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describe('hx-push-url attribute', function() {
var HTMX_HISTORY_CACHE_NAME = 'htmx-history-cache'
beforeEach(function() {
this.server = makeServer()
clearWorkArea()
localStorage.removeItem(HTMX_HISTORY_CACHE_NAME)
})
afterEach(function() {
this.server.restore()
clearWorkArea()
localStorage.removeItem(HTMX_HISTORY_CACHE_NAME)
})
it('navigation should push an element into the cache when true', function() {
this.server.respondWith('GET', '/test', 'second')
getWorkArea().innerHTML.should.be.equal('')
var div = make('<div hx-push-url="true" hx-get="/test">first</div>')
div.click()
this.server.respond()
div.click()
this.server.respond()
getWorkArea().textContent.should.equal('second')
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache[cache.length - 1].url.should.equal('/test')
})
it('navigation should push an element into the cache when string', function() {
this.server.respondWith('GET', '/test', 'second')
getWorkArea().innerHTML.should.be.equal('')
var div = make('<div hx-push-url="/abc123" hx-get="/test">first</div>')
div.click()
this.server.respond()
div.click()
this.server.respond()
getWorkArea().textContent.should.equal('second')
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(2)
cache[1].url.should.equal('/abc123')
})
it('restore should return old value', function() {
this.server.respondWith('GET', '/test1', '<div id="d2" hx-push-url="true" hx-get="/test2" hx-swap="outerHTML settle:0">test1</div>')
this.server.respondWith('GET', '/test2', '<div id="d3" hx-push-url="true" hx-get="/test3" hx-swap="outerHTML settle:0">test2</div>')
make('<div id="d1" hx-push-url="true" hx-get="/test1" hx-swap="outerHTML settle:0">init</div>')
byId('d1').click()
this.server.respond()
var workArea = getWorkArea()
workArea.textContent.should.equal('test1')
byId('d2').click()
this.server.respond()
workArea.textContent.should.equal('test2')
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(2)
htmx._('restoreHistory')('/test1')
getWorkArea().textContent.should.equal('test1')
})
it('history restore should not have htmx support classes in content', function() {
this.server.respondWith('GET', '/test1', '<div id="d2" hx-push-url="true" hx-get="/test2" hx-swap="outerHTML settle:0">test1</div>')
this.server.respondWith('GET', '/test2', '<div id="d3" hx-push-url="true" hx-get="/test3" hx-swap="outerHTML settle:0">test2</div>')
make('<div id="d1" hx-push-url="true" hx-get="/test1" hx-swap="outerHTML settle:0">init</div>')
byId('d1').click()
this.server.respond()
var workArea = getWorkArea()
workArea.textContent.should.equal('test1')
byId('d2').click()
this.server.respond()
workArea.textContent.should.equal('test2')
htmx._('restoreHistory')('/test1')
getWorkArea().getElementsByClassName('htmx-request').length.should.equal(0)
})
it('cache should only store 10 entries', function() {
var x = 0
this.server.respondWith('GET', /test.*/, function(xhr) {
x++
xhr.respond(200, {}, '<div id="d1" hx-push-url="true" hx-get="/test' + x + '" hx-swap="outerHTML settle:0"></div>')
})
getWorkArea().innerHTML.should.be.equal('')
make('<div id="d1" hx-push-url="true" hx-get="/test" hx-swap="outerHTML settle:0"></div>')
for (var i = 0; i < 20; i++) { // issue 20 requests
byId('d1').click()
this.server.respond()
}
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(10) // should only be 10 elements
})
it('cache miss should issue another GET', function() {
this.server.respondWith('GET', '/test1', '<div id="d2" hx-push-url="true" hx-get="/test2" hx-swap="outerHTML settle:0">test1</div>')
this.server.respondWith('GET', '/test2', '<div id="d3" hx-push-url="true" hx-get="/test3" hx-swap="outerHTML settle:0">test2</div>')
make('<div id="d1" hx-push-url="true" hx-get="/test1" hx-swap="outerHTML settle:0">init</div>')
byId('d1').click()
this.server.respond()
var workArea = getWorkArea()
workArea.textContent.should.equal('test1')
byId('d2').click()
this.server.respond()
workArea.textContent.should.equal('test2')
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(2)
localStorage.removeItem(HTMX_HISTORY_CACHE_NAME) // clear cache
htmx._('restoreHistory')('/test1')
this.server.respond()
getWorkArea().textContent.should.equal('test1')
})
it('navigation should push an element into the cache w/ data-* prefix', function() {
this.server.respondWith('GET', '/test', 'second')
getWorkArea().innerHTML.should.be.equal('')
var div = make('<div data-hx-push-url="true" data-hx-get="/test">first</div>')
div.click()
this.server.respond()
getWorkArea().textContent.should.equal('second')
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(1)
})
it('deals with malformed JSON in history cache when getting', function() {
localStorage.setItem(HTMX_HISTORY_CACHE_NAME, 'Invalid JSON')
var history = htmx._('getCachedHistory')('url')
should.equal(history, null)
})
it('deals with malformed JSON in history cache when saving', function() {
localStorage.setItem(HTMX_HISTORY_CACHE_NAME, 'Invalid JSON')
htmx._('saveToHistoryCache')('url', make('<div>'))
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(1)
})
it('does not blow out cache when saving a URL twice', function() {
htmx._('saveToHistoryCache')('url1', make('<div>'))
htmx._('saveToHistoryCache')('url2', make('<div>'))
htmx._('saveToHistoryCache')('url3', make('<div>'))
htmx._('saveToHistoryCache')('url2', make('<div>'))
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(3)
})
it('history cache is LRU', function() {
htmx._('saveToHistoryCache')('url1', make('<div>'))
htmx._('saveToHistoryCache')('url2', make('<div>'))
htmx._('saveToHistoryCache')('url3', make('<div>'))
htmx._('saveToHistoryCache')('url2', make('<div>'))
htmx._('saveToHistoryCache')('url1', make('<div>'))
var cache = JSON.parse(localStorage.getItem(HTMX_HISTORY_CACHE_NAME))
cache.length.should.equal(3)
cache[0].url.should.equal('url3')
cache[1].url.should.equal('url2')
cache[2].url.should.equal('url1')
})
it('htmx:afterSettle is called when replacing outerHTML', function() {
var called = false
var handler = htmx.on('htmx:afterSettle', function(evt) {
called = true
})
try {
this.server.respondWith('POST', '/test', function(xhr) {
xhr.respond(200, {}, '<button>Bar</button>')
})
var div = make("<button hx-post='/test' hx-swap='outerHTML'>Foo</button>")
div.click()
this.server.respond()
should.equal(called, true)
} finally {
htmx.off('htmx:afterSettle', handler)
}
})
it('should include parameters on a get', function() {
var path = ''
var handler = htmx.on('htmx:pushedIntoHistory', function(evt) {
path = evt.detail.path
})
try {
this.server.respondWith('GET', /test.*/, function(xhr) {
xhr.respond(200, {}, 'second')
})
var form = make('<form hx-trigger="click" hx-push-url="true" hx-get="/test"><input type="hidden" name="foo" value="bar"/>first</form>')
form.click()
this.server.respond()
form.textContent.should.equal('second')
path.should.equal('/test?foo=bar')
} finally {
htmx.off('htmx:pushedIntoHistory', handler)
}
})
it('saveToHistoryCache should not throw', function() {
var bigContent = 'Dummy'
for (var i = 0; i < 20; i++) {
bigContent += bigContent
}
try {
localStorage.removeItem('htmx-history-cache')
htmx._('saveToHistoryCache')('/dummy', make('<div>' + bigContent + '</div>'), 'Foo', 0)
should.equal(localStorage.getItem('htmx-history-cache'), null)
} finally {
// clear history cache afterwards
localStorage.removeItem('htmx-history-cache')
}
})
})
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