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index.test-d.ts
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index.test-d.ts
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import { expectAssignable, expectType, expectError } from 'tsd'
import {
defaultTheme,
mergeTheme,
StyleProps,
Intent,
Theme,
Fill,
Partial,
Pick,
Color,
ComboboxProps,
LinkProps
} from '.'
interface ThemeOverrides extends Partial<Pick<Theme, 'colors' | 'fills' | 'components'>> {
colors: {
speakers: Color<string[]>
}
fills: {
awesomeBlue: Fill
}
components: {
Button: {
appearances: {
primary: Partial<StyleProps<'Button'>>
warning: Partial<StyleProps<'Button'>>
}
}
}
}
const themeOverridesOrAdditions: ThemeOverrides = {
colors: {
speakers: ['#0f4880', '#1d781d', '#db0a5b', '#8d6708', '#d43900']
},
fills: {
awesomeBlue: {
color: '#3492eb',
backgroundColor: '#057ceb'
}
},
components: {
Button: {
appearances: {
primary: {
color: 'white',
backgroundColor: '#fc7ef8',
selectors: {
_hover: {
backgroundColor: '#fc03f0'
},
_focus: {
boxShadow: '0 0 0 2px #fccafa'
}
}
},
warning: {
color: 'white',
backgroundColor: '#fcef79'
}
}
}
}
}
// Test cases for default theme
expectType<string>(defaultTheme.colors.gray100)
expectType<Fill>(defaultTheme.fills.neutral)
expectType<string>(defaultTheme.fills.neutral.color)
expectType<string>(defaultTheme.fills.neutral.backgroundColor)
expectType<Intent>(defaultTheme.intents.info)
expectType<Intent>(defaultTheme.intents.danger)
expectType<Intent>(defaultTheme.intents.warning)
expectType<Intent>(defaultTheme.intents.success)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.baseStyle)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.sizes.small)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.sizes.medium)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.sizes.large)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.appearances.minimal)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.appearances.default)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.appearances.destructive)
expectType<Partial<StyleProps<'Button'>>>(defaultTheme.components.Button.appearances.primary)
expectType<Partial<StyleProps<'Text'>>>(defaultTheme.components.Text.sizes[300])
expectAssignable<Theme>(mergeTheme(defaultTheme, themeOverridesOrAdditions))
// Test cases for a custom theme merged w/ default
const customTheme = mergeTheme(defaultTheme, themeOverridesOrAdditions)
// Ensure original theme values are still strongly typed
expectAssignable<StyleProps<'Button'>['backgroundColor']>(
customTheme.components.Button.appearances.minimal.backgroundColor
)
// Ensure new values are strongly typed
expectAssignable<StyleProps<'Button'>['backgroundColor']>(
customTheme.components.Button.appearances.warning.backgroundColor
)
// Ensure original theme values are still strongly typed
expectType<string>(customTheme.colors.gray100)
expectType<Fill>(customTheme.fills.neutral)
expectType<string>(customTheme.fills.neutral.color)
expectType<string>(customTheme.fills.neutral.backgroundColor)
expectType<Intent>(customTheme.intents.info)
expectType<Intent>(customTheme.intents.danger)
expectType<Intent>(customTheme.intents.warning)
expectType<Intent>(customTheme.intents.success)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.baseStyle)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.sizes.small)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.sizes.medium)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.sizes.large)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.appearances.minimal)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.appearances.default)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.appearances.destructive)
expectType<Partial<StyleProps<'Button'>>>(customTheme.components.Button.appearances.primary)
expectType<Partial<StyleProps<'Text'>>>(customTheme.components.Text.sizes[300])
// Ensure new values are strongly typed
expectAssignable<Fill>(customTheme.fills.awesomeBlue)
expectType<string[]>(customTheme.colors.speakers)
// Negative case - attempting to reference pseudoselector not defined in index.d.ts
const themeWithNonExistentPseudoSelector = {
components: {
Button: {
baseStyle: {
_doesNotExist: {
backgroundColor: '#fc03f0'
}
}
}
}
}
expectError(mergeTheme(defaultTheme, themeWithNonExistentPseudoSelector))
// Negative case - attempting to assign colors property to string[] (should at least have a key wrapping it)
const themeWithTopLevelColorsArray = {
colors: ['#0f4880', '#1d781d', '#db0a5b', '#8d6708', '#d43900']
}
expectError(mergeTheme(defaultTheme, themeWithTopLevelColorsArray))
expectError<ComboboxProps>({ autocompleteProps: { children: 'error' } })
expectError<ComboboxProps>({ autocompleteProps: { onChange: () => {} } })
expectError<ComboboxProps>({ autocompleteProps: { items: [] } })
expectError<LinkProps>({ target: 'blank' })