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Ignore invalid log scale min and max #6058

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merged 7 commits into from Feb 24, 2019
Merged

Ignore invalid log scale min and max #6058

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9e8cf8e
Ignore invalid log scale min and max
benmccann Feb 9, 2019
d948325
Check for additional invalid values
benmccann Feb 12, 2019
034e222
Fix lint error
benmccann Feb 12, 2019
46bd3aa
Add a TODO for v3
benmccann Feb 13, 2019
46aa706
Use helpers.isFinite
benmccann Feb 13, 2019
4fc7704
nonNegativeOrDefault
benmccann Feb 14, 2019
8f15c80
fix comment
benmccann Feb 14, 2019
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13 changes: 9 additions & 4 deletions src/scales/scale.logarithmic.js
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Expand Up @@ -62,6 +62,11 @@ var defaultConfig = {
}
};

// TODO(v3): change this to positiveOrDefault
function nonNegativeOrDefault(value, defaultValue) {
return helpers.isFinite(value) && value >= 0 ? value : defaultValue;
}

module.exports = Scale.extend({
determineDataLimits: function() {
var me = this;
Expand Down Expand Up @@ -174,8 +179,8 @@ module.exports = Scale.extend({
var DEFAULT_MIN = 1;
var DEFAULT_MAX = 10;

me.min = valueOrDefault(tickOpts.min, me.min);
me.max = valueOrDefault(tickOpts.max, me.max);
me.min = nonNegativeOrDefault(tickOpts.min, me.min);
me.max = nonNegativeOrDefault(tickOpts.max, me.max);

if (me.min === me.max) {
if (me.min !== 0 && me.min !== null) {
Expand Down Expand Up @@ -211,8 +216,8 @@ module.exports = Scale.extend({
var reverse = !me.isHorizontal();

var generationOptions = {
min: tickOpts.min,
max: tickOpts.max
min: nonNegativeOrDefault(tickOpts.min),
max: nonNegativeOrDefault(tickOpts.max)
};
var ticks = me.ticks = generateTicks(generationOptions, me);

Expand Down
62 changes: 62 additions & 0 deletions test/specs/scale.logarithmic.tests.js
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Expand Up @@ -477,6 +477,68 @@ describe('Logarithmic Scale tests', function() {
expect(yScale.ticks[tickCount - 1]).toBe(10);
});

it('should ignore negative min and max options', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 1, 1, 2, 1, 0]
}],
labels: []
},
options: {
scales: {
yAxes: [{
id: 'yScale',
type: 'logarithmic',
ticks: {
min: -10,
max: -1010,
callback: function(value) {
return value;
}
}
}]
}
}
});

var yScale = chart.scales.yScale;
expect(yScale.min).toBe(0);
expect(yScale.max).toBe(2);
});

it('should ignore invalid min and max options', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 1, 1, 2, 1, 0]
}],
labels: []
},
options: {
scales: {
yAxes: [{
id: 'yScale',
type: 'logarithmic',
ticks: {
min: '',
max: false,
callback: function(value) {
return value;
}
}
}]
}
}
});

var yScale = chart.scales.yScale;
expect(yScale.min).toBe(0);
expect(yScale.max).toBe(2);
});

it('should generate tick marks', function() {
var chart = window.acquireChart({
type: 'bar',
Expand Down