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package toolbox_test
import (
"fmt"
"testing"
"errors"
"github.com/stretchr/testify/assert"
"github.com/viant/toolbox"
)
func TestMacroExpansion(t *testing.T) {
valueRegistry := toolbox.NewValueProviderRegistry()
valueRegistry.Register("abc", TestValueProvider{"Called with %v %v!", nil})
valueRegistry.Register("xyz", TestValueProvider{"XXXX", nil})
valueRegistry.Register("klm", TestValueProvider{"Called with %v %v!", errors.New("Test error")})
evaluator := toolbox.MacroEvaluator{ValueProviderRegistry: valueRegistry, Prefix: "<ds:", Postfix: ">"}
{
//simple macro test
actual, err := evaluator.Expand(nil, "<ds:abc[]>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "Called with %v %v!", actual)
}
{
//simple macro test
actual, err := evaluator.Expand(nil, "< <ds:abc[]>> <ds:xyz[]>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "< Called with %v %v!> XXXX", actual)
}
{
//simple macro test
actual, err := evaluator.Expand(nil, "<ds:abc>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "Called with %v %v!", actual)
}
{
//simple macro with arguments
actual, err := evaluator.Expand(nil, "<ds:abc [1, true]>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "Called with 1 true!", actual)
}
{
//simple macro with arguments
actual, err := evaluator.Expand(nil, "<ds:abc [1, true]> <ds:abc [2, false]>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "Called with 1 true! Called with 2 false!", actual)
}
{
//embeded macro with arguments
actual, err := evaluator.Expand(nil, "<ds:abc [1, \"<ds:abc [10,11]>\"]>")
if err != nil {
t.Errorf("failed expand macro %v", err.Error())
}
assert.Equal(t, "Called with 1 Called with 10 11!!", actual)
}
{
//value provider with error
_, err := evaluator.Expand(nil, "<ds:abc [1, \"<ds:klm>\"]>")
assert.NotNil(t, err, "macro argument value provider returns error")
}
{
//value provider with error
_, err := evaluator.Expand(nil, "<ds:klm>")
assert.NotNil(t, err, "value provider returns error")
}
{
//simple macro with arguments
_, err := evaluator.Expand(nil, "<ds:agg>")
assert.NotNil(t, err)
}
{
//value provider with error
_, err := evaluator.Expand(nil, "<ds:pos [\"events\"]>")
assert.NotNil(t, err)
}
}
type TestValueProvider struct {
expandeWith string
err error
}
func (t TestValueProvider) Init() error {
return nil
}
func (t TestValueProvider) Get(context toolbox.Context, arguments ...interface{}) (interface{}, error) {
if len(arguments) > 0 {
return fmt.Sprintf(t.expandeWith, arguments...), t.err
}
return t.expandeWith, t.err
}
func (t TestValueProvider) Destroy() error {
return nil
}
func TestExpandParameters(t *testing.T) {
valueRegistry := toolbox.NewValueProviderRegistry()
valueRegistry.Register("abc", TestValueProvider{"Called with %v %v!", nil})
valueRegistry.Register("klm", TestValueProvider{"Called with %v %v!", errors.New("Test error")})
evaluator := toolbox.MacroEvaluator{ValueProviderRegistry: valueRegistry, Prefix: "<ds:", Postfix: ">"}
{
aMap := map[string]string{
"k1": "!<ds:klm>!",
}
err := toolbox.ExpandParameters(&evaluator, aMap)
assert.NotNil(t, err)
}
{
aMap := map[string]string{
"k1": "!<ds:abc>!",
}
err := toolbox.ExpandParameters(&evaluator, aMap)
assert.Nil(t, err)
assert.Equal(t, "!Called with %v %v!!", aMap["k1"])
}
}
func TestExpandValue(t *testing.T) {
valueRegistry := toolbox.NewValueProviderRegistry()
valueRegistry.Register("abc", TestValueProvider{"Called with %v %v!", nil})
valueRegistry.Register("klm", TestValueProvider{"Called with %v %v!", errors.New("Test error")})
evaluator := toolbox.MacroEvaluator{ValueProviderRegistry: valueRegistry, Prefix: "<ds:", Postfix: ">"}
{
expanded, err := toolbox.ExpandValue(&evaluator, "!<ds:abc>!")
assert.Nil(t, err)
assert.Equal(t, "!Called with %v %v!!", expanded)
}
{
expanded, err := toolbox.ExpandValue(&evaluator, "!!")
assert.Nil(t, err)
assert.Equal(t, "!!", expanded)
}
{
_, err := toolbox.ExpandValue(&evaluator, "<ds:klm>")
assert.NotNil(t, err)
}
}
|
