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/xl-v1-utils_test.go

@@ -0,0 +1,95 @@
+/*
+ * Minio Cloud Storage, (C) 2015, 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 (
+	"reflect"
+	"testing"
+)
+
+// Test for reduceErrs, reduceErr reduces collection
+// of errors into a single maximal error with in the list.
+func TestReduceErrs(t *testing.T) {
+	// List all of all test cases to validate various cases of reduce errors.
+	testCases := []struct {
+		errs        []error
+		ignoredErrs []error
+		err         error
+	}{
+		// Validate if have reduced properly.
+		{[]error{
+			errDiskNotFound,
+			errDiskNotFound,
+			errDiskFull,
+		}, []error{}, errDiskNotFound},
+		// Validate if have no consensus.
+		{[]error{
+			errDiskFull,
+			errDiskNotFound,
+			nil, nil,
+		}, []error{}, nil},
+		// Validate if have consensus and errors ignored.
+		{[]error{
+			errVolumeNotFound,
+			errVolumeNotFound,
+			errVolumeNotFound,
+			errDiskNotFound,
+			errDiskNotFound,
+		}, []error{errDiskNotFound}, errVolumeNotFound},
+		{[]error{}, []error{}, nil},
+	}
+	// Validates list of all the testcases for returning valid errors.
+	for i, testCase := range testCases {
+		gotErr := reduceErrs(testCase.errs, testCase.ignoredErrs)
+		if testCase.err != gotErr {
+			t.Errorf("Test %d : expected %s, got %s", i+1, testCase.err, gotErr)
+		}
+	}
+}
+
+// TestHashOrder - test order of ints in array
+func TestHashOrder(t *testing.T) {
+	testCases := []struct {
+		objectName  string
+		hashedOrder []int
+	}{
+		// cases which should pass the test.
+		// passing in valid object name.
+		{"object", []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
+		{"The Shining Script <v1>.pdf", []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}},
+		{"Cost Benefit Analysis (2009-2010).pptx", []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
+		{"117Gn8rfHL2ACARPAhaFd0AGzic9pUbIA/5OCn5A", []int{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2}},
+		{"SHØRT", []int{11, 12, 13, 14, 15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}},
+		{"There are far too many object names, and far too few bucket names!", []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
+		{"a/b/c/", []int{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2}},
+		{"/a/b/c", []int{7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2, 3, 4, 5, 6}},
+		{string([]byte{0xff, 0xfe, 0xfd}), []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
+	}
+
+	// Tests hashing order to be consistent.
+	for i, testCase := range testCases {
+		hashedOrder := hashOrder(testCase.objectName, 16)
+		if !reflect.DeepEqual(testCase.hashedOrder, hashedOrder) {
+			t.Errorf("Test case %d: Expected \"%#v\" but failed \"%#v\"", i+1, testCase.hashedOrder, hashedOrder)
+		}
+	}
+
+	// Tests hashing order to fail for when order is '-1'.
+	if hashedOrder := hashOrder("This will fail", -1); hashedOrder != nil {
+		t.Errorf("Test: Expect \"nil\" but failed \"%#v\"", hashedOrder)
+	}
+}