public void WriteUnion_WhenSelectWithWhere_WritesUnionStatement()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteStartWhere();
writer.WriteColumn("u", "Age", null);
writer.WriteOperator(SqlBinaryOperator.LessThanOrEqual);
writer.WriteValue(18);
writer.WriteEndSelect();
Assert.AreEqual(SqlWriterState.EndSelect, writer.WriteState);
writer.WriteUnion();
Assert.AreEqual(SqlWriterState.Union, writer.WriteState);
writer.WriteStartSelect();
writer.WriteColumn("p", "Id", null);
writer.WriteColumn("p", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Profiles", "p");
writer.WriteStartWhere();
writer.WriteColumn("p", "Age", null);
writer.WriteOperator(SqlBinaryOperator.GreaterThanOrEqual);
writer.WriteValue(30);
writer.WriteEndSelect();
}
Assert.AreEqual("SELECT [u].[Id], [u].[Name] FROM [Users] [u] WHERE ([u].[Age] <= 18) UNION SELECT [p].[Id], [p].[Name] FROM [Profiles] [p] WHERE ([p].[Age] >= 30)", builder.ToString());
}
public void WriteUnion_WhenSelect_WritesUnionStatement()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteEndSelect();
Assert.AreEqual(SqlWriterState.EndSelect, writer.WriteState);
writer.WriteUnion();
Assert.AreEqual(SqlWriterState.Union, writer.WriteState);
writer.WriteStartSelect();
writer.WriteColumn("p", "Id", null);
writer.WriteColumn("p", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Profiles", "p");
writer.WriteEndSelect();
}
Assert.AreEqual("SELECT [u].[Id], [u].[Name] FROM [Users] [u] UNION SELECT [p].[Id], [p].[Name] FROM [Profiles] [p]", builder.ToString());
}
public void WriteUnion_WhenSelectWithOrderBy_WritesUnionStatement()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteColumn("p", "Age", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteStartJoin(SqlJoinType.Inner);
writer.WriteTable("Profiles", "p");
writer.WriteStartOn();
writer.WriteColumn("u", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("p", "UserId", null);
writer.WriteStartWhere();
writer.WriteColumn("p", "Age", null);
writer.WriteOperator(SqlBinaryOperator.LessThanOrEqual);
writer.WriteValue(18);
writer.WriteStartOrderBy();
writer.WriteColumn("p", "Age", null);
writer.WriteSortOrder(SqlSortOrder.Descending);
writer.WriteColumn("u", "Name", null);
writer.WriteSortOrder(SqlSortOrder.Ascending);
writer.WriteEndSelect();
Assert.AreEqual(SqlWriterState.EndSelect, writer.WriteState);
writer.WriteUnion();
Assert.AreEqual(SqlWriterState.Union, writer.WriteState);
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteColumn("p", "Age", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteStartJoin(SqlJoinType.Inner);
writer.WriteTable("Profiles", "p");
writer.WriteStartOn();
writer.WriteColumn("u", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("p", "UserId", null);
writer.WriteStartWhere();
writer.WriteColumn("p", "Age", null);
writer.WriteOperator(SqlBinaryOperator.GreaterThanOrEqual);
writer.WriteValue(30);
writer.WriteStartOrderBy();
writer.WriteColumn("p", "Age", null);
writer.WriteSortOrder(SqlSortOrder.Descending);
writer.WriteColumn("u", "Name", null);
writer.WriteSortOrder(SqlSortOrder.Ascending);
writer.WriteEndSelect();
}
Assert.AreEqual("SELECT [u].[Id], [u].[Name], [p].[Age] FROM [Users] [u] INNER JOIN [Profiles] [p] ON ([u].[Id] = [p].[UserId]) WHERE ([p].[Age] <= 18) ORDER BY [p].[Age] DESC, [u].[Name] ASC UNION SELECT [u].[Id], [u].[Name], [p].[Age] FROM [Users] [u] INNER JOIN [Profiles] [p] ON ([u].[Id] = [p].[UserId]) WHERE ([p].[Age] >= 30) ORDER BY [p].[Age] DESC, [u].[Name] ASC", builder.ToString());
}
public void WriteUnion_WhenInvalidState_ThrowsInvalidOperation()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartUpdate();
Assert.AreEqual(SqlWriterState.StartUpdate, writer.WriteState);
AssertEx.Throws<InvalidOperationException>(() => writer.WriteUnion());
}
}
public void WriteUnion_WhenInvalidState_ThrowsInvalidOperation()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartUpdate();
Assert.AreEqual(SqlWriterState.StartUpdate, writer.WriteState);
AssertEx.Throws <InvalidOperationException>(() => writer.WriteUnion());
}
}
public void WriteUnion_WhenSelectWithJoin_WritesUnionStatement()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteColumn("p", "Age", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteStartJoin(SqlJoinType.Inner);
writer.WriteTable("Profiles", "p");
writer.WriteStartOn();
writer.WriteColumn("u", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("p", "UserId", null);
//writer.WriteStartWhere();
//writer.WriteColumn("u", "Age", null);
//writer.WriteOperator(SqlBinaryOperator.LessThanOrEqual);
//writer.WriteValue(18);
writer.WriteEndSelect();
Assert.AreEqual(SqlWriterState.EndSelect, writer.WriteState);
writer.WriteUnion();
Assert.AreEqual(SqlWriterState.Union, writer.WriteState);
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteColumn("p", "Age", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteStartJoin(SqlJoinType.Inner);
writer.WriteTable("Profiles", "p");
writer.WriteStartOn();
writer.WriteColumn("u", "Id", null);
writer.WriteOperator(SqlBinaryOperator.Equal);
writer.WriteColumn("p", "UserId", null);
writer.WriteStartWhere();
writer.WriteColumn("p", "Age", null);
writer.WriteOperator(SqlBinaryOperator.GreaterThanOrEqual);
writer.WriteValue(30);
writer.WriteEndSelect();
}
Assert.AreEqual("SELECT [u].[Id], [u].[Name], [p].[Age] FROM [Users] [u] INNER JOIN [Profiles] [p] ON ([u].[Id] = [p].[UserId]) UNION SELECT [u].[Id], [u].[Name], [p].[Age] FROM [Users] [u] INNER JOIN [Profiles] [p] ON ([u].[Id] = [p].[UserId]) WHERE ([p].[Age] >= 30)", builder.ToString());
}
public void WriteUnion_WhenSelect_WritesUnionStatement()
{
StringBuilder builder = new StringBuilder();
using (SqlWriter writer = new SqlWriter(builder))
{
writer.WriteStartSelect();
writer.WriteColumn("u", "Id", null);
writer.WriteColumn("u", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Users", "u");
writer.WriteEndSelect();
Assert.AreEqual(SqlWriterState.EndSelect, writer.WriteState);
writer.WriteUnion();
Assert.AreEqual(SqlWriterState.Union, writer.WriteState);
writer.WriteStartSelect();
writer.WriteColumn("p", "Id", null);
writer.WriteColumn("p", "Name", null);
writer.WriteStartFrom();
writer.WriteTable("Profiles", "p");
writer.WriteEndSelect();
}
Assert.AreEqual("SELECT [u].[Id], [u].[Name] FROM [Users] [u] UNION SELECT [p].[Id], [p].[Name] FROM [Profiles] [p]", builder.ToString());
}
