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sum_test.go
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sum_test.go
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package cmd_test
import (
"bytes"
"fmt"
"github.com/spf13/afero"
"strings"
"testing"
"github.com/mpppk/cli-template/cmd"
)
func TestSum(t *testing.T) {
cases := []struct {
command string
want string
}{
{command: "sum -- -1 2", want: "1\n"},
{command: "sum --norm -- -1 2", want: "3\n"},
}
for _, c := range cases {
buf := new(bytes.Buffer)
rootCmd, err := cmd.NewRootCmd(afero.NewMemMapFs())
if err != nil {
t.Errorf("failed to create rootCmd: %s", err)
}
rootCmd.SetOut(buf)
cmdArgs := strings.Split(c.command, " ")
rootCmd.SetArgs(cmdArgs)
if err := rootCmd.Execute(); err != nil {
t.Errorf("failed to execute rootCmd: %s", err)
}
get := buf.String()
if c.want != get {
t.Errorf("unexpected response: want:%q, get:%q", c.want, get)
}
}
}
func TestSumWithOutFile(t *testing.T) {
testFilePath := "test.txt"
cases := []struct {
command string
want string
}{
{command: fmt.Sprintf("sum --out %s -- -1 2", testFilePath), want: "1"},
}
for _, c := range cases {
fs := afero.NewMemMapFs()
rootCmd, err := cmd.NewRootCmd(fs)
if err != nil {
t.Errorf("failed to create rootCmd: %s", err)
}
cmdArgs := strings.Split(c.command, " ")
rootCmd.SetArgs(cmdArgs)
if err := rootCmd.Execute(); err != nil {
t.Errorf("failed to execute rootCmd: %s", err)
}
byteContents, err := afero.ReadFile(fs, testFilePath)
if err != nil {
t.Fatal(err)
}
get := string(byteContents)
if c.want != get {
t.Errorf("unexpected response: want:%q, get:%q", c.want, get)
}
}
}