netcat
 	for provider in $PROVIDERS; do
 		CLOUD="$provider" atf_check \
 			-e not-match:"unknown" \
@@ -49,7 +47,6 @@ no_userdata_net_body() {
 }
 
 no_userdata_main_body() {
-	fake_netcat
 	for provider in $PROVIDERS; do
 		# we should not set empty hostname
 		# we should not create .ssh dir for non-existing user
@@ -68,7 +65,6 @@ no_userdata_main_body() {
 }
 
 no_userdata_final_body() {
-	fake_netcat
 	for provider in $PROVIDERS; do
 		CLOUD="$provider" atf_check \
 			-e not-match:"unknown" \