rename all remaining packages to internal/ (#12418)

This is to ensure that there are no projects
that try to import `minio/minio/pkg` into
their own repo. Any such common packages should
go to `https://github.com/minio/pkg`

internal/config/storageclass/storage-class_test.go

@@ -0,0 +1,164 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package storageclass
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+)
+
+func TestParseStorageClass(t *testing.T) {
+	tests := []struct {
+		storageClassEnv string
+		wantSc          StorageClass
+		expectedError   error
+	}{
+		{"EC:3", StorageClass{
+			Parity: 3},
+			nil},
+		{"EC:4", StorageClass{
+			Parity: 4},
+			nil},
+		{"AB:4", StorageClass{
+			Parity: 4},
+			errors.New("Unsupported scheme AB. Supported scheme is EC")},
+		{"EC:4:5", StorageClass{
+			Parity: 4},
+			errors.New("Too many sections in EC:4:5")},
+		{"EC:A", StorageClass{
+			Parity: 4},
+			errors.New(`strconv.Atoi: parsing "A": invalid syntax`)},
+		{"AB", StorageClass{
+			Parity: 4},
+			errors.New("Too few sections in AB")},
+	}
+	for i, tt := range tests {
+		gotSc, err := parseStorageClass(tt.storageClassEnv)
+		if err != nil && tt.expectedError == nil {
+			t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
+			return
+		}
+		if err == nil && tt.expectedError != nil {
+			t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
+			return
+		}
+		if tt.expectedError == nil && !reflect.DeepEqual(gotSc, tt.wantSc) {
+			t.Errorf("Test %d, Expected %v, got %v", i+1, tt.wantSc, gotSc)
+			return
+		}
+		if tt.expectedError != nil && err.Error() != tt.expectedError.Error() {
+			t.Errorf("Test %d, Expected `%v`, got `%v`", i+1, tt.expectedError, err)
+		}
+	}
+}
+
+func TestValidateParity(t *testing.T) {
+	tests := []struct {
+		rrsParity     int
+		ssParity      int
+		success       bool
+		setDriveCount int
+	}{
+		{2, 4, true, 16},
+		{3, 3, true, 16},
+		{0, 0, true, 16},
+		{1, 4, false, 16},
+		{7, 6, false, 16},
+		{9, 0, false, 16},
+		{9, 9, false, 16},
+		{2, 9, false, 16},
+		{9, 2, false, 16},
+	}
+	for i, tt := range tests {
+		err := validateParity(tt.ssParity, tt.rrsParity, tt.setDriveCount)
+		if err != nil && tt.success {
+			t.Errorf("Test %d, Expected success, got %s", i+1, err)
+		}
+		if err == nil && !tt.success {
+			t.Errorf("Test %d, Expected failure, got success", i+1)
+		}
+	}
+}
+
+func TestParityCount(t *testing.T) {
+	tests := []struct {
+		sc             string
+		disksCount     int
+		expectedData   int
+		expectedParity int
+	}{
+		{RRS, 16, 14, 2},
+		{STANDARD, 16, 8, 8},
+		{"", 16, 8, 8},
+		{RRS, 16, 9, 7},
+		{STANDARD, 16, 10, 6},
+		{"", 16, 9, 7},
+	}
+	for i, tt := range tests {
+		scfg := Config{
+			Standard: StorageClass{
+				Parity: 8,
+			},
+			RRS: StorageClass{
+				Parity: 0,
+			},
+		}
+		// Set env var for test case 4
+		if i+1 == 4 {
+			scfg.RRS.Parity = 7
+		}
+		// Set env var for test case 5
+		if i+1 == 5 {
+			scfg.Standard.Parity = 6
+		}
+		// Set env var for test case 6
+		if i+1 == 6 {
+			scfg.Standard.Parity = 7
+		}
+		parity := scfg.GetParityForSC(tt.sc)
+		if (tt.disksCount - parity) != tt.expectedData {
+			t.Errorf("Test %d, Expected data disks %d, got %d", i+1, tt.expectedData, tt.disksCount-parity)
+			continue
+		}
+		if parity != tt.expectedParity {
+			t.Errorf("Test %d, Expected parity disks %d, got %d", i+1, tt.expectedParity, parity)
+		}
+	}
+}
+
+// Test IsValid method with valid and invalid inputs
+func TestIsValidStorageClassKind(t *testing.T) {
+	tests := []struct {
+		sc   string
+		want bool
+	}{
+		{"STANDARD", true},
+		{"REDUCED_REDUNDANCY", true},
+		{"", false},
+		{"INVALID", false},
+		{"123", false},
+		{"MINIO_STORAGE_CLASS_RRS", false},
+		{"MINIO_STORAGE_CLASS_STANDARD", false},
+	}
+	for i, tt := range tests {
+		if got := IsValid(tt.sc); got != tt.want {
+			t.Errorf("Test %d, Expected Storage Class to be %t, got %t", i+1, tt.want, got)
+		}
+	}
+}