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|
package ff_test
import (
"io"
"testing"
"time"
"github.com/peterbourgon/ff/v3"
"github.com/peterbourgon/ff/v3/fftest"
)
func TestJSONParser(t *testing.T) {
t.Parallel()
for _, testcase := range []struct {
name string
args []string
file string
want fftest.Vars
}{
{
name: "empty input",
args: []string{},
file: "testdata/empty.json",
want: fftest.Vars{},
},
{
name: "basic KV pairs",
args: []string{},
file: "testdata/basic.json",
want: fftest.Vars{S: "s", I: 10, B: true, D: 5 * time.Second},
},
{
name: "value arrays",
args: []string{},
file: "testdata/value_arrays.json",
want: fftest.Vars{S: "bb", I: 12, B: true, D: 5 * time.Second, X: []string{"a", "B", "👍"}},
},
{
name: "bad JSON file",
args: []string{},
file: "testdata/bad.json",
want: fftest.Vars{WantParseErrorIs: io.ErrUnexpectedEOF},
},
} {
t.Run(testcase.name, func(t *testing.T) {
fs, vars := fftest.Pair()
vars.ParseError = ff.Parse(fs, testcase.args,
ff.WithConfigFile(testcase.file),
ff.WithConfigFileParser(ff.JSONParser),
)
fftest.Compare(t, &testcase.want, vars)
})
}
}
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