mirror of
https://github.com/ethereum/go-ethereum.git
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29166f0fc8
## Why this should be merged the `pseudo` package should not be used outside of libevm. Moving it to internal enforces this. ## How this was tested CI
82 lines
2 KiB
Go
82 lines
2 KiB
Go
// Copyright 2024 the libevm authors.
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//
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// The libevm additions to go-ethereum are free software: you can redistribute
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// them and/or modify them under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// The libevm additions are distributed in the hope that they will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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// General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see
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// <http://www.gnu.org/licenses/>.
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package pseudo
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestFormat(t *testing.T) {
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tests := []struct {
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name string
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from any
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format string
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wantContains []string
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}{
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{
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name: "width",
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from: 42,
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format: "%04d",
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wantContains: []string{"int", "0042"},
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},
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{
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name: "precision",
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from: float64(2),
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format: "%.5f",
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wantContains: []string{"float64", "2.00000"},
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},
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{
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name: "flag",
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from: 42,
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format: "%+d",
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wantContains: []string{"int", "+42"},
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},
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{
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name: "verb",
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from: 42,
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format: "%x",
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wantContains: []string{"int", "2a"},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := fmt.Sprintf(tt.format, fromAny(t, tt.from))
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for _, want := range tt.wantContains {
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assert.Containsf(t, got, want, "fmt.Sprintf(%q, From(%T[%[2]v]))", tt.format, tt.from)
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}
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})
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}
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}
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func fromAny(t *testing.T, x any) *Type {
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t.Helper()
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// Without this, the function will be From[any]().
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switch x := x.(type) {
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case int:
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return From(x).Type
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case float64:
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return From(x).Type
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default:
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t.Fatalf("Bad test setup: add type case for %T", x)
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return nil
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}
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}
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