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template_test.go
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template_test.go
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package jsont
import (
"github.com/stretchr/testify/require"
"testing"
)
func TestTemplate(t *testing.T) {
jt, err := NewTemplate(`{"foo":?,"bar":?,"baz":"??","qux":?}`)
require.NoError(t, err)
require.NotNil(t, jt)
require.Equal(t, 3, (jt.(*jsonTemplate)).argsCount)
require.Equal(t, 3, jt.ExpectedArgs())
str, err := jt.String("aaa", "bbb", 1.2)
require.NoError(t, err)
require.Equal(t, `{"foo":"aaa","bar":"bbb","baz":"?","qux":1.2}`, str)
data, err := jt.Data("aaa", "bbb", 1.2)
require.NoError(t, err)
require.Equal(t, len(str), len(data))
}
func TestNewTemplateCreateErrors(t *testing.T) {
_, err := NewTemplate(`{`, OptionChecked)
require.Error(t, err)
_, err = NewTemplate(`{?}`, OptionChecked)
require.Error(t, err)
}
func TestMustCompileTemplate(t *testing.T) {
jt := MustCompileTemplate(`{"foo":?}`)
require.NotNil(t, jt)
require.Equal(t, 3, len((jt.(*jsonTemplate)).tokens))
}
func TestMustCompileTemplatePanics(t *testing.T) {
const str = `{?}`
_, err := NewTemplate(str, OptionChecked)
require.Error(t, err)
require.Panics(t, func() {
MustCompileTemplate(str, OptionChecked)
})
}
func TestTemplateErrors(t *testing.T) {
jt, err := NewTemplate(`{"foo":?,"bar":?,"baz":"??","qux":?}`)
require.NoError(t, err)
_, err = jt.Data()
require.Error(t, err)
require.Equal(t, "expected 3 args but supplied 0 args", err.Error())
_, err = jt.Data("a", true, "b", "too many")
require.Error(t, err)
require.Equal(t, "expected 3 args but supplied 4 args", err.Error())
_, err = jt.String()
require.Error(t, err)
require.Equal(t, "expected 3 args but supplied 0 args", err.Error())
_, err = jt.String("a", true, "b", "too many")
require.Error(t, err)
require.Equal(t, "expected 3 args but supplied 4 args", err.Error())
}
func TestTemplateErrorsWithUnmarshallable(t *testing.T) {
jt, err := NewTemplate(`{"foo":?}`)
require.NoError(t, err)
str, err := jt.String(nil)
require.NoError(t, err)
require.Equal(t, `{"foo":null}`, str)
_, err = jt.String(func() {})
require.Error(t, err)
_, err = jt.Data(func() {})
require.Error(t, err)
}
func TestTemplateNonStrict(t *testing.T) {
jt, err := NewTemplate(`{"foo":?,"bar":?,"baz":"??","qux":?}`, OptionNonStrict)
require.NoError(t, err)
str, err := jt.String(1.1)
require.NoError(t, err)
require.Equal(t, `{"foo":1.1,"bar":null,"baz":"?","qux":null}`, str)
data, err := jt.Data(1.1)
require.NoError(t, err)
require.Equal(t, str, string(data[:]))
}
func TestTemplate_NewWith(t *testing.T) {
org, err := NewTemplate(`{"foo":?,"bar":?,"baz":"??","qux":?}`)
require.NoError(t, err)
require.NotNil(t, org)
require.Equal(t, 7, len((org.(*jsonTemplate)).tokens))
jt, err := org.NewWith("aaa", "bbb")
require.NoError(t, err)
require.NotNil(t, jt)
require.Equal(t, 3, len((jt.(*jsonTemplate)).tokens))
require.Equal(t, 1, jt.ExpectedArgs())
str, err := jt.String("ccc")
require.NoError(t, err)
require.Equal(t, `{"foo":"aaa","bar":"bbb","baz":"?","qux":"ccc"}`, str)
jt, err = org.NewWith("aaa", "bbb", "ddd")
require.NoError(t, err)
require.NotNil(t, jt)
require.Equal(t, 1, len((jt.(*jsonTemplate)).tokens))
require.Equal(t, 0, jt.ExpectedArgs())
str, err = jt.String()
require.NoError(t, err)
require.Equal(t, `{"foo":"aaa","bar":"bbb","baz":"?","qux":"ddd"}`, str)
_, err = org.NewWith("aaa", "bbb", "ccc", "too many")
require.Error(t, err)
require.Equal(t, "too many args supplied (4) - expected maximum of 3", err.Error())
_, err = org.NewWith(func() {})
require.Error(t, err)
}
func TestTemplate_Options(t *testing.T) {
jt, err := NewTemplate(`{"foo":?,"bar":?,"baz":"??","qux":?}`)
require.NoError(t, err)
require.NotNil(t, jt)
require.True(t, (jt.(*jsonTemplate)).strict)
jt.Options(OptionNonStrict)
require.False(t, (jt.(*jsonTemplate)).strict)
}