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test: verify AbstractGraph.createHandler factory method delegation by tbouffard · Pull Request #819 · maxGraph/maxGraph · GitHub

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test: verify AbstractGraph.createHandler factory method delegation #819

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tbouffard merged 3 commits into from
May 7, 2025
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test: verify AbstractGraph.createHandler factory method delegation #819

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4b1ec2c
test: verify AbstractGraph.createHandler factory method delegation
tbouffard May 7, 2025
19b42d2
setup: unregister all edge styles in all tests to avoid side effects
tbouffard May 7, 2025
4451016
remove commented code [skip ci]
tbouffard May 7, 2025
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65 changes: 57 additions & 8 deletions packages/core/__tests__/view/Graph.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import {
EdgeSegmentHandler,
EdgeStyle,
type EdgeStyleFunction,
EdgeStyleRegistry,
ElbowEdgeHandler,
Point,
Rectangle,
Expand All @@ -37,6 +38,13 @@ const customEdgeStyle: EdgeStyleFunction = () => {
// do nothing, we just need a custom implementation that is not registered by default
};

beforeEach(() => {
unregisterAllEdgeStyles();
});
afterAll(() => {
unregisterAllEdgeStyles();
});

describe('isOrthogonal', () => {
test('Style of the CellState, orthogonal: true', () => {
const graph = new BaseGraph();
Expand All @@ -57,12 +65,8 @@ describe('isOrthogonal', () => {

describe('Default builtin styles registered', () => {
beforeEach(() => {
unregisterAllEdgeStyles();
registerDefaultEdgeStyles();
});
afterAll(() => {
unregisterAllEdgeStyles();
});

test.each([
['EntityRelation', EdgeStyle.EntityRelation],
Expand Down Expand Up @@ -128,12 +132,8 @@ const createCellStateOfEdge = (graph: AbstractGraph): CellState =>
describe('createEdgeHandler', () => {
describe('Default builtin styles registered', () => {
beforeEach(() => {
unregisterAllEdgeStyles();
registerDefaultEdgeStyles();
});
afterAll(() => {
unregisterAllEdgeStyles();
});

test.each([
['ElbowConnector', EdgeStyle.ElbowConnector],
Expand Down Expand Up @@ -190,6 +190,55 @@ describe('createEdgeHandler', () => {
expectExactInstanceOfEdgeHandler(graph.createEdgeHandler(cellState, edgeStyle));
}
);

describe('Custom edge handler', () => {
test('default', () => {
class CustomEdgeHandler extends EdgeHandler {}
const edgeStyle = customEdgeStyle;

const graph = new BaseGraph();
graph.createEdgeHandlerInstance = (state) => {
return new CustomEdgeHandler(state);
};

const cellState = createCellStateOfEdge(graph);
expect(graph.createEdgeHandler(cellState, edgeStyle)).toBeInstanceOf(
CustomEdgeHandler
);
});

test('elbow', () => {
class CustomEdgeHandler extends ElbowEdgeHandler {}
const edgeStyle = customEdgeStyle;
EdgeStyleRegistry.add('custom', edgeStyle, { handlerKind: 'elbow' });

const graph = new BaseGraph();
graph.createElbowEdgeHandler = (state) => {
return new CustomEdgeHandler(state);
};

const cellState = createCellStateOfEdge(graph);
expect(graph.createEdgeHandler(cellState, edgeStyle)).toBeInstanceOf(
CustomEdgeHandler
);
});

test('segment', () => {
class CustomEdgeHandler extends EdgeSegmentHandler {}
const edgeStyle = customEdgeStyle;
EdgeStyleRegistry.add('custom', edgeStyle, { handlerKind: 'segment' });

const graph = new BaseGraph();
graph.createEdgeSegmentHandler = (state) => {
return new CustomEdgeHandler(state);
};

const cellState = createCellStateOfEdge(graph);
expect(graph.createEdgeHandler(cellState, edgeStyle)).toBeInstanceOf(
CustomEdgeHandler
);
});
});
});

describe('createHandler', () => {
Expand Down
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