diff --git a/common/configFile_test.go b/common/configFile_test.go
new file mode 100644
index 0000000..39f8918
--- /dev/null
+++ b/common/configFile_test.go
@@ -0,0 +1,301 @@
+package common
+
+import (
+	"testing"
+	"time"
+)
+
+func Test_checkTestCase(t *testing.T) {
+	type args struct {
+		testcase *TestCaseConfiguration
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{"No end defined", args{new(TestCaseConfiguration)}, true},
+		{"No weights defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10}}, true},
+		{"No Bucket Numbers defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1}}, true},
+		{"No Object size min defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			}}}, true},
+		{"No Object size max defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin: 1,
+			}}}, true},
+		{"No Object number min defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin: 1,
+				SizeMax: 2,
+			}}}, true},
+		{"No Object size distributions defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:   1,
+				SizeMax:   2,
+				NumberMin: 3,
+			}}}, true},
+		{"No Object number distributions defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:          1,
+				SizeMax:          2,
+				NumberMin:        3,
+				SizeDistribution: "constant",
+			}}}, true},
+		{"No Bucket distribution defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin: 1,
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:            1,
+				SizeMax:            2,
+				NumberMin:          3,
+				SizeDistribution:   "constant",
+				NumberDistribution: "constant",
+			}}}, true},
+		{"No Object Unit defined", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin:          1,
+				NumberDistribution: "constant",
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:            1,
+				SizeMax:            2,
+				NumberMin:          3,
+				SizeDistribution:   "constant",
+				NumberDistribution: "constant",
+			}}}, true},
+		{"Wrong object unit", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin:          1,
+				NumberDistribution: "constant",
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:            1,
+				SizeMax:            2,
+				NumberMin:          3,
+				SizeDistribution:   "constant",
+				NumberDistribution: "constant",
+				Unit:               "XB",
+			}}}, true},
+		{"All good", args{&TestCaseConfiguration{Runtime: time.Second, OpsDeadline: 10, ReadWeight: 1,
+			Buckets: struct {
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+			}{
+				NumberMin:          1,
+				NumberDistribution: "constant",
+			},
+			Objects: struct {
+				SizeMin            uint64 `yaml:"size_min"`
+				SizeMax            uint64 `yaml:"size_max"`
+				PartSize           uint64 `yaml:"part_size"`
+				SizeLast           uint64
+				SizeDistribution   string `yaml:"size_distribution"`
+				NumberMin          uint64 `yaml:"number_min"`
+				NumberMax          uint64 `yaml:"number_max"`
+				NumberLast         uint64
+				NumberDistribution string `yaml:"number_distribution"`
+				Unit               string `yaml:"unit"`
+			}{
+				SizeMin:            1,
+				SizeMax:            2,
+				NumberMin:          3,
+				SizeDistribution:   "constant",
+				NumberDistribution: "constant",
+				Unit:               "KB",
+			}}}, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := checkTestCase(tt.args.testcase); (err != nil) != tt.wantErr {
+				t.Errorf("checkTestCase() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func Test_checkDistribution(t *testing.T) {
+	type args struct {
+		distribution string
+		keyname      string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{"constant distribution", args{"constant", "test"}, false},
+		{"random distribution", args{"random", "test"}, false},
+		{"sequential distribution", args{"sequential", "test"}, false},
+		{"wrong distribution", args{"wrong", "test"}, true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := checkDistribution(tt.args.distribution, tt.args.keyname); (err != nil) != tt.wantErr {
+				t.Errorf("checkDistribution() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestEvaluateDistribution(t *testing.T) {
+	type args struct {
+		min          uint64
+		max          uint64
+		lastNumber   *uint64
+		increment    uint64
+		distribution string
+	}
+	lastArgumentNumber := uint64(1)
+	tests := []struct {
+		name string
+		args args
+		want uint64
+	}{
+		{"constant distribution", args{5, 100, &lastArgumentNumber, 1, "constant"}, 5},
+		{"random distribution", args{1, 2, &lastArgumentNumber, 1, "random"}, 1},
+		{"sequential distribution", args{1, 10, &lastArgumentNumber, 1, "sequential"}, 2},
+		{"last number in sequential distribution", args{1, 10, &lastArgumentNumber, 10, "sequential"}, 10},
+		{"wrong distribution", args{1, 10, &lastArgumentNumber, 1, "wrong"}, 0},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := EvaluateDistribution(tt.args.min, tt.args.max, tt.args.lastNumber, tt.args.increment, tt.args.distribution); got != tt.want {
+				t.Errorf("EvaluateDistribution() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}