enhance showcase with post validations on service and basic function …

…tests (#792)

* add postValidation on showcase relationalStore/Service/Basic

* update engine

* change example name

* function tests

* fix test

---------

Co-authored-by: Yannan <[email protected]>

showcases/data/Function/Function Tests/code.pure

@@ -0,0 +1,26 @@
+function model::Simple(): String[1]
+{
+  'Hello' + ' World!'
+}
+{
+  testPass | Simple() => 'Hello World!';
+}
+
+function model::Hello(name: String[1]): String[1]
+{
+  'Hello World! My name is ' + $name + '.'
+}
+{
+  testSuite_1
+  (
+    testPass | Hello('John') => 'Hello World! My name is John.';
+  )
+}
+
+function model::SimpleReference(): String[1]
+{
+  model::Simple()
+}
+{
+  testPass | SimpleReference() => 'Hello World!';
+}

showcases/data/Function/Function Tests/info.md

@@ -0,0 +1,6 @@
+---
+title: Function Tests
+description: Simple Function with Tests
+---
+
+The following showcase shows how to write tests for simple functions with and without parameters. Adding tests to your functions will help ensure your function behaves as expected as it is changed by other users.

showcases/data/Store/Relational Store/Service/Basic/code.pure

@@ -372,6 +372,20 @@ Service showcase::northwind::services::tds::OrderDetailsByIdTDS
     mapping: showcase::northwind::mapping::NorthwindMapping;
     runtime: showcase::northwind::runtime::NorthwindRuntime;
   }
+  postValidations:
+  [
+    {
+      description: 'a simple passing validation with static parameter';
+      params:[
+        |10248
+      ];
+      assertions:[
+        rowCountGreaterThan10: tds: TabularDataSet[1]|$tds->filter(
+  row: meta::pure::tds::TDSRow[1]|$row.getString('Employee/First Name')->startsWith('T')
+)->meta::legend::service::validation::assertTabularDataSetEmpty('Expected no Employee/First Name to begin with the letter T')
+      ];
+    }
+  ]
 }
 
 Service showcase::northwind::services::tds::ProductRankingWithinCategory
@@ -445,6 +459,20 @@ Service showcase::northwind::services::tds::Customers
     mapping: showcase::northwind::mapping::NorthwindMapping;
     runtime: showcase::northwind::runtime::NorthwindRuntime;
   }
+  postValidations:
+  [
+    {
+      description: 'A simple passing validation';
+      params:[
+
+      ];
+      assertions:[
+        noCompanyNamedAroundtheHorn: tds: TabularDataSet[1]|$tds->filter(
+  row: meta::pure::tds::TDSRow[1]|$row.getString('Company Name')->contains('Around the Hornsss')
+)->meta::legend::service::validation::assertTabularDataSetEmpty('Expected there is no company named Around the Hornsss')
+      ];
+    }
+  ]
 }
 
 Service showcase::northwind::services::graph::ShipperValidationDefects

showcases/data/Store/Relational Store/Service/Basic/info.md

@@ -3,4 +3,5 @@ title: Relational Service - Querying Product Northwind Data
 description: Example of Relational Service querying northwind test data with Mapping and Service Tests
 ---
 
-The connection uses here loads sample data from northwind. See https://github.com/pthom/northwind_psql for more info as well as the model. It includes a sample service querying products. Additionally it includes services and mapping tests.
+The connection used here loads sample data from [northwind](https://github.com/pthom/northwind_psql).  It includes a sample service querying products. Additionally it includes services and mapping tests. Some of the services include [post validations](https://github.com/finos/legend-engine/blob/master/docs/data-quality/service-post-validations.md) for better data quality.
+

showcases/pom.xml

@@ -16,7 +16,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <maven.surefire.thread.count>3</maven.surefire.thread.count>
         <showcase.projects.location>data</showcase.projects.location>
-        <legend.engine.version>4.37.7</legend.engine.version>
+        <legend.engine.version>4.37.8</legend.engine.version>
 
     </properties>
 
@@ -42,6 +42,12 @@
             <version>${legend.engine.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.finos.legend.engine</groupId>
+            <artifactId>legend-engine-test-runner-function</artifactId>
+            <version>${legend.engine.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.finos.legend.engine</groupId>
             <artifactId>legend-engine-test-runner-mapping</artifactId>