server: Move all the top level files into cmd folder. (#2490)

This change brings a change which was done for the 'mc'
package to allow for clean repo and have a cleaner
github drop in experience.

cmd/strconv-bytes_test.go

@@ -0,0 +1,112 @@
+/*
+ * 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")
+	}
+}