fixed the issue with decimal comma parsing, tests added

component/util/parse.go

@@ -8,6 +8,7 @@ import (
 func ParseFloat(input string) (float64, error) {
 
 	clean := strings.TrimSpace(input)
+	clean = strings.Replace(clean, ",", ".", -1) // replace decimal comma with decimal point
 
 	if strings.Contains(clean, "\n") {
 		lastIndex := strings.LastIndex(clean, "\n")

component/util/parse_test.go

@@ -13,6 +13,8 @@ func TestParseFloat(t *testing.T) {
 		wantErr bool
 	}{
 		{"should parse a regular number", args{"123"}, 123, false},
+		{"should parse a float with decimal point", args{"123.456"}, 123.456, false},
+		{"should parse a float with decimal comma", args{"123,456"}, 123.456, false},
 		{"should parse a regular number with spaces, tabs and line breaks", args{"         \t 123 \t \n    "}, 123, false},
 		{"should parse a last line in the given string", args{"123\n456"}, 456, false},
 	}

metadata/storage_test.go

@@ -0,0 +1,65 @@
+package metadata
+
+import (
+	"bytes"
+	"gopkg.in/yaml.v3"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+type f struct {
+	a int
+}
+
+func Test_fileExists(t *testing.T) {
+
+	_, _ = os.Create(getPlatformStoragePath("exists"))
+	defer os.Remove(getPlatformStoragePath("exists"))
+
+	type args struct {
+		filename string
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{"should verify that file does not exist", args{"does-not-exist"}, false},
+		{"should verify that file exists", args{"exists"}, true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := fileExists(tt.args.filename); got != tt.want {
+				t.Errorf("fileExists() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_saveStorageFile(t *testing.T) {
+
+	file, _ := yaml.Marshal(f{a: 1})
+	name := "test"
+
+	saveStorageFile(file, name)
+
+	read, _ := ioutil.ReadFile(getPlatformStoragePath(name))
+
+	if !bytes.Equal(file, read) {
+		t.Errorf("read file != saved file")
+	}
+}
+
+func Test_readStorageFile(t *testing.T) {
+
+	file, _ := yaml.Marshal(f{a: 1})
+	name := "test"
+
+	_ = ioutil.WriteFile(getPlatformStoragePath(name), file, os.ModePerm)
+	read := readStorageFile(getPlatformStoragePath(name))
+
+	if !bytes.Equal(file, read) {
+		t.Errorf("read file != saved file")
+	}
+}