Unification of label filter across list/prune endpoints

Signed-off-by: Jakub Guzik <jakubmguzik@gmail.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/pkg/util/filters_test.go b/pkg/util/filters_test.go
new file mode 100644
index 000000000..4771f682b
--- /dev/null
+++ b/pkg/util/filters_test.go
@@ -0,0 +1,77 @@
+package util
+
+import "testing"
+
+func TestMatchLabelFilters(t *testing.T) {
+	testLabels := map[string]string{
+		"label1": "",
+		"label2": "test",
+		"label3": "",
+	}
+	type args struct {
+		filterValues []string
+		labels       map[string]string
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "Match when all filters the same as labels",
+			args: args{
+				filterValues: []string{"label1", "label3", "label2=test"},
+				labels:       testLabels,
+			},
+			want: true,
+		},
+		{
+			name: "Match when filter value not provided in args",
+			args: args{
+				filterValues: []string{"label2"},
+				labels:       testLabels,
+			},
+			want: true,
+		},
+		{
+			name: "Match when no filter value is given",
+			args: args{
+				filterValues: []string{"label2="},
+				labels:       testLabels,
+			},
+			want: true,
+		},
+		{
+			name: "Do not match when filter value differs",
+			args: args{
+				filterValues: []string{"label2=differs"},
+				labels:       testLabels,
+			},
+			want: false,
+		},
+		{
+			name: "Do not match when filter value not listed in labels",
+			args: args{
+				filterValues: []string{"label1=xyz"},
+				labels:       testLabels,
+			},
+			want: false,
+		},
+		{
+			name: "Do not match when one from many not ok",
+			args: args{
+				filterValues: []string{"label1=xyz", "invalid=valid"},
+				labels:       testLabels,
+			},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			if got := MatchLabelFilters(tt.args.filterValues, tt.args.labels); got != tt.want {
+				t.Errorf("MatchLabelFilters() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}