table: introduced table package

It adds support for super simple CRUD operations based on table schema model.

table/table_test.go

@@ -0,0 +1,221 @@
+// Copyright (C) 2017 ScyllaDB
+// Use of this source code is governed by a ALv2-style
+// license that can be found in the LICENSE file.
+
+package table
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestTableGet(t *testing.T) {
+	table := []struct {
+		M Metadata
+		C []string
+		N []string
+		S string
+	}{
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			N: []string{"a", "b"},
+			S: "SELECT * FROM table WHERE a=? AND b=? ",
+		},
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+			},
+			N: []string{"a"},
+			S: "SELECT * FROM table WHERE a=? ",
+		},
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+			},
+			C: []string{"d"},
+			N: []string{"a"},
+			S: "SELECT d FROM table WHERE a=? ",
+		},
+	}
+
+	for _, test := range table {
+		stmt, names := New(test.M).Get(test.C...)
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+}
+
+func TestTableSelect(t *testing.T) {
+	table := []struct {
+		M Metadata
+		C []string
+		N []string
+		S string
+	}{
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			N: []string{"a"},
+			S: "SELECT * FROM table WHERE a=? ",
+		},
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			C: []string{"d"},
+			N: []string{"a"},
+			S: "SELECT d FROM table WHERE a=? ",
+		},
+	}
+
+	for _, test := range table {
+		stmt, names := New(test.M).Select(test.C...)
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+
+	// run SelectBuilder on the same data set
+	for _, test := range table {
+		stmt, names := New(test.M).SelectBuilder(test.C...).ToCql()
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+}
+
+func TestTableInsert(t *testing.T) {
+	table := []struct {
+		M Metadata
+		N []string
+		S string
+	}{
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			N: []string{"a", "b", "c", "d"},
+			S: "INSERT INTO table (a,b,c,d) VALUES (?,?,?,?) ",
+		},
+	}
+
+	for _, test := range table {
+		stmt, names := New(test.M).Insert()
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+}
+
+func TestTableUpdate(t *testing.T) {
+	table := []struct {
+		M Metadata
+		C []string
+		N []string
+		S string
+	}{
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			C: []string{"d"},
+			N: []string{"d", "a", "b"},
+			S: "UPDATE table SET d=? WHERE a=? AND b=? ",
+		},
+	}
+
+	for _, test := range table {
+		stmt, names := New(test.M).Update(test.C...)
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+}
+
+func TestTableDelete(t *testing.T) {
+	table := []struct {
+		M Metadata
+		C []string
+		N []string
+		S string
+	}{
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+				SortKey: []string{"b"},
+			},
+			N: []string{"a", "b"},
+			S: "DELETE FROM table WHERE a=? AND b=? ",
+		},
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+			},
+			N: []string{"a"},
+			S: "DELETE FROM table WHERE a=? ",
+		},
+		{
+			M: Metadata{
+				Name:    "table",
+				Columns: []string{"a", "b", "c", "d"},
+				PartKey: []string{"a"},
+			},
+			C: []string{"d"},
+			N: []string{"a"},
+			S: "DELETE d FROM table WHERE a=? ",
+		},
+	}
+
+	for _, test := range table {
+		stmt, names := New(test.M).Delete(test.C...)
+		if diff := cmp.Diff(test.S, stmt); diff != "" {
+			t.Error(diff)
+		}
+		if diff := cmp.Diff(test.N, names); diff != "" {
+			t.Error(diff, names)
+		}
+	}
+}