mirror of
https://github.com/danog/liquid.git
synced 2024-11-26 23:34:47 +01:00
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package render
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"testing"
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"github.com/osteele/liquid/parser"
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"github.com/stretchr/testify/require"
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)
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func addContextTestTags(s Config) {
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s.AddTag("test_evaluate_string", func(string) (func(io.Writer, Context) error, error) {
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return func(w io.Writer, c Context) error {
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v, err := c.EvaluateString(c.TagArgs())
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if err != nil {
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return err
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}
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_, err = fmt.Fprint(w, v)
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return err
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}, nil
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})
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s.AddBlock("parse").Compiler(func(c BlockNode) (func(io.Writer, Context) error, error) {
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a := c.Args
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return func(w io.Writer, c Context) error {
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_, err := io.WriteString(w, a)
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return err
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}, nil
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})
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s.AddTag("test_tag_name", func(string) (func(io.Writer, Context) error, error) {
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return func(w io.Writer, c Context) error {
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_, err := io.WriteString(w, c.TagName())
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return err
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}, nil
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})
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s.AddTag("test_expand_tag_arg", func(string) (func(w io.Writer, c Context) error, error) {
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return func(w io.Writer, c Context) error {
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s, err := c.ExpandTagArg()
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if err != nil {
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return err
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}
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_, err = io.WriteString(w, s)
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return err
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}, nil
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})
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}
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var contextTests = []struct{ in, out string }{
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{`{% parse args %}{% endparse %}`, "args"},
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{`{% test_evaluate_string x %}`, "123"},
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{`{% test_expand_tag_arg x %}`, "x"},
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{`{% test_expand_tag_arg {{x}} %}`, "123"},
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{`{% test_tag_name %}`, "test_tag_name"},
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}
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var contextTestBindings = map[string]interface{}{
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"x": 123,
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}
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func TestContext(t *testing.T) {
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cfg := NewConfig()
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addContextTestTags(cfg)
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for i, test := range contextTests {
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t.Run(fmt.Sprintf("%02d", i+1), func(t *testing.T) {
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root, err := cfg.Compile(test.in, parser.SourceLoc{})
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require.NoErrorf(t, err, test.in)
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buf := new(bytes.Buffer)
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err = Render(root, buf, contextTestBindings, cfg)
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require.NoErrorf(t, err, test.in)
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require.Equalf(t, test.out, buf.String(), test.in)
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})
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}
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}
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var contextErrorTests = []struct{ in, expect string }{
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{`{% test_evaluate_string syntax error %}`, "parse error"},
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{`{% test_expand_tag_arg {{ syntax error }} %}`, "parse error"},
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{`{% test_expand_tag_arg {{ x | undefined_filter }} %}`, "undefined filter"},
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}
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func TestContext_errors(t *testing.T) {
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cfg := NewConfig()
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addContextTestTags(cfg)
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for i, test := range contextErrorTests {
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t.Run(fmt.Sprintf("%02d", i+1), func(t *testing.T) {
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root, err := cfg.Compile(test.in, parser.SourceLoc{})
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require.NoErrorf(t, err, test.in)
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err = Render(root, ioutil.Discard, contextTestBindings, cfg)
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require.Errorf(t, err, test.in)
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require.Containsf(t, err.Error(), test.expect, test.in)
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})
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}
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}
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