Adds tests for init and init-from-module command hooks

test/fixture-hooks/init-once/backend.tf

@@ -0,0 +1,3 @@
+terraform {
+  backend "s3" {}
+}

test/fixture-hooks/init-once/base-module/main.tf

@@ -0,0 +1,7 @@
+data "template_file" "example" {
+  template = "hello, world"
+}
+
+output "example" {
+  value = "${data.template_file.example.rendered}"
+}

test/fixture-hooks/init-once/no-source-no-backend/main.tf

@@ -0,0 +1,7 @@
+data "template_file" "example" {
+  template = "hello, world"
+}
+
+output "example" {
+  value = "${data.template_file.example.rendered}"
+}

test/fixture-hooks/init-once/no-source-no-backend/terraform.tfvars

@@ -0,0 +1,17 @@
+terragrunt = {
+  terraform {
+    # Should NOT execute. With no source, init-from-module should never execute.
+    # If AFTER_INIT_FROM_MODULE_ONLY_ONCE is present in output, the test failed
+    after_hook "after_init_from_module" {
+      commands = ["init-from-module"]
+      execute = ["echo","AFTER_INIT_FROM_MODULE_ONLY_ONCE"]
+    }
+
+    # SHOULD execute
+    # If AFTER_INIT_ONLY_ONCE is not present exactly once in output, the test failed
+    after_hook "after_init" {
+      commands = ["init"]
+      execute = ["echo","AFTER_INIT_ONLY_ONCE"]
+    }
+  }
+}

test/fixture-hooks/init-once/no-source-with-backend/main.tf

@@ -0,0 +1,11 @@
+terraform {
+  backend "s3" {}
+}
+
+data "template_file" "example" {
+  template = "hello, world"  
+}
+
+output "example" {
+  value = "${data.template_file.example.rendered}"
+}

test/fixture-hooks/init-once/no-source-with-backend/terraform.tfvars

@@ -0,0 +1,27 @@
+terragrunt = {
+  remote_state {
+    backend = "s3"
+    config {
+      encrypt = true
+      bucket = "__FILL_IN_BUCKET_NAME__"
+      key = "terraform.tfstate"
+      region = "__FILL_IN_REGION__"
+    }
+  }
+
+  terraform {
+    # Should NOT execute. With no source, init-from-module should never execute.
+    # If AFTER_INIT_FROM_MODULE_ONLY_ONCE is present in output, the test failed
+    after_hook "after_init_from_module" {
+      commands = ["init-from-module"]
+      execute = ["echo","AFTER_INIT_FROM_MODULE_ONLY_ONCE"]
+    }
+
+    # SHOULD execute.
+    # If AFTER_INIT_ONLY_ONCE is not echoed exactly once, the test failed
+    after_hook "after_init" {
+      commands = ["init"]
+      execute = ["echo","AFTER_INIT_ONLY_ONCE"]
+    }
+  }
+}

test/fixture-hooks/init-once/with-source-no-backend/terraform.tfvars

@@ -0,0 +1,19 @@
+terragrunt = {
+  terraform {
+    source = "../base-module"
+
+    # SHOULD execute.
+    # If AFTER_INIT_FROM_MODULE_ONLY_ONCE is not echoed exactly once, the test failed
+    after_hook "after_init_from_module" {
+      commands = ["init-from-module"]
+      execute = ["echo","AFTER_INIT_FROM_MODULE_ONLY_ONCE"]
+    }
+
+    # SHOULD execute.
+    # If AFTER_INIT_ONLY_ONCE is not echoed exactly once, the test failed
+    after_hook "after_init" {
+      commands = ["init"]
+      execute = ["echo","AFTER_INIT_ONLY_ONCE"]
+    }
+  }
+}

test/fixture-hooks/init-once/with-source-with-backend/terraform.tfvars

@@ -0,0 +1,34 @@
+terragrunt = {
+  remote_state {
+    backend = "s3"
+    config {
+      encrypt = true
+      bucket = "__FILL_IN_BUCKET_NAME__"
+      key = "terraform.tfstate"
+      region = "__FILL_IN_REGION__"
+    }
+  }
+
+  terraform {
+    source = "../base-module"
+
+    after_hook "backend" {
+      commands = ["init-from-module"]
+      execute  = ["cp", "${get_tfvars_dir()}/../backend.tf", "."]
+    }
+
+    # SHOULD execute.
+    # If AFTER_INIT_FROM_MODULE_ONLY_ONCE is not echoed exactly once, the test failed
+    after_hook "after_init_from_module" {
+      commands = ["init-from-module"]
+      execute = ["echo","AFTER_INIT_FROM_MODULE_ONLY_ONCE"]
+    }
+
+    # SHOULD execute.
+    # If AFTER_INIT_ONLY_ONCE is not echoed exactly once, the test failed
+    after_hook "after_init" {
+      commands = ["init"]
+      execute = ["echo","AFTER_INIT_ONLY_ONCE"]
+    }
+  }
+}