55 lines
2.3 KiB
TypeScript
55 lines
2.3 KiB
TypeScript
import {AsyncTestCompleter, beforeEach, beforeEachProviders, ddescribe, describe, expect, iit, inject, it, xdescribe, xit} from '@angular/core/testing/testing_internal';
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import {Tree, TreeNode} from '../src/segments';
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export function main() {
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describe('tree', () => {
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it('should return the root of the tree', () => {
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let t = new Tree<any>(new TreeNode<number>(1, []));
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expect(t.root).toEqual(1);
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});
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it('should return the parent of a node', () => {
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let t = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(2, [])]));
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expect(t.parent(1)).toEqual(null);
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expect(t.parent(2)).toEqual(1);
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});
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it('should return the children of a node', () => {
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let t = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(2, [])]));
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expect(t.children(1)).toEqual([2]);
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expect(t.children(2)).toEqual([]);
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});
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it('should return the first child of a node', () => {
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let t = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(2, [])]));
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expect(t.firstChild(1)).toEqual(2);
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expect(t.firstChild(2)).toEqual(null);
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});
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it('should return the path to the root', () => {
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let t = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(2, [])]));
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expect(t.pathFromRoot(2)).toEqual([1, 2]);
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});
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describe('contains', () => {
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it('should work', () => {
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let tree = new Tree<any>(
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new TreeNode<number>(1, [new TreeNode<number>(2, []), new TreeNode<number>(3, [])]));
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let subtree1 = new Tree<any>(new TreeNode<number>(1, []));
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let subtree2 = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(2, [])]));
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let subtree3 = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(3, [])]));
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let notSubtree1 = new Tree<any>(new TreeNode<number>(1, [new TreeNode<number>(4, [])]));
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let notSubtree2 = new Tree<any>(
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new TreeNode<number>(1, [new TreeNode<number>(2, [new TreeNode<number>(4, [])])]));
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expect(tree.contains(subtree1)).toEqual(true);
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expect(tree.contains(subtree2)).toEqual(true);
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expect(tree.contains(subtree3)).toEqual(true);
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expect(tree.contains(notSubtree1)).toEqual(false);
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expect(tree.contains(notSubtree2)).toEqual(false);
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});
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});
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});
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}
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