[6a3a178] | 1 | /**
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| 2 | * @license
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| 3 | * Copyright Google LLC All Rights Reserved.
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| 4 | *
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| 5 | * Use of this source code is governed by an MIT-style license that can be
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| 6 | * found in the LICENSE file at https://angular.io/license
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| 7 | */
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| 8 | import { ComponentHarness, HarnessPredicate } from '@angular/cdk/testing';
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| 9 | import { MatTreeNodeHarness } from './node-harness';
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| 10 | import { TreeHarnessFilters, TreeNodeHarnessFilters } from './tree-harness-filters';
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| 11 | export declare type TextTree = {
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| 12 | text?: string;
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| 13 | children?: TextTree[];
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| 14 | };
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| 15 | /** Harness for interacting with a standard mat-tree in tests. */
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| 16 | export declare class MatTreeHarness extends ComponentHarness {
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| 17 | /** The selector for the host element of a `MatTableHarness` instance. */
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| 18 | static hostSelector: string;
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| 19 | /**
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| 20 | * Gets a `HarnessPredicate` that can be used to search for a tree with specific attributes.
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| 21 | * @param options Options for narrowing the search
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| 22 | * @return a `HarnessPredicate` configured with the given options.
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| 23 | */
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| 24 | static with(options?: TreeHarnessFilters): HarnessPredicate<MatTreeHarness>;
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| 25 | /** Gets all of the nodes in the tree. */
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| 26 | getNodes(filter?: TreeNodeHarnessFilters): Promise<MatTreeNodeHarness[]>;
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| 27 | /**
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| 28 | * Gets an object representation for the visible tree structure
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| 29 | * If a node is under an unexpanded node it will not be included.
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| 30 | * Eg.
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| 31 | * Tree (all nodes expanded):
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| 32 | * `
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| 33 | * <mat-tree>
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| 34 | * <mat-tree-node>Node 1<mat-tree-node>
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| 35 | * <mat-nested-tree-node>
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| 36 | * Node 2
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| 37 | * <mat-nested-tree-node>
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| 38 | * Node 2.1
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| 39 | * <mat-tree-node>
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| 40 | * Node 2.1.1
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| 41 | * <mat-tree-node>
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| 42 | * <mat-nested-tree-node>
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| 43 | * <mat-tree-node>
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| 44 | * Node 2.2
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| 45 | * <mat-tree-node>
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| 46 | * <mat-nested-tree-node>
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| 47 | * </mat-tree>`
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| 48 | *
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| 49 | * Tree structure:
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| 50 | * {
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| 51 | * children: [
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| 52 | * {
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| 53 | * text: 'Node 1',
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| 54 | * children: [
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| 55 | * {
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| 56 | * text: 'Node 2',
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| 57 | * children: [
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| 58 | * {
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| 59 | * text: 'Node 2.1',
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| 60 | * children: [{text: 'Node 2.1.1'}]
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| 61 | * },
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| 62 | * {text: 'Node 2.2'}
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| 63 | * ]
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| 64 | * }
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| 65 | * ]
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| 66 | * }
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| 67 | * ]
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| 68 | * };
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| 69 | */
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| 70 | getTreeStructure(): Promise<TextTree>;
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| 71 | /**
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| 72 | * Recursively collect the structured text of the tree nodes.
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| 73 | * @param nodes A list of tree nodes
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| 74 | * @param level The level of nodes that are being accounted for during this iteration
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| 75 | * @param parentExpanded Whether the parent of the first node in param nodes is expanded
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| 76 | */
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| 77 | private _getTreeStructure;
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| 78 | private _addChildToNode;
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| 79 | }
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