chore: initial git load of code space

2026-05-12 08:52:33 -05:00
parent 9abada692f
commit 5e467bcc9c
384 changed files with 65960 additions and 2 deletions
@@ -0,0 +1,117 @@
+using Strata.SqlTools.SqlBreakdown.Classes;
+using Strata.SqlTools.SqlBreakdown.Expressions;
+using Strata.SqlTools.SqlBreakdown.Expressions.Functions.Aggregate;
+using Strata.SqlTools.SqlBreakdown.Expressions.Functions.Conditional;
+
+namespace Strata.SqlTools.SqlBreakdown.Tests.ExpressionTests;
+
+[TestFixture]
+public class ConditionalExpressionTests : ExpressionTestsBase
+{
+    private static IEnumerable<TestCaseData> ConditionalExpressionTestCases()
+    {
+        var testCases = new[]
+        {
+            new ExpressionTestCase
+            {
+                Name = "CaseExpression_{m}",
+                Arrange = new Dictionary<string, Expression>(),
+                Act = (columns, visitor) =>
+                {
+                    var table = new RegisteredTableSource(101, "CLIENT_DSS", "DEPT", "PES");
+                    var nameCol = new RegisteredTableColumnExpression(1, "DEPARTMENT_NAME", table);
+                    var revenueCol = new RegisteredTableColumnExpression(2, "NET_REVENUE", table);
+                    var caseExp = new CaseExpression(nameCol == "department 1", revenueCol, 0);
+                    return caseExp.Accept(visitor);
+                },
+                Assertions = result =>
+                {
+                    var sql = (string)result;
+                    Assert.That(sql, Does.Contain("CASE"));
+                    Assert.That(sql, Does.Contain("WHEN"));
+                    Assert.That(sql, Does.Contain("THEN"));
+                    Assert.That(sql, Does.Contain("ELSE"));
+                    Assert.That(sql, Does.Contain("END"));
+                    return true;
+                }
+            },
+            new ExpressionTestCase
+            {
+                Name = "CaseExpressionWithSum_{m}",
+                Arrange = new Dictionary<string, Expression>(),
+                Act = (columns, visitor) =>
+                {
+                    var table = new RegisteredTableSource(101, "CLIENT_DSS", "DEPT", "PES");
+                    var nameCol = new RegisteredTableColumnExpression(1, "DEPARTMENT_NAME", table);
+                    var revenueCol = new RegisteredTableColumnExpression(2, "NET_REVENUE", table);
+                    var caseExp = new CaseExpression(nameCol == "department 1", revenueCol, 0);
+                    var sumCaseExp = new SumFunction(caseExp);
+                    return sumCaseExp.Accept(visitor);
+                },
+                Assertions = result =>
+                {
+                    var sql = (string)result;
+                    Assert.That(sql, Does.Contain("SUM"));
+                    Assert.That(sql, Does.Contain("CASE"));
+                    Assert.That(sql, Does.Contain("WHEN"));
+                    Assert.That(sql, Is.EqualTo("SUM(CASE\n  WHEN PES.DEPARTMENT_NAME = 'department 1' THEN PES.NET_REVENUE\n  ELSE 0\nEND)"));
+                    return true;
+                }
+            },
+            new ExpressionTestCase
+            {
+                Name = "CaseExpressionWithSumInSelectColumn_{m}",
+                Arrange = new Dictionary<string, Expression>(),
+                Act = (columns, visitor) =>
+                {
+                    var table = new RegisteredTableSource(101, "CLIENT_DSS", "DEPT", "PES");
+                    var nameCol = new RegisteredTableColumnExpression(1, "DEPARTMENT_NAME", table);
+                    var revenueCol = new RegisteredTableColumnExpression(2, "NET_REVENUE", table);
+                    var caseExp = new CaseExpression(nameCol == "department 1", revenueCol, 0);
+                    var sumCaseExp = new SumFunction(caseExp);
+                    var column = new SelectClauseColumn(sumCaseExp, "mySumCaseCol");
+                    return column.Accept(visitor);
+                },
+                Assertions = result =>
+                {
+                    var sql = (string)result;
+                    Assert.That(sql, Does.Contain("SUM"));
+                    Assert.That(sql, Does.Contain("CASE"));
+                    Assert.That(sql, Does.Contain("mySumCaseCol"));
+                    Assert.That(sql, Is.EqualTo("SUM(CASE\n  WHEN PES.DEPARTMENT_NAME = 'department 1' THEN PES.NET_REVENUE\n  ELSE 0\nEND) AS mySumCaseCol"));
+                    return true;
+                }
+            },
+            new ExpressionTestCase
+            {
+                Name = "IfThenElseExpression_{m}",
+                Arrange = new Dictionary<string, Expression>(),
+                Act = (columns, visitor) =>
+                {
+                    var table = new RegisteredTableSource(101, "CLIENT_DSS", "DEPT", "PES");
+                    var nameCol = new RegisteredTableColumnExpression(1, "DEPARTMENT_NAME", table);
+                    var revenueCol = new RegisteredTableColumnExpression(2, "NET_REVENUE", table);
+                    var costCol = new RegisteredTableColumnExpression(3, "COST", table);
+                    var ifElseExp = new IfThenElseExpression(nameCol == "myDeptName", revenueCol, costCol);
+                    return ifElseExp.Accept(visitor);
+                },
+                Assertions = result =>
+                {
+                    var sql = (string)result;
+                    Assert.That(sql, Does.Contain("IFF"));
+                    Assert.That(sql, Is.EqualTo("IFF(PES.DEPARTMENT_NAME = 'myDeptName', PES.NET_REVENUE, PES.COST)"));
+                    return true;
+                }
+            }
+        };
+
+        foreach (var testCase in testCases)
+        {
+            yield return new TestCaseData(testCase).SetName(testCase.Name);
+        }
+    }
+
+    [TestCaseSource(nameof(ConditionalExpressionTestCases))]
+    public void ConditionalExpression_GeneratesCorrectSql(ExpressionTestCase testCase)
+        => ExecuteExpressionTest(testCase);
+}