initial commit

protocol/text_message_test.go

@@ -0,0 +1,99 @@
+package protocol
+
+import (
+	"fmt"
+	"github.com/go-playground/validator/v10"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestParseTextMessagePDU(t *testing.T) {
+	V = validator.New()
+
+	tests := []struct {
+		name    string
+		packet  string
+		want    *TextMessagePDU
+		wantErr error
+	}{
+		{
+			name:   "Valid message",
+			packet: "#TMJOHN:DOE:Hello, world!\r\n",
+			want: &TextMessagePDU{
+				From:    "JOHN",
+				To:      "DOE",
+				Message: "Hello, world!",
+			},
+			wantErr: nil,
+		},
+		{
+			name:    "Invalid from field",
+			packet:  "#TMJOHN99999:DOE:Hello, world!\r\n",
+			want:    nil,
+			wantErr: NewGenericFSDError(SyntaxError),
+		},
+		{
+			name:    "Invalid to field",
+			packet:  "#TMJOHN:DOE1234567:Hello, world!\r\n",
+			want:    nil,
+			wantErr: NewGenericFSDError(SyntaxError),
+		},
+		{
+			name:    "Missing to field",
+			packet:  "#TMJOHN::Hello, world!\r\n",
+			want:    nil,
+			wantErr: NewGenericFSDError(SyntaxError),
+		},
+		{
+			name:    "Missing message",
+			packet:  "#TMJOHN:DOE:\r\n",
+			want:    nil,
+			wantErr: NewGenericFSDError(SyntaxError),
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			// Perform the parsing
+			result, err := ParseTextMessagePDU(tc.packet)
+
+			// Check the error
+			if tc.wantErr != nil {
+				assert.EqualError(t, err, tc.wantErr.Error())
+			} else {
+				assert.NoError(t, err)
+			}
+
+			// Verify the result
+			assert.Equal(t, tc.want, result)
+		})
+	}
+}
+
+func TestTextMessagePDU_Serialize(t *testing.T) {
+	tests := []struct {
+		name       string
+		textPDU    TextMessagePDU
+		wantOutput string
+	}{
+		{
+			name: "Valid message",
+			textPDU: TextMessagePDU{
+				From:    "ALPHA1",
+				To:      "BRAVO2",
+				Message: "Hello, this is a test message.",
+			},
+			wantOutput: "#TMALPHA1:BRAVO2:Hello, this is a test message.\r\n",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			// Perform serialization
+			output := tc.textPDU.Serialize()
+
+			// Verify the output
+			assert.Equal(t, tc.wantOutput, output, fmt.Sprintf("Test %s: expected serialized output does not match actual output", tc.name))
+		})
+	}
+}