#73: testcase for DEL command (#302)

tests/del_test.go

@@ -0,0 +1,44 @@
+package tests
+
+import (
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+func TestDel(t *testing.T) {
+	conn := getLocalConnection()
+	defer conn.Close()
+
+	testCases := []struct {
+		name     string
+		commands []string
+		expected []interface{}
+	}{
+		{
+			name:     "DEL with set key",
+			commands: []string{"SET k1 v1", "DEL k1", "GET k1"},
+			expected: []interface{}{"OK", int64(1), "(nil)"},
+		},
+		{
+			name:     "DEL with multiple keys",
+			commands: []string{"SET k1 v1", "SET k2 v2", "DEL k1 k2", "GET k1", "GET k2"},
+			expected: []interface{}{"OK", "OK", int64(2), "(nil)", "(nil)"},
+		},
+		{
+			name:     "DEL with key not set",
+			commands: []string{"GET k3", "DEL k3"},
+			expected: []interface{}{"(nil)", int64(0)},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			deleteTestKeys([]string{"k1", "k2", "k3"})
+			for i, cmd := range tc.commands {
+				result := fireCommand(conn, cmd)
+				assert.Equal(t, tc.expected[i], result, "Value mismatch for cmd %s", cmd)
+			}
+		})
+	}
+}