71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
package checksum
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import (
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"crypto/rand"
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"fmt"
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"log"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestDigit(t *testing.T) {
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t.Run("Empty", func(t *testing.T) {
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data := ""
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expected := "0"
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result := Digit([]byte(data))
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t.Logf("Digit(%s): result %d, expected %s", data, result, expected)
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assert.Equal(t, expected, fmt.Sprintf("%d", result))
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})
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t.Run("One", func(t *testing.T) {
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data := "1"
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expected := "3"
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result := Digit([]byte(data))
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t.Logf("Digit(%s): result %d, expected %s", data, result, expected)
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assert.Equal(t, expected, fmt.Sprintf("%d", result))
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})
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t.Run("Serial", func(t *testing.T) {
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data := "zr2g80wvjmm1zwzg"
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expected := "8"
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result := Digit([]byte(data))
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t.Logf("Digit(%s): result %d, expected %s", data, result, expected)
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assert.Equal(t, expected, fmt.Sprintf("%d", result))
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})
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t.Run("HelloWorld", func(t *testing.T) {
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data := "Hello World!"
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expected := "5"
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result := Digit([]byte(data))
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t.Logf("Digit(%s): result %d, expected %s", data, result, expected)
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assert.Equal(t, expected, fmt.Sprintf("%d", result))
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})
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t.Run("Rand", func(t *testing.T) {
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for i := 0; i < 100; i++ {
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b := make([]byte, 24)
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if _, err := rand.Read(b); err != nil {
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log.Fatal(err)
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}
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result := Digit(b)
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if result < 0 {
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t.Fatal("result < 0")
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} else if result > 9 {
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t.Fatal("result > 9")
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}
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}
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})
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}
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