Tested and fixed proficiencies by tag

app/imports/api/engine/computation/computeComputation/tests/computeProficiencies.testFn.js

@@ -0,0 +1,64 @@
+import { buildComputationFromProps } from '/imports/api/engine/computation/buildCreatureComputation.js';
+import { assert } from 'chai';
+import computeCreatureComputation from '../../computeCreatureComputation.js';
+import clean from '../../utility/cleanProp.testFn.js';
+
+export default function () {
+  const computation = buildComputationFromProps(testProperties);
+  computeCreatureComputation(computation);
+  const prop = id => computation.propsById[id];
+  assert.equal(
+    prop('strengthId').value, 8,
+    'The proficiency bonus should not change the strength score'
+  );
+  assert.equal(
+    prop('strengthId').modifier, -1,
+    'The proficiency bonus should not change the strength modifier'
+  );
+  assert.exists(prop('actionId').attackRoll.proficiencies, 'The proficiency aggregator should be here')
+  assert.exists(prop('actionId').attackRoll.proficiencies[0], 'The proficiency should be here')
+  // attack roll = strength.mod + proficiencyBonus/2 rounded down
+  // = -1 + 13/2 = -1 + 6 = 5
+  assert.equal(
+    prop('actionId').attackRoll.value, 5,
+    'The proficiency should apply correctly to modify the attack roll'
+  );
+}
+
+var testProperties = [
+  clean({
+    _id: 'strengthId',
+    variableName: 'strength',
+    type: 'attribute',
+    attributeType: 'ability',
+    baseValue: {
+      calculation: '8'
+    },
+  }),
+  clean({
+    _id: 'actionId',
+    type: 'action',
+    ancestors: [{ id: 'charId' }],
+    attackRoll: {
+      calculation: 'strength.modifier',
+    },
+    tags: ['rapier', 'martial weapon', 'weapon', 'attack']
+  }),
+  clean({
+    _id: 'profBonusId',
+    type: 'attribute',
+    variableName: 'proficiencyBonus',
+    ancestors: [{ id: 'charId' }],
+    baseValue: {
+      calculation: '13'
+    },
+  }),
+  clean({
+    _id: 'tagTargetedProficiency',
+    type: 'proficiency',
+    stats: ['strength'], // Should be ignored, we are targeting by tags
+    value: 0.49,
+    targetByTags: true,
+    targetTags: ['martial weapon']
+  }),
+];