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export const tests = []
const t = (f) => tests.push(f)
// citiesOnly
t(({ eq, ctx }) =>
eq(citiesOnly(ctx.states), [
'Los Angeles',
'San Francisco',
'Miami',
'New York City',
'Juneau',
'Boston',
'Jackson',
'Utqiagvik',
'Albuquerque',
]),
)
t(({ eq, ctx }) => eq(ctx.mapCalls[0], ctx.states))
// upperCasingStates
t(({ eq, ctx }) =>
eq(upperCasingStates(ctx.cities), [
'Alabama',
'New Jersey',
'Alaska',
'New York',
'California',
'New Hampshire',
'Ohio',
'Texas',
'West Virginia',
]),
)
t(({ eq, ctx }) => eq(ctx.mapCalls.includes(ctx.cities), true))
// fahrenheitToCelsius
t(({ eq, ctx }) =>
eq(fahrenheitToCelsius(ctx.temps), [
'30°C',
'37°C',
'5°C',
'12°C',
'-13°C',
'21°C',
'-19°C',
]),
)
t(({ eq, ctx }) => eq(ctx.mapCalls.includes(ctx.temps), true))
// trimTemp
t(({ eq, ctx }) =>
eq(trimTemp(ctx.states), [
{
city: 'Los Angeles',
state: 'california',
region: 'West',
temperature: '101°F',
},
{
city: 'San Francisco',
state: 'california',
region: 'West',
temperature: '84°F',
},
{ city: 'Miami', state: 'Florida', region: 'South', temperature: '112°F' },
{
city: 'New York City',
state: 'new york',
region: 'North East',
temperature: '0°F',
},
{ city: 'Juneau', state: 'Alaska', region: 'West', temperature: '21°F' },
{
city: 'Boston',
state: 'massachussetts',
region: 'North East',
temperature: '45°F',
},
{
city: 'Jackson',
state: 'mississippi',
region: 'South',
temperature: '70°F',
},
{ city: 'Utqiagvik', state: 'Alaska', region: 'West', temperature: '-1°F' },
{
city: 'Albuquerque',
state: 'new mexico',
region: 'West',
temperature: '95°F',
},
]),
)
t(({ eq, ctx }) => eq(ctx.mapCalls.includes(ctx.states), true))
// tempForecasts
t(({ eq, ctx }) =>
eq(tempForecasts(ctx.states), [
'38°Celsius in Los Angeles, California',
'28°Celsius in San Francisco, California',
'44°Celsius in Miami, Florida',
'-18°Celsius in New York City, New York',
'-7°Celsius in Juneau, Alaska',
'7°Celsius in Boston, Massachussetts',
'21°Celsius in Jackson, Mississippi',
'-19°Celsius in Utqiagvik, Alaska',
'35°Celsius in Albuquerque, New Mexico',
]),
)
export const setup = () => {
const mapCalls = []
const _map = Array.prototype.map
Array.prototype.map = function () {
mapCalls.push(this)
return _map.apply(this, arguments)
}
const states = [
{
city: 'Los Angeles',
temperature: '101 °F',
state: 'california',
region: 'West',
},
{
city: 'San Francisco',
temperature: '84 °F',
state: 'california',
region: 'West',
},
{
city: 'Miami',
temperature: ' 112 °F',
state: 'Florida',
region: 'South',
},
{
city: 'New York City',
temperature: ' 0 °F',
state: 'new york',
region: 'North East',
},
{ city: 'Juneau', temperature: ' 21° F', state: 'Alaska', region: 'West' },
{
city: 'Boston',
temperature: '45 °F',
state: 'massachussetts',
region: 'North East',
},
{
city: 'Jackson',
temperature: ' 70°F ',
state: 'mississippi',
region: 'South',
},
{
city: 'Utqiagvik',
temperature: ' -1 °F',
state: 'Alaska',
region: 'West',
},
{
city: 'Albuquerque',
temperature: ' 95 °F',
state: 'new mexico',
region: 'West',
},
]
const cities = [
'alabama',
'new jersey',
'alaska',
'new york',
'california',
'new hampshire',
'ohio',
'texas',
'west virginia',
]
Object.getPrototypeOf([]).proto = ' [avoid for..in] '
const temps = ['86°F', '100°F', '41°F', '55°F', '10°F', '70°F', '-2°F']
Object.freeze(states)
Object.freeze(cities)
Object.freeze(temps)
return { mapCalls, states, cities, temps }
}
Object.freeze(tests)