Add package semver

Signed-off-by: Jan Tytgat <jan.tytgat@corelayer.eu>

pkg/semver/metadata_test.go

@@ -0,0 +1,37 @@
+package semver
+
+import "testing"
+
+var validMetadataTests = []struct {
+	name     string
+	metadata Metadata
+	commit   string
+	date     string
+	err      bool
+}{
+	{
+		name:     "simple",
+		metadata: "metadata.20101112",
+		commit:   "metadata",
+		date:     "20101112",
+		err:      false,
+	},
+}
+
+func TestSplitMetadata(t *testing.T) {
+	for _, tt := range validMetadataTests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, got1, err := SplitMetadata(tt.metadata)
+			if (err != nil) != tt.err {
+				t.Errorf("SplitMetadata() error = %v, wantErr %v", err, tt.err)
+				return
+			}
+			if got != tt.commit {
+				t.Errorf("SplitMetadata() got = %v, want %v", got, tt.commit)
+			}
+			if got1 != tt.date {
+				t.Errorf("SplitMetadata() got1 = %v, want %v", got1, tt.date)
+			}
+		})
+	}
+}