stub_body_diff: Get a diff of a stub request body and a request body from an...

In webmockr: Stubbing and Setting Expectations on 'HTTP' Requests

Get a diff of a stub request body and a request body from an http request

Description

Requires the Suggested package diffobj

Usage

stub_body_diff(stub = last_stub(), request = last_request())

Arguments

stub	object of class StubbedRequest. required. default is to call last_stub(), which gets the last stub created
request	object of class RequestSignature. required. default is to call last_request(), which gets the last stub created

Details

Returns error message if either stub or request are NULL. Even though you may not intentionally pass in a NULL, the return values of last_stub() and last_request() when there's nothing found is NULL.

Under the hood the Suggested package diffobj is used to do the comparison.

Value

object of class Diff from the diffobj package

See Also

webmockr_configure() to toggle webmockr showing request body diffs when there's not a match. stub_body_diff() is offered as a manual way to compare requests and stubs - whereas turning on with webmockr_configure() will do the diff for you.

Examples

# stops with error if no stub and request
request_registry_clear()
stub_registry_clear()
stub_body_diff()

# Gives diff when there's a stub and request found - however, no request body
stub_request("get", "https://hb.opencpu.org/get")
enable()
library(crul)
HttpClient$new("https://hb.opencpu.org")$get(path = "get")
stub_body_diff()

# Gives diff when there's a stub and request found - with request body
stub_request("post", "https://hb.opencpu.org/post") %>%
  wi_th(body = list(apple = "green"))
enable()
library(crul)
HttpClient$new("https://hb.opencpu.org")$post(
  path = "post", body = list(apple = "red")
)
stub_body_diff()

# Gives diff when there's a stub and request found - with request body
stub_request("post", "https://hb.opencpu.org/post") %>%
  wi_th(body = "the quick brown fox")
HttpClient$new("https://hb.opencpu.org")$post(
  path = "post", body = "the quick black fox"
)
stub_body_diff()

webmockr documentation built on June 29, 2025, 9:06 a.m.