Skip to contents

Make all HTTP requests raise an error

Source: R/without-internet.R
without_internet.Rd

without_internet simulates the situation when any network request will fail, as in when you are without an internet connection. Any HTTP request through the verb functions in httr will raise an error.

Usage

without_internet(expr)

Arguments

expr

Code to run inside the mock context

Value

The result of expr

Details

The error message raised has a well-defined shape, made of three elements, separated by space: (1) the request method (e.g. "GET"); (2) the request URL; and (3) the request body, if present. The verb-expectation functions, such as expect_GET() and expect_POST(), look for this shape.

See also

block_requests() to enable mocking on its own (not in a context)

Examples

without_internet({
  expect_error(
    httr::GET("http://httpbin.org/get"),
    "GET http://httpbin.org/get"
  )
  expect_error(httr::PUT("http://httpbin.org/put",
    body = '{"a":1}'
  ),
  'PUT http://httpbin.org/put {"a":1}',
  fixed = TRUE
  )
})
#> <simpleError: PUT http://httpbin.org/put {"a":1}>