public void WriteStartFrom_WhenSelectStatement_WritesWhere()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("Id");
writer.WriteColumn("Name", "n");
writer.WriteColumn("Users", "Email", "e");
writer.WriteStartFrom();
writer.WriteTable("Users");
writer.WriteStartWhere();
Assert.AreEqual(SqlWriterState.StartWhere, writer.WriteState);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Id");
writer.WriteOperator(SqlBinaryOperator.Or);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.LessThan);
writer.WriteValue(100);
}
Assert.AreEqual("SELECT [Id], [Name] AS [n], [Users].[Email] AS [e] FROM [Users] WHERE ([Id] = @Id) OR ([Id] < 100)", builder.ToString());
}
public void WriteStartSet_WhenUpdateStatement_WritesParametersAndValues()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartUpdate();
writer.WriteTable("Users");
writer.WriteStartSet();
writer.WriteColumn("Id");
writer.WriteValue(15);
writer.WriteColumn("UserName");
writer.WriteParameter("UserName");
writer.WriteColumn("Email");
writer.WriteParameter("Email");
Assert.AreEqual(SqlWriterState.Set, writer.WriteState);
}
Assert.AreEqual("UPDATE [Users] SET [Id] = 15, [UserName] = @UserName, [Email] = @Email", builder.ToString());
}
public void WriteStartSet_WhenUpdateStatement_WritesParametersAndValues()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartUpdate();
writer.WriteTable("Users");
writer.WriteStartSet();
writer.WriteColumn("Id");
writer.WriteValue(15);
writer.WriteColumn("UserName");
writer.WriteParameter("UserName");
writer.WriteColumn("Email");
writer.WriteParameter("Email");
Assert.AreEqual(SqlWriterState.Set, writer.WriteState);
}
Assert.AreEqual("UPDATE [Users] SET [Id] = 15, [UserName] = @UserName, [Email] = @Email", builder.ToString());
}
public void WriteStartOn_WritesOnClause()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("Id");
writer.WriteColumn("Name", "n");
writer.WriteColumn("Users", "Email", "e");
writer.WriteStartFrom();
writer.WriteTable("Users");
writer.WriteStartJoin();
writer.WriteTable("Profiles");
writer.WriteStartOn();
writer.WriteColumn("Users", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("Profiles", "UserId", null);
writer.WriteOperator(SqlBinaryOperator.And);
writer.WriteColumn("Users", "Name", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Name");
writer.WriteStartWhere();
Assert.AreEqual(SqlWriterState.StartWhere, writer.WriteState);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Id");
writer.WriteOperator(SqlBinaryOperator.Or);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.LessThan);
writer.WriteValue(100);
writer.WriteStartOrderBy();
writer.WriteColumn("Id");
writer.WriteSortOrder(SqlSortOrder.Ascending);
writer.WriteColumn("Name");
writer.WriteSortOrder(SqlSortOrder.Descending);
}
Assert.AreEqual("SELECT [Id], [Name] AS [n], [Users].[Email] AS [e] FROM [Users] JOIN [Profiles] ON ([Users].[Id] = [Profiles].[UserId]) AND ([Users].[Name] = @Name) WHERE ([Id] = @Id) OR ([Id] < 100) ORDER BY [Id] ASC, [Name] DESC", builder.ToString());
}
public void WriteParameter_WhenInsertStatement_WritesParameters()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartInsert();
writer.WriteStartInto();
writer.WriteTable("Users");
writer.WriteColumn("Id");
writer.WriteColumn("UserName");
writer.WriteColumn("Email");
writer.WriteStartValues();
Assert.AreEqual(SqlWriterState.StartValues, writer.WriteState);
writer.WriteParameter("Id");
writer.WriteParameter("UserName");
writer.WriteParameter("Email");
writer.WriteEndValues();
Assert.AreEqual(SqlWriterState.EndValues, writer.WriteState);
}
Assert.AreEqual("INSERT INTO [Users] ([Id], [UserName], [Email]) VALUES (@Id, @UserName, @Email)", builder.ToString());
}
public void WriteParameter_WhenInsertStatement_WritesParameters()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartInsert();
writer.WriteStartInto();
writer.WriteTable("Users");
writer.WriteColumn("Id");
writer.WriteColumn("UserName");
writer.WriteColumn("Email");
writer.WriteStartValues();
Assert.AreEqual(SqlWriterState.StartValues, writer.WriteState);
writer.WriteParameter("Id");
writer.WriteParameter("UserName");
writer.WriteParameter("Email");
writer.WriteEndValues();
Assert.AreEqual(SqlWriterState.EndValues, writer.WriteState);
}
Assert.AreEqual("INSERT INTO [Users] ([Id], [UserName], [Email]) VALUES (@Id, @UserName, @Email)", builder.ToString());
}
public void WriteStartFrom_WhenSelectStatement_WritesWhere()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("Id");
writer.WriteColumn("Name", "n");
writer.WriteColumn("Users", "Email", "e");
writer.WriteStartFrom();
writer.WriteTable("Users");
writer.WriteStartWhere();
Assert.AreEqual(SqlWriterState.StartWhere, writer.WriteState);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Id");
writer.WriteOperator(SqlBinaryOperator.Or);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.LessThan);
writer.WriteValue(100);
}
Assert.AreEqual("SELECT [Id], [Name] AS [n], [Users].[Email] AS [e] FROM [Users] WHERE ([Id] = @Id) OR ([Id] < 100)", builder.ToString());
}
public void WriteStartOn_WritesOnClause()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("Id");
writer.WriteColumn("Name", "n");
writer.WriteColumn("Users", "Email", "e");
writer.WriteStartFrom();
writer.WriteTable("Users");
writer.WriteStartJoin();
writer.WriteTable("Profiles");
writer.WriteStartOn();
writer.WriteColumn("Users", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("Profiles", "UserId", null);
writer.WriteOperator(SqlBinaryOperator.And);
writer.WriteColumn("Users", "Name", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Name");
writer.WriteStartWhere();
Assert.AreEqual(SqlWriterState.StartWhere, writer.WriteState);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteParameter("Id");
writer.WriteOperator(SqlBinaryOperator.Or);
writer.WriteColumn("Id");
writer.WriteOperator(SqlBinaryOperator.LessThan);
writer.WriteValue(100);
writer.WriteStartOrderBy();
writer.WriteColumn("Id");
writer.WriteSortOrder(SqlSortOrder.Ascending);
writer.WriteColumn("Name");
writer.WriteSortOrder(SqlSortOrder.Descending);
}
Assert.AreEqual("SELECT [Id], [Name] AS [n], [Users].[Email] AS [e] FROM [Users] JOIN [Profiles] ON ([Users].[Id] = [Profiles].[UserId]) AND ([Users].[Name] = @Name) WHERE ([Id] = @Id) OR ([Id] < 100) ORDER BY [Id] ASC, [Name] DESC", builder.ToString());
}
public override void Visit(SqlParameter expression)
{
_writer.WriteParameter(expression.ParameterName);
ParameterVisited?.Invoke(expression);
}
