go-mail/random_test.go

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// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
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//
// SPDX-License-Identifier: MIT
package mail
import (
"strings"
"testing"
)
// TestRandomStringSecure tests the randomStringSecure method
func TestRandomStringSecure(t *testing.T) {
tt := []struct {
testName string
length int
mustNotMatch string
}{
{"20 chars", 20, "'"},
{"100 chars", 100, "'"},
{"1000 chars", 1000, "'"},
}
for _, tc := range tt {
t.Run(tc.testName, func(t *testing.T) {
rs, err := randomStringSecure(tc.length)
if err != nil {
t.Errorf("random string generation failed: %s", err)
}
if strings.Contains(rs, tc.mustNotMatch) {
t.Errorf("random string contains unexpected character. got: %s, not-expected: %s",
rs, tc.mustNotMatch)
}
if len(rs) != tc.length {
t.Errorf("random string length does not match. expected: %d, got: %d", tc.length, len(rs))
}
})
}
}
// TestRandomNum tests the randomNum method
func TestRandomNum(t *testing.T) {
tt := []struct {
testName string
max int
}{
{"Max: 1", 1},
{"Max: 20", 20},
{"Max: 50", 50},
{"Max: 100", 100},
{"Max: 1000", 1000},
{"Max: 10000", 10000},
{"Max: 100000000", 100000000},
}
for _, tc := range tt {
t.Run(tc.testName, func(t *testing.T) {
rn := randNum(tc.max)
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if rn > tc.max {
t.Errorf("random number generation failed: %d is bigger than given value %d", rn, tc.max)
}
})
}
}
func TestRandomNumZero(t *testing.T) {
rn := randNum(0)
if rn != 0 {
t.Errorf("random number generation failed: %d is not zero", rn)
}
}