90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package incrementor //nolint: testpackage
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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const maxLoops int64 = 42 // NOTE(toby3d): максимальное число итераций в тестах
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func TestGetNumber(t *testing.T) {
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i := New()
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assert.Zero(t, i.GetNumber())
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for j := int64(1); j < maxLoops; j++ {
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i.IncrementNumber()
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if !assert.Equal(t, j, i.GetNumber(), "number must be equal to loop step") {
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t.FailNow()
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}
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}
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}
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func TestIncrementNumber(t *testing.T) {
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i := New()
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for j := int64(1); j < maxLoops; j++ {
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i.IncrementNumber()
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if !assert.Equal(t, j, i.number, "number must be equal to loop step index") {
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t.FailNow()
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}
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}
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i.SetMaximumValue(maxLoops)
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i.IncrementNumber()
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assert.Zero(t, i.number, "number should be reset when the maximum is reached")
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}
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func TestSetMaximumValue(t *testing.T) {
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for _, tc := range []struct {
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name string // NOTE(toby3d): имя кейса
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inputMax int64 // NOTE(toby3d): устанавливаемый порог
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expMax int64 // NOTE(toby3d): ожидаемое порог
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inputNumber int64 // NOTE(toby3d): изначальное значение числа
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expNumber int64 // NOTE(toby3d): ожидаемое значение числа
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}{
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{
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name: "zero max to default",
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inputMax: 0,
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expMax: DefaultMaximumValue,
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}, {
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name: "negative max to default",
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inputMax: -24,
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expMax: DefaultMaximumValue,
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}, {
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name: "valid max input",
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inputMax: 42,
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expMax: 42,
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}, {
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name: "number below new max",
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inputMax: 42,
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inputNumber: 24,
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expMax: 42,
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expNumber: 24,
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}, {
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name: "number above new max",
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expNumber: 0,
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inputNumber: 420,
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expMax: 42,
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inputMax: 42,
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},
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// NOTE(toby3d): число больше чем DefaultMaximumValue невозможно установить, так как оно приведёт к
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// ошибке компиляции: "constant 9223372036854775808 overflows int"
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} {
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tc := tc
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t.Run(tc.name, func(t *testing.T) {
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i := New()
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i.number = tc.inputNumber
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i.SetMaximumValue(tc.inputMax)
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if !assert.Equal(t, i.maxValue, tc.expMax) || !assert.Equal(t, i.number, tc.expNumber) {
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t.FailNow()
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}
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})
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}
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}
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