Fix axis.helper unit tests

Author: colinl

test/helpers/axis.helper.spec.js

@@ -5,21 +5,22 @@ const axisHelper = require('../../ui/src/widgets/ui-chart/helpers/axis.helper.js
 describe('axis.helper', function () {
     describe('getAxisMinMax', function () {
         const testCases = [
-            { min: 3.2, max: 7.8, expectedMin: 0, expectedMax: 10, description: 'values < 10' },
-            { min: 15.7, max: 23.4, expectedMin: 10, expectedMax: 30, description: 'values 10-99' },
+            { min: 3.2, max: 3.2, expectedMin: 3.2, expectedMax: 4.2, description: 'min === max' },
+            { min: 3.2, max: 7.8, expectedMin: 3, expectedMax: 8, description: 'values < 10' },
+            { min: 15.7, max: 23.4, expectedMin: 14, expectedMax: 24, description: 'values 10-99' },
             { min: 47.3, max: 89.1, expectedMin: 40, expectedMax: 90, description: 'values 10-99' },
             { min: 123.5, max: 456.7, expectedMin: 100, expectedMax: 500, description: 'values 100-999' },
             { min: 234.8, max: 567.2, expectedMin: 200, expectedMax: 600, description: 'values 100-999' },
             { min: 1234.5, max: 4567.8, expectedMin: 1000, expectedMax: 5000, description: 'values 1000-9999' },
             { min: 2345.6, max: 5678.9, expectedMin: 2000, expectedMax: 6000, description: 'values 1000-9999' },
-            { min: 1234.5, max: 2345.6, expectedMin: 1000, expectedMax: 3000, description: 'values 1000-9999' },
+            { min: 1234.5, max: 2345.6, expectedMin: 1200, expectedMax: 2400, description: 'values 1000-9999' },
             { min: 567.8, max: 1234.5, expectedMin: 500, expectedMax: 1300, description: 'mixed ranges' },
-            { min: 89.1, max: 1234.5, expectedMin: 0, expectedMax: 2000, description: 'mixed ranges' },
-            { min: 512.1, max: 526.5, expectedMin: 510, expectedMax: 530, description: 'close values in 100-999 range' },
-            { min: 412.1, max: 526.5, expectedMin: 400, expectedMax: 600, description: 'close values in 100-999 range' },
-            { min: -183, max: -165, expectedMin: -190, expectedMax: -160, description: 'negative values' },
-            { min: -0.3, max: 0, expectedMin: -1, expectedMax: 0, description: 'negative small values' },
-            { min: 0.000154, max: 0.000195, expectedMin: 0, expectedMax: 0.1, description: 'very small decimal values' }
+            { min: 89.1, max: 1234.5, expectedMin: 0, expectedMax: 1400, description: 'mixed ranges' },
+            { min: 512.1, max: 526.5, expectedMin: 512, expectedMax: 528, description: 'close values in 100-999 range' },
+            { min: 412.1, max: 526.5, expectedMin: 400, expectedMax: 540, description: 'close values in 100-999 range' },
+            { min: -183, max: -165, expectedMin: -185, expectedMax: -165, description: 'negative values' },
+            { min: -0.3, max: 0, expectedMin: -0.3, expectedMax: 0, description: 'negative small values' },
+            { min: 0.000154, max: 0.000195, expectedMin: 0.00015, expectedMax: 0.00020, description: 'very small decimal values' }
         ]
 
         testCases.forEach((testCase, index) => {
@@ -34,14 +35,14 @@ describe('axis.helper', function () {
     describe('getAxisMin', function () {
         it('should return only the min value', function () {
             const result = axisHelper.getAxisMin({ min: 15.7, max: 23.4 })
-            result.should.equal(10)
+            result.should.equal(14)
         })
     })
 
     describe('getAxisMax', function () {
         it('should return only the max value', function () {
             const result = axisHelper.getAxisMax({ min: 15.7, max: 23.4 })
-            result.should.equal(30)
+            result.should.equal(24)
         })
     })
 })