84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
)
|
|
|
|
func TestRun(t *testing.T) {
|
|
// Test cases for Run Tests
|
|
testCases := []struct {
|
|
name string
|
|
col int
|
|
op string
|
|
exp string
|
|
files []string
|
|
expErr error
|
|
}{
|
|
{name: "RunAvg1File", col: 3, op: "avg", exp: "227.6\n",
|
|
files: []string{"./testdata/example.csv"},
|
|
expErr: nil,
|
|
},
|
|
{name: "RunAvgMultiFiles", col: 3, op: "avg", exp: "233.84\n",
|
|
files: []string{"./testdata/example.csv", "./testdata/example2.csv"},
|
|
expErr: nil,
|
|
},
|
|
{name: "RunFailRead", col: 2, op: "avg", exp: "",
|
|
files: []string{"./testdata/example.csv", "./testdata/fakefile.csv"},
|
|
expErr: os.ErrNotExist,
|
|
}, {name: "RunFailColumn", col: 0, op: "avg", exp: "",
|
|
files: []string{"./testdata/example.csv"},
|
|
expErr: ErrInvalidColumn,
|
|
},
|
|
{name: "RunFailNoFiles", col: 2, op: "avg", exp: "",
|
|
files: []string{},
|
|
expErr: ErrNoFiles,
|
|
},
|
|
{name: "RunFailOperation", col: 2, op: "invalid", exp: "",
|
|
files: []string{"./testdata/example.csv"},
|
|
expErr: ErrInvalidOperation,
|
|
},
|
|
}
|
|
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
var res bytes.Buffer
|
|
err := run(tc.files, tc.op, tc.col, &res)
|
|
|
|
if tc.expErr != nil {
|
|
if err == nil {
|
|
t.Errorf("Expected error. Got nil instead")
|
|
}
|
|
if !errors.Is(err, tc.expErr) {
|
|
t.Errorf("Expected error %q, got %q instead", tc.expErr, err)
|
|
}
|
|
return
|
|
}
|
|
if err != nil {
|
|
t.Errorf("Unexpected error: %q", err)
|
|
}
|
|
if res.String() != tc.exp {
|
|
t.Errorf("Expected %q, got %q instead", tc.exp, &res)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkRun(b *testing.B) {
|
|
filenames, err := filepath.Glob("./testdata/benchmark/*.csv")
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
// reset the time before running the benchmark loop
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
if err := run(filenames, "max", 2, io.Discard); err != nil {
|
|
b.Error(err)
|
|
}
|
|
}
|
|
}
|