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packages/nodes-base/nodes/ReadBinaryFiles/test/ReadBinaryFiles.test.ts

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+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import type { WorkflowTestData } from 'n8n-workflow';
+import path from 'path';
+
+describe('Test Read Binary Files Node', () => {
+	const testHarness = new NodeTestHarness();
+	const workflowData = testHarness.readWorkflowJSON('ReadBinaryFiles.workflow.json');
+	const node = workflowData.nodes.find((n) => n.name === 'Read Binary Files')!;
+	const dir = path.join(__dirname, 'data').split('\\').join('/');
+	node.parameters.fileSelector = `${dir}/*.json`;
+
+	const tests: WorkflowTestData[] = [
+		{
+			description: 'nodes/ReadBinaryFiles/test/ReadBinaryFiles.workflow.json',
+			input: {
+				workflowData,
+			},
+			output: {
+				assertBinaryData: true,
+				nodeData: {
+					'Read Binary Files': [
+						[
+							{
+								binary: {
+									data: {
+										mimeType: 'application/json',
+										fileType: 'json',
+										fileExtension: 'json',
+										data: 'ewoJInRpdGxlIjogIkxvcmVtIElwc3VtIgp9Cg==',
+										fileName: 'sample.json',
+										fileSize: '28 B',
+									},
+								},
+								json: {},
+							},
+							{
+								binary: {
+									data: {
+										mimeType: 'application/json',
+										fileType: 'json',
+										fileExtension: 'json',
+										data: 'ewoJInRpdGxlIjogIklwc3VtIExvcmVtIgp9Cg==',
+										fileName: 'sample2.json',
+										fileSize: '28 B',
+									},
+								},
+								json: {},
+							},
+						],
+					],
+				},
+			},
+		},
+	];
+
+	for (const testData of tests) {
+		testHarness.setupTest(testData);
+	}
+});