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