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// SPDX-FileCopyrightText: © 2022 Grégoire Duchêne <gduchene@awhk.org>
// SPDX-License-Identifier: ISC
package core_test
import (
"errors"
"sort"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"go.awhk.org/core"
)
func TestMapKeys(s *testing.T) {
t := core.T{T: s}
t.AssertEqual(([]string)(nil), core.MapKeys[map[string]int](nil))
t.AssertEqual(([]string)(nil), core.MapKeys(map[string]int{}))
keys := core.MapKeys(map[string]int{"foo": 1, "bar": 2})
sort.Strings(keys)
t.AssertEqual([]string{"bar", "foo"}, keys)
}
func TestMust(s *testing.T) {
t := core.T{T: s, Options: []cmp.Option{cmpopts.EquateErrors()}}
err := errors.New("some error")
t.AssertPanicsWith(func() { core.Must(42, err) }, err)
t.AssertNotPanics(func() { core.Must(42, nil) })
t.AssertEqual(42, core.Must(42, nil))
}
func TestSliceMap(s *testing.T) {
t := core.T{T: s}
t.AssertEqual(([]int)(nil), core.SliceMap(func(int) int { return 0 }, ([]int)(nil)))
t.AssertEqual(([]int)(nil), core.SliceMap(func(int) int { return 0 }, []int{}))
t.AssertEqual([]int{42, 84}, core.SliceMap(func(x int) int { return x * 2 }, []int{21, 42}))
}
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