test: Add unit tests for Graph Query Builder

src/Promitor.Tests.Unit/Builders/Queries/GraphQueryBuilderTests.cs

@@ -0,0 +1,228 @@
+using System;
+using System.Collections.Generic;
+using Promitor.Agents.ResourceDiscovery.Graph.Query;
+using Xunit;
+
+namespace Promitor.Tests.Unit.Builders.Queries
+{
+    public class GraphQueryBuilderTests
+    {
+        private const string ResourceType = "resource type";
+
+        [Fact]
+        public void ForResourceType_SingleResourceType_ReturnsValidGraphQueryBuilder()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                "| where type =~ 'resource type'";
+
+            // Act
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void ForResourceType_TwoResourceTypes_ReturnsValidGraphQueryBuilder()
+        {
+            // Arrange
+            const string ResourceType1 = "resource type 1";
+            const string ResourceType2 = "resource type 2";
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type 1'{Environment.NewLine}" +
+                " or type =~ 'resource type 2'";
+
+            // Act
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(new[] { ResourceType1, ResourceType2 });
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Theory]
+        [InlineData(Operator.Contains, "contains")]
+        [InlineData(Operator.DoesNotContain, "!contains")]
+        [InlineData(Operator.DoesNotEquals, "!=")]
+        [InlineData(Operator.Equals, "==")]
+        public void Where_AppendCorrectQuery(Operator @operator, string queryOperatopr)
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| where field " + queryOperatopr + " 'value'";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            // Act
+            graphQueryBuilder.Where("field", @operator, "value");
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void WithSubscriptionsWithIds_AppendCorrectQuery()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| where subscriptionId =~ 'subscription Id 1' or subscriptionId =~ 'subscription Id 2' or subscriptionId =~ 'subscription Id 3'";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            List<string> subscriptionIds = new List<string>
+            {
+                "subscription Id 1",
+                "subscription Id 2",
+                "subscription Id 3"
+            };
+
+            // Act
+            graphQueryBuilder.WithSubscriptionsWithIds(subscriptionIds);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void WithResourceGroupsWithName_AppendCorrectQuery()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| where resourceGroup =~ 'resourceGroup 1' or resourceGroup =~ 'resourceGroup 2' or resourceGroup =~ 'resourceGroup 3'";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            List<string> resourceGroups = new List<string>
+            {
+                "resourceGroup 1",
+                "resourceGroup 2",
+                "resourceGroup 3"
+            };
+
+            // Act
+            graphQueryBuilder.WithResourceGroupsWithName(resourceGroups);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void WithinRegions_AppendCorrectQuery()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| where location =~ 'region 1' or location =~ 'region 2' or location =~ 'region 3'";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            List<string> regions = new List<string>
+            {
+                "region 1",
+                "region 2",
+                "region 3"
+            };
+
+            // Act
+            graphQueryBuilder.WithinRegions(regions);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void WithinTags_AppendCorrectQuery()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| where tags['tag key 1'] == 'tag value 1' or tags['tag key 2'] == 'tag value 2' or tags['tag key 3'] == 'tag value 3'";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            Dictionary<string, string> tags = new Dictionary<string, string>
+            {
+                ["tag key 1"] = "tag value 1",
+                ["tag key 2"] = "tag value 2",
+                ["tag key 3"] = "tag value 3",
+            };
+
+            // Act
+            graphQueryBuilder.WithTags(tags);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void Project_SingleField_ReturnsValidGraphQueryBuilder()
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| project field";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            // Act
+            graphQueryBuilder.Project("field");
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Fact]
+        public void Project_TwoFields_ReturnsValidGraphQueryBuilder()
+        {
+            // Arrange
+            const string Field1 = "field 1";
+            const string Field2 = "field 2";
+
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| project field 1, field 2";
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            // Act
+            graphQueryBuilder.Project(new[] { Field1, Field2 });
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+
+        [Theory]
+        [InlineData(1)]
+        [InlineData(10)]
+        [InlineData(17)]
+        [InlineData(58)]
+        public void LimitTo_AppendCorrectQuery(int limit)
+        {
+            // Arrange
+            string ExpectedQuery =
+                $"Resources{Environment.NewLine}" +
+                $"| where type =~ 'resource type'{Environment.NewLine}" +
+                "| limit " + limit;
+
+            GraphQueryBuilder graphQueryBuilder = GraphQueryBuilder.ForResourceType(ResourceType);
+
+            // Act
+            graphQueryBuilder.LimitTo(limit);
+
+            // Assert
+            Assert.Equal(ExpectedQuery, graphQueryBuilder.Build());
+        }
+    }
+}