map: fix subtype filter dropping every measuring tool

frontend/src/utils/mapColors.spec.js

@@ -0,0 +1,38 @@
+import { describe, it, expect } from 'vitest'
+import { getSubtypeId, resolveMarkerColor } from './mapColors'
+
+// One case per asset type that carries a subtype. A missing branch here means
+// the map subtype filter silently drops every asset of that type.
+const cases = [
+  ['Machine', { machinetypeid: 3 }],
+  ['Computer', { computertypeid: 3 }],
+  ['Network Device', { networkdevicetypeid: 3 }],
+  ['network_device', { networkdevicetypeid: 3 }],
+  ['Printer', { printertypeid: 3 }],
+  ['Measuring Tool', { measuringtooltypeid: 3 }],
+]
+
+describe('getSubtypeId', () => {
+  it.each(cases)('resolves the subtype id for %s', (assettype, typedata) => {
+    expect(getSubtypeId({ assettype, typedata })).toBe(3)
+  })
+
+  it('returns null without typedata', () => {
+    expect(getSubtypeId({ assettype: 'Machine' })).toBeNull()
+  })
+
+  it('returns null for an asset type with no subtype table', () => {
+    expect(getSubtypeId({ assettype: 'Furniture', typedata: {} })).toBeNull()
+  })
+})
+
+describe('resolveMarkerColor', () => {
+  it('colors a measuring tool by its subtype when a type is selected', () => {
+    const asset = { assettype: 'Measuring Tool', typedata: { measuringtooltypeid: 7 } }
+    const color = resolveMarkerColor(asset, {
+      selectedType: 'Measuring Tool',
+      subtypeColors: { 7: '#00BCD4' },
+    })
+    expect(color).toBe('#00BCD4')
+  })
+})