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https://github.com/yuin/goldmark
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a2b8e64617
When rendering a Node, Renderer looks up the NodeRenderer for that node's kind in a slice. That will panic with an "index out of range" error if a node renderer for that node kind has not been registered. This change verifies that a node renderer is available for that node kind before attempting to use it, and instead of panicking, returns an informative error message.
25 lines
533 B
Go
25 lines
533 B
Go
package renderer
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import (
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"io/ioutil"
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"strings"
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"testing"
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"github.com/yuin/goldmark/parser"
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"github.com/yuin/goldmark/text"
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)
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func TestRenderUnknownNode(t *testing.T) {
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src := []byte("# Foo\n\nHello world")
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node := parser.NewParser().Parse(text.NewReader(src))
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r := NewRenderer()
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err := r.Render(ioutil.Discard, src, node)
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if err == nil {
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t.Fatalf("Render() expected error")
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}
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if !strings.Contains(err.Error(), "unrecognized node kind Document") {
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t.Errorf("Render() failed with unexpected error: %v", err)
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}
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}
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