tests: added tests for swappable envs

Author: dan-wearearch

tests/swappable_env/.env

@@ -0,0 +1,2 @@
+TITLE=Title from .env
+BODY=Body from .env

tests/swappable_env/.env.json

@@ -0,0 +1,4 @@
+{
+  "TITLE": "Json TITLE",
+  "BODY": "This Body is from the json env"
+}

tests/swappable_env/swappable_env.http

@@ -0,0 +1,10 @@
+# Use command :RestSelectEnv ./tests/swappable_env/.env.json
+# to select the env file for this request
+POST https://jsonplaceholder.typicode.com/posts
+Content-type: application/json
+
+{
+    "title": "{{TITLE}}",
+    "body": "{{BODY}}",
+    "userId": 1
+}