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package ff_test
import (
"path/filepath"
"testing"
"time"
"github.com/peterbourgon/ff/v3"
"github.com/peterbourgon/ff/v3/fftest"
)
func TestEnvFileParser(t *testing.T) {
t.Parallel()
for _, testcase := range []struct {
file string
opts []ff.Option
want fftest.Vars
}{
{
file: "testdata/empty.env",
want: fftest.Vars{},
},
{
file: "testdata/basic.env",
want: fftest.Vars{S: "bar", I: 99, B: true, D: time.Hour},
},
{
file: "testdata/prefix.env",
opts: []ff.Option{ff.WithEnvVarPrefix("MYPROG")},
want: fftest.Vars{S: "bingo", I: 123},
},
{
file: "testdata/prefix-undef.env",
opts: []ff.Option{ff.WithEnvVarPrefix("MYPROG"), ff.WithIgnoreUndefined(true)},
want: fftest.Vars{S: "bango", I: 9},
},
{
file: "testdata/quotes.env",
want: fftest.Vars{S: "", I: 32, X: []string{"1", "2 2", "3 3 3"}},
},
{
file: "testdata/no-value.env",
want: fftest.Vars{WantParseErrorString: "invalid line: D="},
},
{
file: "testdata/spaces.env",
want: fftest.Vars{X: []string{"1", "2", "3", "4", "5", " 6", " 7 ", " 8 "}},
},
{
file: "testdata/newlines.env",
want: fftest.Vars{S: "one\ntwo\nthree\n\n", X: []string{`A\nB\n\n`}},
},
{
file: "testdata/capitalization.env",
want: fftest.Vars{S: "hello", I: 12345},
},
} {
t.Run(filepath.Base(testcase.file), func(t *testing.T) {
testcase.opts = append(testcase.opts, ff.WithConfigFile(testcase.file), ff.WithConfigFileParser(ff.EnvParser))
fs, vars := fftest.Pair()
vars.ParseError = ff.Parse(fs, []string{}, testcase.opts...)
fftest.Compare(t, &testcase.want, vars)
})
}
}
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