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io_test.go
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io_test.go
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package vals
import (
"bytes"
"strings"
"testing"
)
func Test_InputOutput(t *testing.T) {
baseDocument := `foo:
bar:
- baz
`
tests := []struct {
name string
input string
format string
expected string
}{
{
name: "single document yaml",
input: baseDocument,
format: "yaml",
expected: "foo:\n bar:\n - baz\n",
},
{
name: "multi document yaml",
input: baseDocument + "---\nbar: baz\n",
format: "yaml",
expected: "foo:\n bar:\n - baz\n---\nbar: baz\n",
},
{
name: "single document json",
input: baseDocument,
format: "json",
expected: "{\"foo\":{\"bar\":[\"baz\"]}}\n",
},
{
name: "multi document json",
input: baseDocument + "---\nbar: baz\n",
format: "json",
expected: "{\"foo\":{\"bar\":[\"baz\"]}}\n---\n{\"bar\":\"baz\"}\n",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
nodes, err := nodesFromReader(strings.NewReader(tt.input))
if err != nil {
t.Fatal(err)
}
buf := &bytes.Buffer{}
err = Output(buf, tt.format, nodes)
if err != nil {
t.Fatal(err)
}
if buf.String() != tt.expected {
t.Errorf("Expected %q, got %q", tt.expected, buf.String())
}
nodesRoundTrip, err := nodesFromReader(buf)
if err != nil {
t.Fatal(err)
}
bufRoundTrip := &bytes.Buffer{}
err = Output(bufRoundTrip, "yaml", nodesRoundTrip)
if err != nil {
t.Fatal(err)
}
if bufRoundTrip.String() != tt.input {
t.Errorf("Expected %q, got %q", tt.input, bufRoundTrip.String())
}
})
}
}