Enzyme.Wrapper

class Wrapper w  where

The Wrapper type class represents any Enzyme wrapper of React components with an interface to manipulate or traverse them.

Members

• at :: Int -> w -> Effect w

  Returns a wrapper around the node at a given index of the current wrapper.

• children :: w -> Effect w

  Returns a new wrapper with all of the children of the node(s) in the current wrapper.

• debug :: { ignoreProps :: Boolean, verbose :: Boolean } -> w -> Effect String

  Returns an HTML-like string of the wrapper for debugging purposes. Useful to print out to the console when tests are not passing when you expect them to.

• findWhere :: (w -> Effect Boolean) -> w -> Effect w

  Finds every node in the render tree that returns true for the provided predicate function.

• forEach :: (w -> Int -> Effect Unit) -> w -> Effect Unit

  Maps the current array of nodes to another array. Each node is passed in as a wrapper to the map function.

• get :: Int -> w -> Effect ReactElement

  Returns the node at a given index of the current wrapper.

• hostNodes :: w -> Effect w

  Returns a new wrapper with only host nodes. When using React-dom, host nodes are HTML elements rather than custom React components, e.g. <div> versus <MyComponent>.

• invoke :: String -> w -> Array Foreign -> Effect Unit

  Invokes a property as a function with an Array of arguments.

• is :: String -> w -> Effect Boolean

  Returns whether or not the single wrapped node matches the provided selector. It must be a single-node wrapper.

• length :: w -> Effect Int

  Returns the number of nodes inside the current wrapper.

• matches :: ReactElement -> w -> Effect Boolean

  Returns whether or not a patternNode React element matches any element in the render tree. It must be a single-node wrapper, and only the root node is checked.

• name :: w -> Effect String

  Returns the name of the current node of this wrapper. If it's a composite component, this will be the name of the component. If it's a native DOM it will be a string of the tag name.

• parents :: w -> Effect w

  Returns a wrapper around all of the parents/ancestors of the single node in the wrapper. Does not include the node itself.

• property :: String -> w -> Effect Foreign

  Returns the prop value for the root node of the wrapper with the provided key. It must be a single-node wrapper.

• reduce :: forall a. (a -> w -> Int -> Effect a) -> a -> w -> Effect a

  Applies the provided reducing function to every node in the wrapper to reduce to a single value. Each node is passed in as a wrapper, and is processed from left to right.

• setProperty :: String -> Foreign -> w -> Aff Unit

  A method that sets the property of the root component, and re-renders. Useful for when you are wanting to test how the component behaves over time with changing props. Blocks until the operation completes.

• slice :: Int -> Int -> w -> Effect w

  Returns a new wrapper with a subset of the nodes of the original wrapper, according to the rules of Array#slice.

• text :: w -> Effect String

  Returns a string of the rendered text of the current render tree.

• unmount :: w -> Effect Unit

  A method that unmounts the component. This can be used to simulate a component going through an unmount/mount lifecycle.

childAt :: forall w. Wrapper w => Int -> w -> Effect w

Returns a new wrapper with child at the specified index.

enumerate :: forall w. Wrapper w => w -> Effect w

Enumerates all the nodes in the current wrapper and their children.

every :: forall w. Wrapper w => String -> w -> Effect Boolean

Returns whether or not all of the nodes in the wrapper match the provided selector.

everyWhere :: forall w. Wrapper w => (w -> Effect Boolean) -> w -> Effect Boolean

Returns whether or not all of the nodes in the wrapper pass the provided predicate function.

find :: forall w. Wrapper w => String -> w -> Effect w

Finds every node in the render tree of the current wrapper that matches the provided selector.

first :: forall w. Wrapper w => w -> Effect w

Reduce the set of matched nodes to the first in the set, just like at 0.

isEmpty :: forall w. Wrapper w => w -> Effect Boolean

Returns whether or not the wrapper is empty.

last :: forall w. Wrapper w => w -> Effect w

Reduce the set of matched nodes to the last in the set.

parent :: forall w. Wrapper w => w -> Effect w

Returns a wrapper with the direct parent of the node in the current wrapper.

skip :: forall w. Wrapper w => Int -> w -> Effect w

Returns a new wrapper with a subset of the nodes of the original wrapper after skipping the first n nodes.

some :: forall w. Wrapper w => String -> w -> Effect Boolean

Returns whether or not any of the nodes in the wrapper match the provided selector.

someWhere :: forall w. Wrapper w => (w -> Effect Boolean) -> w -> Effect Boolean

Returns whether or not any of the nodes in the wrapper pass the provided predicate function.