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getMergedIntervals.test.js
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116 lines (101 loc) · 2.29 KB
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import getMergedIntervals from './getMergedIntervals';
import Interval from '../graphics/structs/Interval';
function getIntervals(items) {
var result = [];
for(var index = 0; index < items.length; index+=1) {
var item = items[index];
result.push( new Interval(item[0], item[1], item[2]));
}
return result;
}
test('getMergedIntervals - function should merge all intervals into one', () => {
const items = [
[1, 10, "Second"],
[2, 20, "Third"],
[3, 30, "Toronto"],
[4, 40, "NY"],
[5, 50, "Seoul"],
[6, 60, "Maple"],
[7, 70, "Vaughan"],
[8, 80, "Redmond"]
];
var result = [];
getMergedIntervals(this, getIntervals(items), function(interval) {
result.push(interval);
})
expect(result).toEqual([
{
from: 1,
to: 80,
context: "Second"
}
]);
});
test('getMergedIntervals - function should merge all intervals into one and preserve first item context', () => {
const items = [
[8, 80, "Redmond"],
[2, 20, "Third"],
[4, 40, "NY"],
[6, 60, "Maple"],
[3, 30, "Toronto"],
[7, 70, "Vaughan"],
[5, 50, "Seoul"],
[1, 10, "Second"]
];
var result = [];
getMergedIntervals(this, getIntervals(items), function(interval) {
result.push(interval);
})
expect(result).toEqual([
{
from: 1,
to: 80,
context: "Redmond"
}
]);
});
test('getMergedIntervals - function should merge all intervals into two intervals', () => {
const items = [
[20, 20, "Third"],
[8, 40, "Redmond"],
[55, 65, "Vaughan"],
[40, 40, "NY"],
[50, 60, "Toronto"],
[8, 8, "Maple"],
[52, 57, "Seoul"]
];
var result = [];
getMergedIntervals(this, getIntervals(items), function(interval) {
result.push(interval);
})
expect(result).toEqual([
{
from: 8,
to: 40,
context: "Third"
},
{
from: 50,
to: 65,
context: "Vaughan"
}
]);
});
test('getMergedIntervals - function should merge connected intervals', () => {
const items = [
[20, 40, "Redmond"],
[20, 20, "Third"],
[40, 60, "Vaughan"]
];
var result = [];
getMergedIntervals(this, getIntervals(items), function(interval) {
result.push(interval);
})
expect(result).toEqual([
{
from: 20,
to: 60,
context: "Redmond"
}
]);
});