1 files changed, 149 insertions, 0 deletions
diff --git a/whisper/filter_test.go b/whisper/filter_test.go
new file mode 100644
index 000000000..ac0ebaba7
--- /dev/null
+++ b/whisper/filter_test.go
@@ -0,0 +1,149 @@
+package whisper
+
+import (
+	"bytes"
+
+	"testing"
+)
+
+var filterTopicsCreationTests = []struct {
+	topics [][]string
+	filter [][][4]byte
+}{
+	{ // Simple topic filter
+		topics: [][]string{
+			{"abc", "def", "ghi"},
+			{"def"},
+			{"ghi", "abc"},
+		},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}, {0x34, 0x60, 0x7c, 0x9b}, {0x21, 0x41, 0x7d, 0xf9}},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+			{{0x21, 0x41, 0x7d, 0xf9}, {0x4e, 0x03, 0x65, 0x7a}},
+		},
+	},
+	{ // Wild-carded topic filter
+		topics: [][]string{
+			{"abc", "def", "ghi"},
+			{},
+			{""},
+			{"def"},
+		},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}, {0x34, 0x60, 0x7c, 0x9b}, {0x21, 0x41, 0x7d, 0xf9}},
+			{},
+			{},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+		},
+	},
+}
+
+var filterTopicsCreationFlatTests = []struct {
+	topics []string
+	filter [][][4]byte
+}{
+	{ // Simple topic list
+		topics: []string{"abc", "def", "ghi"},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+			{{0x21, 0x41, 0x7d, 0xf9}},
+		},
+	},
+	{ // Wild-carded topic list
+		topics: []string{"abc", "", "ghi"},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}},
+			{},
+			{{0x21, 0x41, 0x7d, 0xf9}},
+		},
+	},
+}
+
+func TestFilterTopicsCreation(t *testing.T) {
+	// Check full filter creation
+	for i, tt := range filterTopicsCreationTests {
+		// Check the textual creation
+		filter := NewFilterTopicsFromStrings(tt.topics...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+		// Check the binary creation
+		binary := make([][][]byte, len(tt.topics))
+		for j, condition := range tt.topics {
+			binary[j] = make([][]byte, len(condition))
+			for k, segment := range condition {
+				binary[j][k] = []byte(segment)
+			}
+		}
+		filter = NewFilterTopics(binary...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+	}
+	// Check flat filter creation
+	for i, tt := range filterTopicsCreationFlatTests {
+		// Check the textual creation
+		filter := NewFilterTopicsFromStringsFlat(tt.topics...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+		// Check the binary creation
+		binary := make([][]byte, len(tt.topics))
+		for j, topic := range tt.topics {
+			binary[j] = []byte(topic)
+		}
+		filter = NewFilterTopicsFlat(binary...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+	}
+}