mirror of
https://github.com/datashard/snapshot.git
synced 2024-11-23 06:22:28 +00:00
finish most writings
This commit is contained in:
Joshua
parent
71fe145047
commit
e4f9cbc5cf
3 changed files with 35 additions and 25 deletions
|
|
@ -2,3 +2,4 @@ cypress/
|
|||
cypress.config.js
|
||||
.github/workflows/
|
||||
.vscode/
|
||||
renovate.json
|
||||
2
LICENSE
2
LICENSE
|
|
@ -1,4 +1,4 @@
|
|||
Copyright (c) 2023-2024 Joshua <data@shard.wtf>
|
||||
Copyright (c) 2023-2024 Joshua data@shard.wtf
|
||||
|
||||
Permission is hereby granted, free of charge, to any person
|
||||
obtaining a copy of this software and associated documentation
|
||||
|
|
|
|||
55
README.md
55
README.md
|
|
@ -1,14 +1,19 @@
|
|||
# @datashard/snapshot
|
||||
|
||||
> Adds support for Value, Object, and Dom Element Snapshot Testing to Cypress
|
||||
> Adds JSON Snapshot comparison to Cypress
|
||||
|
||||
## Breaking Changes
|
||||
> [!WARNING]
|
||||
The `readFileMaybe` task was required in previous Versions, this has been changed so this Module now uses the `cy.fixture` Command to get the contents of existing files. This means that this module will only be able to write new tests if `updateSnapshots` (previously `SNAPSHOT_UPDATE`) is set to true through Environment Variables or through the Cypress config.
|
||||
\
|
||||
This also means, that previous tests will likely be broken, *please make sure that your tests pass before updating to the latest version of this module*
|
||||
## ⚠️ Breaking Changes ⚠️
|
||||
|
||||
- With V3, the `readFileMaybe` task has been removed, we now rely on `cy.fixture` internally.
|
||||
- the previous `SNAPSHOT_UPDATE` Environment/Config Variable has been changed to `updateSnapshots`
|
||||
|
||||
> [!DANGER]
|
||||
This means that previous tests will likely be broken, *please make sure that your tests pass before updating to the latest version of this Plugin*.
|
||||
|
||||
This current release will be released as `3.0.0-beta`, should Bugs be found by me or my Employer, I will open Issues/PRs to fix those, should anyone else find Bugs/Edgecases, etc. please open an Issue.
|
||||
|
||||
## Install
|
||||
|
||||
Requires Node 16 or above
|
||||
|
||||
```sh
|
||||
|
|
@ -16,20 +21,22 @@ npm i --save-dev @datashard/snapshot
|
|||
```
|
||||
|
||||
## Import
|
||||
|
||||
After Installing, you'll need to add the following import into your Commands/Support File
|
||||
|
||||
> by default this will be `cypress/support/e2e.js`
|
||||
|
||||
```js
|
||||
require('@datashard/snapshot').regsiter()
|
||||
```
|
||||
|
||||
This will register a new Command `.snapshot()`, to create new Snapshots and once created, to compare their Values.
|
||||
This will register a new Command `.snapshot()`, to create and compare JSON Snapshots.
|
||||
|
||||
## Config
|
||||
|
||||
You can pass `updateSnapshots` and `useFolders` as options in the `cypress.config.js` file
|
||||
|
||||
|
||||
|
||||
Alternatively, you can also add `snapshotUpdate` as an Environment Variable to update your snapshots.
|
||||
|
||||
Simply pass `--env updateSnapshots=true` when running Cypress.
|
||||
|
|
@ -38,9 +45,12 @@ Simply pass `--env updateSnapshots=true` when running Cypress.
|
|||
|
||||
If properly added, usage of this plugin is rather simple, just add `.snapshot()` to cypress functions that return valid JSON. (i.e. `cy.wrap`)
|
||||
|
||||
When properly added, you can chain `.snapshot()` off of `cy` functions like `cy.wrap`, just make sure they return valid JSON.
|
||||
|
||||
### Example
|
||||
|
||||
```js
|
||||
describe("my tests", () => {
|
||||
describe("my test", () => {
|
||||
it("works", () => {
|
||||
cy.log("first snapshot");
|
||||
cy.wrap({ foo: 42 }).snapshot("foo");
|
||||
|
|
@ -50,31 +60,30 @@ describe("my tests", () => {
|
|||
});
|
||||
```
|
||||
|
||||
Depending on your settings, this module will then save your snapshots as
|
||||
This Plugin will then save your snapshots as
|
||||
|
||||
```ts
|
||||
// useFolders: false
|
||||
cypress/fixtures/snapshots/my-tests__works__foo.json
|
||||
cypress/fixtures/snapshots/my-tests__works__bar.json
|
||||
cypress/fixtures/my-test__works__foo.json
|
||||
cypress/fixtures/my-test__works__bar.json
|
||||
|
||||
// useFolders: true
|
||||
cypress/fixtures/snapshots/my-tests/works/foo.json
|
||||
cypress/fixtures/snapshots/my-tests/works/bar.json
|
||||
cypress/fixtures/my-test/works/foo.json
|
||||
cypress/fixtures/my-test/works/bar.json
|
||||
|
||||
// {fixtureFolder}/<Context>-<Describe>-<It>-<Name?>.json
|
||||
// {fixtureFolder}/<Context>/<Describe>/<It>/<Name?>.json
|
||||
|
||||
```
|
||||
|
||||
Snapshots will generally be saved using this convention, provided by the Cypress Test Steps:
|
||||
Snapshots will generally be saved using this the Convention mentioned in the Comment of the above Codeblock, which is provided by the named Cypress Test Steps.
|
||||
|
||||
Passing a name to the Snapshot function is required, but not checked, if you want to take multiple snapshots in the same block.
|
||||
|
||||
If you have two Snapshots in the same Block, the last one ***WILL*** overwrite the previous one while updating and the then updated Test will fail on the first snapshot.
|
||||
```
|
||||
{fixtureFolder}/<Context>-<Describe>-<It>-<Name?>.json
|
||||
{fixtureFolder}/<Context>/<Describe>/<It>/<Name?>.json
|
||||
```
|
||||
|
||||
|
||||
If you have two or more Snapshots in the same Block, the next one ***WILL*** always overwrite the previous one while updating, causing the First Snapshot in the Block to Fail.
|
||||
While running your Tests, if a value changed, it will, of course, no longer match the snapshot and throw an Error.
|
||||
|
||||
Which looks like this:
|
||||
Which will look like this:
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue