Add minimal tests to fix coverage error

Signed-off-by: mevrin <matthieu.evrin@gmail.com>

mesheryctl/internal/cli/root/pattern/import_test.go

@@ -0,0 +1,43 @@
+package pattern
+
+import (
+	"testing"
+)
+
+func Test_importPattern_DisplayErrorsMissingFlags(t *testing.T) {
+	type args struct {
+		sourceType string
+		file       string
+		patternURL string
+		save       bool
+	}
+
+	tests := []struct {
+		name    string
+		args    args
+		want    error
+		wantErr bool
+	}{
+		{
+			name:    "Import missing source type flag",
+			args:    args{"", "file.yaml", "", false},
+			want:    ErrPatternSourceType(),
+			wantErr: true,
+		},
+		{
+			name:    "Import missing file flag",
+			args:    args{"helm", "", "", false},
+			want:    ErrPatternManifest(),
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := importPattern(tt.args.sourceType, tt.args.file, tt.args.patternURL, tt.args.save)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("importPattern() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+		})
+	}
+}