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|
package positionalpredictor
import (
"strings"
"testing"
"unicode"
"github.com/posener/complete"
"github.com/stretchr/testify/assert"
)
func TestPositionalPredictor_position(t *testing.T) {
posPredictor := &PositionalPredictor{
BoolFlags: []string{"--mybool", "-b"},
ArgFlags: []string{"--myarg", "-a"},
}
for args, want := range map[string]int{
``: 0,
`foo`: 0,
`foo `: 1,
`-b foo `: 1,
`-a foo `: 0,
`-a=omg foo `: 1,
`--myarg omg foo `: 1,
`--myarg=omg foo `: 1,
`foo bar`: 1,
`foo bar `: 2,
} {
t.Run(args, func(t *testing.T) {
got := posPredictor.predictorIndex(newArgs("foo " + args))
assert.Equal(t, want, got)
})
}
}
func TestPositionalPredictor_predictor(t *testing.T) {
predictor1 := complete.PredictSet("1")
predictor2 := complete.PredictSet("2")
posPredictor := &PositionalPredictor{
Predictors: []complete.Predictor{predictor1, predictor2},
}
for args, want := range map[string]complete.Predictor{
``: predictor1,
`foo`: predictor1,
`foo `: predictor2,
`foo bar`: predictor2,
`foo bar `: nil,
} {
t.Run(args, func(t *testing.T) {
got := posPredictor.predictor(newArgs("app " + args))
assert.Equal(t, want, got)
})
}
}
func TestPositionalPredictor_cumulativepredictor(t *testing.T) {
predictor1 := complete.PredictSet("1")
predictor2 := complete.PredictSet("2")
posPredictor := &PositionalPredictor{
Predictors: []complete.Predictor{predictor1, predictor2},
IsCumulative: true,
}
for args, want := range map[string]complete.Predictor{
``: predictor1,
`foo`: predictor1,
`foo `: predictor2,
`foo bar`: predictor2,
`foo bar `: predictor2,
`foo bar baz `: predictor2,
} {
t.Run(args, func(t *testing.T) {
got := posPredictor.predictor(newArgs("app " + args))
assert.Equal(t, want, got)
})
}
}
// The code below is taken from https://github.com/posener/complete/blob/f6dd29e97e24f8cb51a8d4050781ce2b238776a4/args.go
// to assist in tests.
func newArgs(line string) complete.Args {
var (
all []string
completed []string
)
parts := splitFields(line)
if len(parts) > 0 {
all = parts[1:]
completed = removeLast(parts[1:])
}
return complete.Args{
All: all,
Completed: completed,
Last: last(parts),
LastCompleted: last(completed),
}
}
// splitFields returns a list of fields from the given command line.
// If the last character is space, it appends an empty field in the end
// indicating that the field before it was completed.
// If the last field is of the form "a=b", it splits it to two fields: "a", "b",
// So it can be completed.
func splitFields(line string) []string {
parts := strings.Fields(line)
// Add empty field if the last field was completed.
if len(line) > 0 && unicode.IsSpace(rune(line[len(line)-1])) {
parts = append(parts, "")
}
// Treat the last field if it is of the form "a=b"
parts = splitLastEqual(parts)
return parts
}
func splitLastEqual(line []string) []string {
if len(line) == 0 {
return line
}
parts := strings.Split(line[len(line)-1], "=")
return append(line[:len(line)-1], parts...)
}
func removeLast(a []string) []string {
if len(a) > 0 {
return a[:len(a)-1]
}
return a
}
func last(args []string) string {
if len(args) == 0 {
return ""
}
return args[len(args)-1]
}
|
