Adding the challenge 0204

0204/row_test.go

@@ -0,0 +1,38 @@
+package db0204
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRowEncode(t *testing.T) {
+	schema := &Schema{
+		Table: "link",
+		Cols: []Column{
+			{Name: "time", Type: TypeI64},
+			{Name: "src", Type: TypeStr},
+			{Name: "dst", Type: TypeStr},
+		},
+		PKey: []int{1, 2}, // (src, dst)
+	}
+
+	row := Row{
+		Cell{Type: TypeI64, I64: 123},
+		Cell{Type: TypeStr, Str: []byte("a")},
+		Cell{Type: TypeStr, Str: []byte("b")},
+	}
+	key := []byte{'l', 'i', 'n', 'k', 0, 1, 0, 0, 0, 'a', 1, 0, 0, 0, 'b'}
+	val := []byte{123, 0, 0, 0, 0, 0, 0, 0}
+	assert.Equal(t, key, row.EncodeKey(schema))
+	assert.Equal(t, val, row.EncodeVal(schema))
+
+	decoded := schema.NewRow()
+	err := decoded.DecodeKey(schema, key)
+	assert.Nil(t, err)
+	err = decoded.DecodeVal(schema, val)
+	assert.Nil(t, err)
+	assert.Equal(t, row, decoded)
+}
+
+// QzBQWVJJOUhU https://trialofcode.org/