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minio/cmd/strconv-bytes_test.go

113 lines
2.8 KiB

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import "testing"
// Tests various variants in supporting all the byte conversions.
func TestByteConv(t *testing.T) {
// List of all tests for testing notation to corresponding
// byte conversions.
tests := []struct {
in string
exp uint64
}{
// Using IEC notation.
{"42", 42},
{"42MB", 42000000},
{"42MiB", 44040192},
{"42mb", 42000000},
{"42mib", 44040192},
{"42MIB", 44040192},
{"42 MB", 42000000},
{"42 MiB", 44040192},
{"42 mb", 42000000},
{"42 mib", 44040192},
{"42 MIB", 44040192},
{"42.5MB", 42500000},
{"42.5MiB", 44564480},
{"42.5 MB", 42500000},
{"42.5 MiB", 44564480},
// Using SI notation.
{"42M", 42000000},
{"42Mi", 44040192},
{"42m", 42000000},
{"42mi", 44040192},
{"42MI", 44040192},
{"42 M", 42000000},
{"42 Mi", 44040192},
{"42 m", 42000000},
{"42 mi", 44040192},
{"42 MI", 44040192},
// With decimal values.
{"42.5M", 42500000},
{"42.5Mi", 44564480},
{"42.5 M", 42500000},
{"42.5 Mi", 44564480},
// With no more digits after '.'
{"42.M", 42000000},
{"42.Mi", 44040192},
{"42. m", 42000000},
{"42. mi", 44040192},
{"42. M", 42000000},
{"42. Mi", 44040192},
// Large testing, breaks when too much larger than this.
{"12.5 EB", uint64(12.5 * float64(EByte))},
{"12.5 E", uint64(12.5 * float64(EByte))},
{"12.5 EiB", uint64(12.5 * float64(EiByte))},
}
// Tests all notation variants.
for _, p := range tests {
got, err := strconvBytes(p.in)
if err != nil {
t.Errorf("Couldn't parse %v: %v", p.in, err)
}
if got != p.exp {
t.Errorf("Expected %v for %v, got %v", p.exp, p.in, got)
}
}
}
// Validates different types of input errors.
func TestByteErrors(t *testing.T) {
// Input with integer and double space between notations.
got, err := strconvBytes("84 JB")
if err == nil {
t.Errorf("Expected error, got %v", got)
}
// Empty string.
got, err = strconvBytes("")
if err == nil {
t.Errorf("Expected error parsing nothing")
}
// Too large.
got, err = strconvBytes("16 EiB")
if err == nil {
t.Errorf("Expected error, got %v", got)
}
}
// Add benchmarks here.
// Benchmarks for bytes converter.
func BenchmarkParseBytes(b *testing.B) {
for i := 0; i < b.N; i++ {
strconvBytes("16.5 GB")
}
}