5362614c3e
Introduces Field, Rule, ValidateAll, ResetFields, and AddError for declarative input validation. Includes built-in rules (Required, MinLen, MaxLen, Min, Max, Email, Pattern, Custom) and a signup example exercising the full API surface.
117 lines
2.6 KiB
Go
117 lines
2.6 KiB
Go
package via
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestRequired(t *testing.T) {
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r := Required()
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assert.NoError(t, r.validate("hello"))
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assert.Error(t, r.validate(""))
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assert.Error(t, r.validate(" "))
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}
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func TestRequiredCustomMessage(t *testing.T) {
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r := Required("name needed")
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err := r.validate("")
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assert.EqualError(t, err, "name needed")
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}
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func TestMinLen(t *testing.T) {
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r := MinLen(3)
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assert.NoError(t, r.validate("abc"))
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assert.NoError(t, r.validate("abcd"))
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assert.Error(t, r.validate("ab"))
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assert.Error(t, r.validate(""))
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}
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func TestMinLenCustomMessage(t *testing.T) {
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r := MinLen(5, "too short")
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err := r.validate("ab")
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assert.EqualError(t, err, "too short")
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}
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func TestMaxLen(t *testing.T) {
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r := MaxLen(5)
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assert.NoError(t, r.validate("abc"))
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assert.NoError(t, r.validate("abcde"))
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assert.Error(t, r.validate("abcdef"))
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}
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func TestMaxLenCustomMessage(t *testing.T) {
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r := MaxLen(2, "too long")
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err := r.validate("abc")
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assert.EqualError(t, err, "too long")
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}
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func TestMin(t *testing.T) {
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r := Min(5)
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assert.NoError(t, r.validate("5"))
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assert.NoError(t, r.validate("10"))
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assert.Error(t, r.validate("4"))
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assert.Error(t, r.validate("abc"))
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}
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func TestMinCustomMessage(t *testing.T) {
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r := Min(10, "need 10+")
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err := r.validate("3")
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assert.EqualError(t, err, "need 10+")
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}
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func TestMax(t *testing.T) {
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r := Max(10)
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assert.NoError(t, r.validate("10"))
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assert.NoError(t, r.validate("5"))
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assert.Error(t, r.validate("11"))
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assert.Error(t, r.validate("abc"))
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}
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func TestMaxCustomMessage(t *testing.T) {
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r := Max(5, "too big")
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err := r.validate("6")
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assert.EqualError(t, err, "too big")
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}
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func TestPattern(t *testing.T) {
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r := Pattern(`^\d{3}$`)
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assert.NoError(t, r.validate("123"))
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assert.Error(t, r.validate("12"))
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assert.Error(t, r.validate("abcd"))
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}
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func TestPatternCustomMessage(t *testing.T) {
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r := Pattern(`^\d+$`, "digits only")
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err := r.validate("abc")
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assert.EqualError(t, err, "digits only")
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}
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func TestEmail(t *testing.T) {
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r := Email()
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assert.NoError(t, r.validate("user@example.com"))
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assert.NoError(t, r.validate("a.b+c@foo.co"))
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assert.Error(t, r.validate("notanemail"))
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assert.Error(t, r.validate("@example.com"))
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assert.Error(t, r.validate("user@"))
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assert.Error(t, r.validate(""))
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}
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func TestEmailCustomMessage(t *testing.T) {
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r := Email("bad email")
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err := r.validate("nope")
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assert.EqualError(t, err, "bad email")
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}
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func TestCustom(t *testing.T) {
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r := Custom(func(val string) error {
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if val != "magic" {
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return fmt.Errorf("must be magic")
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}
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return nil
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})
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assert.NoError(t, r.validate("magic"))
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assert.EqualError(t, r.validate("other"), "must be magic")
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}
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