Feature/206 tf test (#207)

added Example of using tf-cmd-api show command to write pre-provision test similar to sentinel using groovy and spock

authored-by: robert <rdhutto1@gamil.com>

examples/tf-s3/pom.xml

@@ -27,6 +27,11 @@
       <artifactId>tf-cmd-api</artifactId>
       <version>${tf-maven-version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.deliveredtechnologies</groupId>
+      <artifactId>tf-test</artifactId>
+      <version>${tf-maven-version}</version>
+    </dependency>
     <!-- https://mvnrepository.com/artifact/org.codehaus.groovy/groovy -->
     <dependency>
       <groupId>org.codehaus.groovy</groupId>

examples/tf-s3/src/main/tf/s3_sentinel_demo/main.tf

@@ -0,0 +1,31 @@
+provider "aws" {
+  region = "us-east-1"
+}
+
+resource "aws_s3_bucket" "bucket1" {
+  bucket = "bucket1"
+
+  versioning {
+    enabled = true
+  }
+
+  tags = {
+    application_id = "cna"
+    stack_name = "stacked"
+    created_by = "rhutto@deliveredtech.com"
+  }
+}
+
+resource "aws_s3_bucket" "bucket2" {
+  bucket = "bucket2"
+
+  versioning {
+    enabled = true
+  }
+
+  tags = {
+    application_id = "cna"
+    stack_name = "stacked"
+    created_by = "rhutto@deliveredtech.com"
+  }
+}

examples/tf-s3/src/test/groovy/tf/s3/S3SentinelSpec.groovy

@@ -0,0 +1,63 @@
+package tf.s3
+
+
+import com.deliveredtechnologies.terraform.fluent.api.Terraform
+import com.deliveredtechnologies.terraform.fluent.api.TfPlan
+import spock.lang.Shared
+import spock.lang.Specification
+import spock.lang.Unroll
+
+class S3SentinelSpec extends Specification {
+
+    @Shared
+    TfPlan tfplan;
+    @Shared
+    mandatory_tags = [
+            "application_id",
+            "stack_name",
+            "created_by",
+    ]
+
+    @Unroll("#s3Bucket.address has all the mandatory tags")
+    def "S3 resources have all mandatory tags"() {
+
+        expect:
+        hasMandatoryTags(s3Bucket)
+
+        where:
+        s3Bucket << tfplan.getResourcesByType("aws_s3_bucket")
+    }
+
+    @Unroll("#s3Bucket.address versioning enabled == true")
+    def "S3 versioning enabled"() {
+
+        expect:
+        isVersioningEnabled(s3Bucket)
+
+        where:
+        s3Bucket << tfplan.getResourcesByType("aws_s3_bucket")
+    }
+
+    void isVersioningEnabled(Map resource) {
+        Map m = resource.change.after
+        assert m.containsKey("versioning")
+        assert m.versioning[0].enabled == true
+    }
+
+    void hasMandatoryTags(Map resource) {
+        mandatory_tags.each {tag ->
+            Map resourceTags = resource.change.after.tags
+            assert resourceTags.containsKey(tag)
+        }
+    }
+
+    def setupSpec() {
+
+        Terraform terraform = new Terraform().withRootDir('s3_sentinel_demo')
+                .withProperties([
+                        noColor: true,
+                ])
+        tfplan = terraform.initAndPlan()
+    }
+
+}

examples/tf-s3/src/test/groovy/tf/s3/S3Spec.groovy

@@ -6,8 +6,6 @@ import com.deliveredtechnologies.terraform.api.TerraformApply
 import com.deliveredtechnologies.terraform.api.TerraformDestroy
 import com.deliveredtechnologies.terraform.api.TerraformInit
 import com.deliveredtechnologies.terraform.api.TerraformOutput
-import com.deliveredtechnologies.terraform.api.TerraformPlan
-import groovy.json.JsonOutput
 import groovy.json.JsonSlurper
 import spock.lang.Specification