expect.md
In selenider: Concise, Lazy and Reliable Wrapper for 'chromote' and 'selenium'

elem_expect() works

Code
  elem_expect(is_present, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_present`
  i The condition returned a function instead of TRUE.
  i Did you forget to supply `x`?
  x Instead of `elem_expect(is_present)`
  v Use: `elem_expect(element, is_present)`

Code
  elem_expect(s(".toggleable"))
Condition
  Error in `eval_conditions()`:
  ! No conditions were specified.
  i Try specifying a condition.
  x Instead of: `elem_expect(element)`
  v Try: `elem_expect(element, is_present)`

Code
  elem_expect(s(".random-class"), is_present, testthat = FALSE, timeout = 0)
Condition
  Error in `elem_expect()`:
  ! Condition failed:
  `is_present`
  i `x` is not present.

Code
  elem_expect(s(".random-class"), is_present, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_present`
  i `x` is not present.

Code
  elem_expect(s(".toggleable"), !is_in_dom, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `!is_in_dom`
  i `x` is in the DOM.

Code
  elem_expect(s(".random-class"), !is_absent, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `!is_absent`
  i `x` is absent.

Code
  elem_expect(s(".toggleable"), !(!(is_absent)), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `!(!(is_absent))`
  i `x` is in the DOM.

Code
  elem_expect(s(".random-class"), !(!(!(is_absent))), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `!(!(!(is_absent)))`
  i `x` is absent.

Code
  elem_expect(s(".random-class"), is_visible, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_visible`
  i `x` is not visible.
  Caused by error in `is_visible()`:
  ! `x` does not exist in the DOM.

Code
  elem_expect(s(".toggleable"), is_visible, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_visible`
  i `x` is not visible.

Code
  elem_expect(s(".buttons"), is_hidden, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_hidden`
  i `x` is displayed.

Code
  elem_expect(enabled_button, is_disabled, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_disabled`
  i `x` is enabled.

Code
  elem_expect(disabled_button, is_enabled, testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `is_enabled`
  i `x` is not enabled.

Code
  elem_expect(s(".random-class"), has_name("p"), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_name("p")`
  i `x` does not have tag name "p".
  Caused by error in `has_name()`:
  ! `x` does not exist in the DOM.

Code
  elem_expect(s(".toggleable"), has_name("biv"), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_name("biv")`
  i `x` does not have tag name "biv".
  i Actual tag name: "div".

Code
  elem_expect(element, has_text("Goodbye!"), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_text("Goodbye!")`
  i `x` does not have text "Goodbye!".
  i Actual text: "Hello!".

Code
  elem_expect(element, has_exact_text("ell"), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_exact_text("ell")`
  i `x` does not have exact text "ell".
  i Actual text: "Hello!".

Code
  elem_expect(buttons[[1]], has_attr("disabled", ""), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_attr("disabled", "")`
  i `x`'s "disabled" attribute is not "".
  i Actual value: `NULL`.

Code
  elem_expect(s(".toggleable"), attr_contains("style", "color"), testthat = FALSE,
  timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `attr_contains("style", "color")`
  i `x`'s "style" attribute does not contain "color".
  i Actual value: "display: none;".

Code
  elem_expect(submit_button, has_value("Don't submit"), testthat = FALSE,
  timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_value("Don't submit")`
  i `x` does not have value "Don't submit".
  i Actual value: "Submit".

Code
  elem_expect(s(".toggleable"), has_css_property("display", "block"), testthat = FALSE,
  timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_css_property("display", "block")`
  i `x`'s "display" CSS property is not "block".
  i Actual value: "none".

Code
  elem_expect(s(".random-class"), function(x) elem_name(x) == "biv", testthat = FALSE,
  timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `function(x) elem_name(x) == "biv"`
  i `x` does not exist, which may have caused the condition to fail.
  Caused by error in `elem_name()`:
  ! To get the tag name of `x`, it must exist.
  i `x` was not present.

Code
  elem_expect(s(".toggleable"), function(x) elem_name(x) == "biv", testthat = FALSE,
  timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `function(x) elem_name(x) == "biv"`
  i `x` exists, but the condition still failed.

Code
  elem_expect(elem_children(s(".random-class")), function(x) elem_name(x[[1]]) ==
    "biv", testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `function(x) elem_name(x[[1]]) == "biv"`
  i `x`'s parent element does not exist, which may have caused the condition to fail.
  Caused by error in `elem_name()`:
  ! To get the tag name of `x`, it must exist.
  i `x` was not present.

Code
  elem_expect(ss(".random-class"), function(x) elem_name(x[[1]]) == "biv",
  testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `function(x) elem_name(x[[1]]) == "biv"`
  i `x` contains no elements, which may have caused the condition to fail.
  Caused by error in `elem_name()`:
  ! To get the tag name of `x`, it must exist.
  i `x` was not present.

Code
  elem_expect(ss(".toggleable"), function(x) elem_name(x[[1]]) == "biv",
  testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `function(x) elem_name(x[[1]]) == "biv"`
  i `x` contains 1 element, but the condition still failed.

Code
  elem_expect(ss(".random-class"), has_at_least(1), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_at_least(1)`
  i `x` contains less than 1 element.
  i Actual number of elements: 0.

Code
  elem_expect(ss(".toggleable"), has_length(2), testthat = FALSE, timeout = 0.1)
Condition
  Error in `elem_expect()`:
  ! Condition failed after waiting for 0.1 seconds:
  `has_length(2)`
  i `x` does not contain 2 elements.
  i Actual number of elements: 1.

elem_expect() test failures work

Code
  show_failure(elem_expect(s(".random-class"), is_present, timeout = 0.1))
Output
  Failed expectation:
  Condition failed after waiting for 0.1 seconds:
  `is_present`
  i `x` is not present.

  Where `x` is:
  A selenider element selecting:
  The first element with css selector ".random-class".

Code
  show_failure(elem_expect(s(".random-class"), is_visible, timeout = 0.1))
Output
  Failed expectation:
  Condition failed after waiting for 0.1 seconds:
  `is_visible`
  i `x` is not visible.
  Caused by error in `is_visible()`:
  ! `x` does not exist in the DOM.

  Where `x` is:
  A selenider element selecting:
  The first element with css selector ".random-class".