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Merged
merged 3 commits into from
Aug 2, 2022
Merged

Wrapping the example matrix with outer array #1057

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b9998a6
Wrapping the example matrix with outer array
tmkasun Jul 14, 2022
959aeee
add test cases for NumberOfIslands
tmkasun Jul 19, 2022
ef97777
Address review comments
tmkasun Aug 1, 2022
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7 changes: 0 additions & 7 deletions Graphs/NumberOfIslands.js
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Original file line number Diff line number Diff line change
Expand Up @@ -79,10 +79,3 @@ const islands = (matrixGrid) => {
}

export { islands }

// islands(
// ['1', '1', '0', '0', '0'],
// ['1', '1', '0', '0', '0'],
// ['0', '0', '1', '0', '0'],
// ['0', '0', '0', '1', '1']
// )
31 changes: 31 additions & 0 deletions Graphs/test/NumberOfIslands.test.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
import { islands } from '../NumberOfIslands'

describe('Number of Islands', () => {
test('Graph with three islands', () => {
const graph = [
['1', '1', '0', '0', '0'],
['1', '1', '0', '0', '0'],
['0', '0', '1', '0', '0'],
['0', '0', '0', '1', '1']
]
expect(islands(graph)).toBe(3)
})

test('Graph with only one island', () => {
const graph = [
['1', '1'],
['1', '1'],
['0', '0'],
['0', '0']
]
expect(islands(graph)).toBe(1)
})

test('No islands', () => {
const graph = [
['0', '0'],
['0', '0']
]
expect(islands(graph)).toBe(0)
})
})