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package command_test
import (
"testing"
"hakurei.app/command"
)
func TestBuild(t *testing.T) {
t.Parallel()
c := command.New(nil, nil, "test", nil)
stubHandler := func([]string) error { panic("unreachable") }
t.Run("nil direct handler", func(t *testing.T) {
defer checkRecover(t, "Command", "invalid handler")
c.Command("name", "usage", nil)
})
t.Run("direct zero length", func(t *testing.T) {
wantPanic := "invalid subcommand"
t.Run("zero length name", func(t *testing.T) { defer checkRecover(t, "Command", wantPanic); c.Command("", "usage", stubHandler) })
t.Run("zero length usage", func(t *testing.T) { defer checkRecover(t, "Command", wantPanic); c.Command("name", "", stubHandler) })
})
t.Run("direct adopt unique names", func(t *testing.T) {
c.Command("d0", "usage", stubHandler)
c.Command("d1", "usage", stubHandler)
})
t.Run("direct adopt non-unique name", func(t *testing.T) {
defer checkRecover(t, "Command", "attempted to initialise subcommand with non-unique name")
c.Command("d0", "usage", stubHandler)
})
t.Run("zero length", func(t *testing.T) {
wantPanic := "invalid subcommand tree"
t.Run("zero length name", func(t *testing.T) { defer checkRecover(t, "New", wantPanic); c.New("", "usage") })
t.Run("zero length usage", func(t *testing.T) { defer checkRecover(t, "New", wantPanic); c.New("name", "") })
})
t.Run("direct adopt unique names", func(t *testing.T) {
c.New("t0", "usage")
c.New("t1", "usage")
})
t.Run("direct adopt non-unique name", func(t *testing.T) {
defer checkRecover(t, "Command", "attempted to initialise subcommand tree with non-unique name")
c.New("t0", "usage")
})
}
func checkRecover(t *testing.T, name, wantPanic string) {
if r := recover(); r != wantPanic {
t.Errorf("%s: panic = %v; wantPanic %v",
name, r, wantPanic)
}
}
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