kibanamachine
diff --git a/‎x-pack/solutions/security/plugins/security_solution/scripts/telemetry/build_ebt_data_view.test.ts‎
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+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import axios from 'axios';
+import { flattenSchema, upsertRuntimeFields } from './build_ebt_data_view';
+
+jest.mock('axios', () => ({
+  __esModule: true,
+  default: {
+    put: jest.fn(),
+  },
+}));
+
+describe('upsertRuntimeFields', () => {
+  const url = 'http://fake_url';
+  const headers = {
+    Authorization: 'ApiKey abc',
+    'kbn-xsrf': 'xxx',
+    'Content-Type': 'application/json',
+  };
+
+  beforeEach(() => {
+    jest.resetAllMocks();
+    (axios.put as jest.Mock).mockResolvedValue({});
+  });
+
+  test('sends one PUT per string field with correct payload and headers', async () => {
+    const fields = {
+      a: 'keyword',
+      'nested.b': 'long',
+      'deep.x.y': 'date',
+    };
+
+    await upsertRuntimeFields(fields, url, headers);
+
+    expect(axios.put).toHaveBeenCalledTimes(3);
+
+    const calls = (axios.put as jest.Mock).mock.calls.map(([callUrl, payload, opts]) => ({
+      callUrl,
+      name: payload.name,
+      type: payload.runtimeField?.type,
+      opts,
+    }));
+
+    const names = new Set(calls.map((c) => c.name));
+    const types = new Set(calls.map((c) => c.type));
+    const urls = new Set(calls.map((c) => c.callUrl));
+    const allHeadersOk = calls.every(
+      (c) => JSON.stringify(c.opts?.headers) === JSON.stringify(headers)
+    );
+
+    expect(names).toEqual(new Set(['properties.a', 'properties.nested.b', 'properties.deep.x.y']));
+    expect(types).toEqual(new Set(['keyword', 'long', 'date']));
+    expect(urls).toEqual(new Set([url]));
+    expect(allHeadersOk).toBe(true);
+  });
+
+  test('ignores non-string field values', async () => {
+    const fields = {
+      ok: 'ip',
+      skipNull: null,
+      skipObj: { t: 'keyword' },
+      skipNum: 123,
+    };
+
+    await upsertRuntimeFields(fields as any, url, headers);
+
+    expect(axios.put).toHaveBeenCalledTimes(1);
+    const [callUrl, payload, opts] = (axios.put as jest.Mock).mock.calls[0];
+
+    expect(callUrl).toBe(url);
+    expect(payload).toEqual({
+      name: 'properties.ok',
+      runtimeField: { type: 'ip' },
+    });
+    expect(opts).toEqual({ headers });
+  });
+
+  test('handles dotted field names correctly', async () => {
+    const fields = {
+      'one.two.three': 'double',
+    };
+
+    await upsertRuntimeFields(fields, url, headers);
+
+    const [, payload] = (axios.put as jest.Mock).mock.calls[0];
+    expect(payload.name).toBe('properties.one.two.three');
+    expect(payload.runtimeField.type).toBe('double');
+  });
+
+  describe('flattenSchema ', () => {
+    test('flattens root primitive fields', () => {
+      const schema = {
+        a: { type: 'keyword' },
+        b: { type: 'long' },
+        c: { type: 'date' },
+        d: { type: 'ip' },
+        e: { type: 'double' },
+        f: { type: 'boolean' },
+        g: { type: 'text' },
+        h: { type: 'lookup' },
+        i: { type: 'geo_point' },
+        j: { type: 'composite' },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        a: 'keyword',
+        b: 'long',
+        c: 'date',
+        d: 'ip',
+        e: 'double',
+        f: 'boolean',
+        g: 'text',
+        h: 'lookup',
+        i: 'geo_point',
+        j: 'composite',
+      });
+    });
+
+    test('flattens nested objects via properties', () => {
+      const schema = {
+        parent: {
+          properties: {
+            child: { type: 'ip' },
+            inner: {
+              properties: {
+                leaf: { type: 'double' },
+                flag: { type: 'boolean' },
+              },
+            },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'parent.child': 'ip',
+        'parent.inner.leaf': 'double',
+        'parent.inner.flag': 'boolean',
+      });
+    });
+
+    test('handles object node without "properties" but with nested shape', () => {
+      const schema = {
+        abc: {
+          foo: { type: 'keyword' },
+          bar: {
+            baz: { type: 'long' },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'abc.foo': 'keyword',
+        'abc.bar.baz': 'long',
+      });
+    });
+
+    test('when node has type and properties, type takes precedence and children are not expanded', () => {
+      const schema = {
+        node: {
+          type: 'keyword',
+          properties: {
+            x: { type: 'long' },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        node: 'keyword',
+      });
+    });
+
+    test('deeply nested mixed primitives and objects', () => {
+      const schema = {
+        root: {
+          properties: {
+            a: { type: 'keyword' },
+            obj: {
+              properties: {
+                b: { type: 'long' },
+                c: { type: 'text' },
+                d: {
+                  properties: {
+                    e: { type: 'date' },
+                  },
+                },
+              },
+            },
+          },
+        },
+        lone: { type: 'ip' },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'root.a': 'keyword',
+        'root.obj.b': 'long',
+        'root.obj.c': 'text',
+        'root.obj.d.e': 'date',
+        lone: 'ip',
+      });
+    });
+
+    test('ignores non-object or null schema nodes', () => {
+      const schema = {
+        a: null,
+        b: 42,
+        c: 'str',
+        d: undefined,
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({});
+    });
+
+    test('array of primitive types maps to item type', () => {
+      const schema = {
+        tags: { type: 'array', items: { type: 'keyword' } },
+        counts: { type: 'array', items: { type: 'long' } },
+        dates: { type: 'array', items: { type: 'date' } },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        tags: 'keyword',
+        counts: 'long',
+        dates: 'date',
+      });
+    });
+
+    test('array of objects flattens item properties with parent prefix', () => {
+      const schema = {
+        rules: {
+          type: 'array',
+          items: {
+            properties: {
+              name: { type: 'keyword' },
+              score: { type: 'integer' },
+              meta: {
+                properties: {
+                  enabled: { type: 'boolean' },
+                },
+              },
+            },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'rules.name': 'keyword',
+        'rules.score': 'integer',
+        'rules.meta.enabled': 'boolean',
+      });
+    });
+
+    test('array without items is emitted as array', () => {
+      const schema = {
+        unknown: { type: 'array' },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        unknown: 'array',
+      });
+    });
+
+    test('array with unknown item shape is emitted as array', () => {
+      const schema = {
+        misc: { type: 'array', items: {} },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        misc: 'array',
+      });
+    });
+
+    test('nested arrays: array of objects containing array of primitives', () => {
+      const schema = {
+        groups: {
+          type: 'array',
+          items: {
+            properties: {
+              ids: { type: 'array', items: { type: 'long' } },
+              labels: { type: 'array', items: { type: 'keyword' } },
+            },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'groups.ids': 'long',
+        'groups.labels': 'keyword',
+      });
+    });
+
+    test('deeply nested arrays in objects and objects in arrays', () => {
+      const schema = {
+        container: {
+          properties: {
+            matrix: { type: 'array', items: { type: 'array', items: { type: 'double' } } },
+            wrappers: {
+              type: 'array',
+              items: {
+                properties: {
+                  item: {
+                    properties: {
+                      values: { type: 'array', items: { type: 'ip' } },
+                    },
+                  },
+                },
+              },
+            },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'container.matrix': 'array',
+        'container.wrappers.item.values': 'ip',
+      });
+    });
+
+    test('mixed: object properties and arrays coexist', () => {
+      const schema = {
+        user: {
+          properties: {
+            name: { type: 'keyword' },
+            roles: { type: 'array', items: { type: 'keyword' } },
+            sessions: {
+              type: 'array',
+              items: {
+                properties: {
+                  started_at: { type: 'date' },
+                  device: { type: 'text' },
+                },
+              },
+            },
+          },
+        },
+      };
+
+      const out = flattenSchema(schema);
+
+      expect(out).toEqual({
+        'user.name': 'keyword',
+        'user.roles': 'keyword',
+        'user.sessions.started_at': 'date',
+        'user.sessions.device': 'text',
+      });
+    });
+  });
+});