Polymer + Custom Elements

Version: 3.5.2

Browser: Chrome Headless 138.0.0.0 (Linux x86_64)

Timestamp: 8/10/2025, 5:05:53 PM

16 tests / 0 errors / 3 failures / 0 skipped / runtime: 0.018s

AssertionError: expected 'false' to deeply equal 'true'
at Context.eval (webpack:///./src/advanced-tests.js?:101:76)

AssertionError: expected 'false' to deeply equal 'true'
at Context.eval (webpack:///./src/advanced-tests.js?:112:76)

AssertionError: expected 'false' to deeply equal 'true'
at Context.eval (webpack:///./src/advanced-tests.js?:123:76)

Version: 3.5.2

Browser: FirefoxHeadless

Timestamp: 8/10/2025, 5:06:09 PM

16 tests / 0 errors / 3 failures / 0 skipped / runtime: 0.098s

expected 'false' to deeply equal 'true'
@webpack:///./src/advanced-tests.js?:101:76

expected 'false' to deeply equal 'true'
@webpack:///./src/advanced-tests.js?:112:76

expected 'false' to deeply equal 'true'
@webpack:///./src/advanced-tests.js?:123:76

Polymer + Custom Elements

basic support

no children
can display a Custom Element with no children

Passed in 0.004s

with children
can display a Custom Element with children in a Shadow Root

Passed in 0.001s

with children
can display a Custom Element with children in a Shadow Root and pass in Light DOM children

Passed in 0.003s

with children
can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element

Passed in 0.005s

attributes and properties
will pass boolean data as either an attribute or a property

Passed in 0s

attributes and properties
will pass numeric data as either an attribute or a property

Passed in 0s

attributes and properties
will pass string data as either an attribute or a property

Passed in 0s

events
can imperatively listen to a DOM event dispatched by a Custom Element

Passed in 0.001s

advanced support

attributes and properties
will pass array data as a property

Passed in 0s

attributes and properties
will pass object data as a property

Passed in 0.001s

attributes and properties
will pass object data to a camelCase-named property

Passed in 0s

events
can declaratively listen to a lowercase DOM event dispatched by a Custom Element

Passed in 0.001s

events
can declaratively listen to a kebab-case DOM event dispatched by a Custom Element

Passed in 0s

events
can declaratively listen to a camelCase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a CAPScase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a PascalCase DOM event dispatched by a Custom Element

Failed

basic support

no children
can display a Custom Element with no children

Passed in 0.007s

with children
can display a Custom Element with children in a Shadow Root

Passed in 0.007s

with children
can display a Custom Element with children in a Shadow Root and pass in Light DOM children

Passed in 0.016s

with children
can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element

Passed in 0.012s

attributes and properties
will pass boolean data as either an attribute or a property

Passed in 0s

attributes and properties
will pass numeric data as either an attribute or a property

Passed in 0s

attributes and properties
will pass string data as either an attribute or a property

Passed in 0s

events
can imperatively listen to a DOM event dispatched by a Custom Element

Passed in 0.009s

advanced support

attributes and properties
will pass array data as a property

Passed in 0.001s

attributes and properties
will pass object data as a property

Passed in 0.001s

attributes and properties
will pass object data to a camelCase-named property

Passed in 0s

events
can declaratively listen to a lowercase DOM event dispatched by a Custom Element

Passed in 0.016s

events
can declaratively listen to a kebab-case DOM event dispatched by a Custom Element

Passed in 0s

events
can declaratively listen to a camelCase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a CAPScase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a PascalCase DOM event dispatched by a Custom Element

Failed

Polymer + Custom Elements

basic support

no children can display a Custom Element with no children Passed in 0.004s

with children can display a Custom Element with children in a Shadow Root Passed in 0.001s

with children can display a Custom Element with children in a Shadow Root and pass in Light DOM children Passed in 0.003s

with children can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element Passed in 0.005s

attributes and properties will pass boolean data as either an attribute or a property Passed in 0s

attributes and properties will pass numeric data as either an attribute or a property Passed in 0s

attributes and properties will pass string data as either an attribute or a property Passed in 0s

events can imperatively listen to a DOM event dispatched by a Custom Element Passed in 0.001s

advanced support

attributes and properties will pass array data as a property Passed in 0s

attributes and properties will pass object data as a property Passed in 0.001s

attributes and properties will pass object data to a camelCase-named property Passed in 0s

events can declaratively listen to a lowercase DOM event dispatched by a Custom Element Passed in 0.001s

events can declaratively listen to a kebab-case DOM event dispatched by a Custom Element Passed in 0s

events can declaratively listen to a camelCase DOM event dispatched by a Custom Element Failed

events can declaratively listen to a CAPScase DOM event dispatched by a Custom Element Failed

events can declaratively listen to a PascalCase DOM event dispatched by a Custom Element Failed

basic support

no children can display a Custom Element with no children Passed in 0.007s

with children can display a Custom Element with children in a Shadow Root Passed in 0.007s

with children can display a Custom Element with children in a Shadow Root and pass in Light DOM children Passed in 0.016s

with children can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element Passed in 0.012s

attributes and properties will pass boolean data as either an attribute or a property Passed in 0s

attributes and properties will pass numeric data as either an attribute or a property Passed in 0s

attributes and properties will pass string data as either an attribute or a property Passed in 0s

events can imperatively listen to a DOM event dispatched by a Custom Element Passed in 0.009s

advanced support

attributes and properties will pass array data as a property Passed in 0.001s

attributes and properties will pass object data as a property Passed in 0.001s

attributes and properties will pass object data to a camelCase-named property Passed in 0s

events can declaratively listen to a lowercase DOM event dispatched by a Custom Element Passed in 0.016s

events can declaratively listen to a kebab-case DOM event dispatched by a Custom Element Passed in 0s

events can declaratively listen to a camelCase DOM event dispatched by a Custom Element Failed

events can declaratively listen to a CAPScase DOM event dispatched by a Custom Element Failed

events can declaratively listen to a PascalCase DOM event dispatched by a Custom Element Failed

no children
can display a Custom Element with no children

Passed in 0.004s

with children
can display a Custom Element with children in a Shadow Root

Passed in 0.001s

with children
can display a Custom Element with children in a Shadow Root and pass in Light DOM children

Passed in 0.003s

with children
can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element

Passed in 0.005s

attributes and properties
will pass boolean data as either an attribute or a property

Passed in 0s

attributes and properties
will pass numeric data as either an attribute or a property

Passed in 0s

attributes and properties
will pass string data as either an attribute or a property

Passed in 0s

events
can imperatively listen to a DOM event dispatched by a Custom Element

Passed in 0.001s

attributes and properties
will pass array data as a property

Passed in 0s

attributes and properties
will pass object data as a property

Passed in 0.001s

attributes and properties
will pass object data to a camelCase-named property

Passed in 0s

events
can declaratively listen to a lowercase DOM event dispatched by a Custom Element

Passed in 0.001s

events
can declaratively listen to a kebab-case DOM event dispatched by a Custom Element

Passed in 0s

events
can declaratively listen to a camelCase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a CAPScase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a PascalCase DOM event dispatched by a Custom Element

Failed

no children
can display a Custom Element with no children

Passed in 0.007s

with children
can display a Custom Element with children in a Shadow Root

Passed in 0.007s

with children
can display a Custom Element with children in a Shadow Root and pass in Light DOM children

Passed in 0.016s

with children
can display a Custom Element with children in the Shadow DOM and handle hiding and showing the element

Passed in 0.012s

attributes and properties
will pass boolean data as either an attribute or a property

Passed in 0s

attributes and properties
will pass numeric data as either an attribute or a property

Passed in 0s

attributes and properties
will pass string data as either an attribute or a property

Passed in 0s

events
can imperatively listen to a DOM event dispatched by a Custom Element

Passed in 0.009s

attributes and properties
will pass array data as a property

Passed in 0.001s

attributes and properties
will pass object data as a property

Passed in 0.001s

attributes and properties
will pass object data to a camelCase-named property

Passed in 0s

events
can declaratively listen to a lowercase DOM event dispatched by a Custom Element

Passed in 0.016s

events
can declaratively listen to a kebab-case DOM event dispatched by a Custom Element

Passed in 0s

events
can declaratively listen to a camelCase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a CAPScase DOM event dispatched by a Custom Element

Failed

events
can declaratively listen to a PascalCase DOM event dispatched by a Custom Element

Failed