feat: Introduce assertions generators part1

Makefile

@@ -123,4 +123,16 @@ generate-show-output-schemas: ## Generate show output schemas with mappers
 clean-show-output-schemas: ## Clean generated show output schemas
 	rm -f ./pkg/schemas/*_gen.go
 
+generate-snowflake-object-assertions: ## Generate snowflake object assertions
+	go generate ./pkg/acceptance/bettertestspoc/assert/objectassert/generate.go
+
+clean-snowflake-object-assertions: ## Clean snowflake object assertions
+	rm -f ./pkg/acceptance/bettertestspoc/assert/objectassert/*_gen.go
+
+generate-snowflake-object-parameters-assertions: ## Generate snowflake object parameters assertions
+	go generate ./pkg/acceptance/bettertestspoc/assert/objectparametersassert/generate.go
+
+clean-snowflake-object-parameters-assertions: ## Clean snowflake object parameters assertions
+	rm -f ./pkg/acceptance/bettertestspoc/assert/objectparametersassert/*_gen.go
+
 .PHONY: build-local clean-generator-poc dev-setup dev-cleanup docs docs-check fmt fmt-check fumpt help install lint lint-fix mod mod-check pre-push pre-push-check sweep test test-acceptance uninstall-tf

pkg/acceptance/bettertestspoc/README.md

@@ -1,9 +1,13 @@
 # Better tests poc
 This package contains a quick implementation of helpers that should allow us a quicker, more pleasant, and more readable implementation of tests, mainly the acceptance ones.
 It contains the following packages:
-- `assert` - all the assertions reside here. The currently supported assertions are: resource assertions, show output assertions, parameters assertions, and Snowflake object assertions.
-The package contains utilities to build assertions for new objects.
-All the assertions will be ultimately generated; the ones presented for warehouse were manually created.
+- `assert` - all the assertions reside here. Also, the utilities to build assertions for new objects. All the assertions will be ultimately generated; the ones presented in this folder were manually created. The currently supported assertions are:
+  - resource assertions (currently, created manually)
+  - show output assertions (currently, created manually)
+  - resource parameters assertions (currently, created manually)
+  - Snowflake object assertions (generated in subpackage `objectassert`)
+  - Snowflake object parameters assertions (generated in subpackage `objectparametersassert`)
+
 - `config` - the new ResourceModel abstraction resides here. It provides models for objects and the builder methods allowing better config preparation in the acceptance tests.
 It aims to be more readable than using `Config:` with hardcoded string or `ConfigFile:` for file that is not directly reachable from the test body. Also, it should be easier to reuse the models and prepare convenience extension methods.
 All the models will be ultimately generated; the ones presented for warehouse were manually created.
@@ -21,7 +25,7 @@ You can check the current example usage in `TestAcc_Warehouse_BasicFlows` and th
     assert.WarehouseParameters(t, "snowflake_warehouse.w").
         HasMaxConcurrencyLevel(16).
         HasMaxConcurrencyLevelLevel(sdk.ParameterTypeWarehouse),
-    assert.Warehouse(t, warehouseId).
+    objectassert.Warehouse(t, warehouseId).
         HasName("bad name").
         HasState(sdk.WarehouseStateSuspended).
         HasType(sdk.WarehouseTypeSnowparkOptimized).
@@ -89,7 +93,7 @@ it will result in:
         HasStatementQueuedTimeoutInSecondsLevel(sdk.ParameterTypeWarehouse).
         HasStatementTimeoutInSeconds(1232).
         HasStatementTimeoutInSecondsLevel(sdk.ParameterTypeWarehouse),
-    assert.Warehouse(t, warehouseId).
+    objectassert.Warehouse(t, warehouseId).
         HasName("bad name").
         HasState(sdk.WarehouseStateSuspended).
         HasType(sdk.WarehouseTypeSnowparkOptimized).
@@ -147,7 +151,7 @@ it will result in:
 - add the following to the `create: complete` in `TestInt_Warehouses`:
 ```go
     // to show errors
-    warehouseAssertionsBad := objectAssert.Warehouse(t, id).
+    warehouseAssertionsBad := objectassert.Warehouse(t, id).
         HasName("bad name").
         HasState(sdk.WarehouseStateSuspended).
         HasType(sdk.WarehouseTypeSnowparkOptimized).
@@ -161,7 +165,7 @@ it will result in:
         HasComment("bad comment").
         HasEnableQueryAcceleration(false).
         HasQueryAccelerationMaxScaleFactor(12)
-    objectAssert.AssertThatObject(t, warehouseAssertionsBad)
+    assertions.AssertThatObject(t, warehouseAssertionsBad)
 ```
 it will result in:
 ```
@@ -345,43 +349,9 @@ func (w *WarehouseParametersAssert) HasDefaultStatementTimeoutInSeconds() *Wareh
 ```
 
 ## Adding new Snowflake object assertions
-For object `abc` create the following files with the described content in the `assert` package:
-- `abc_snowflake.go`
-```go
-type AbcAssert struct {
-    *SnowflakeObjectAssert[sdk.Abc, sdk.AccountObjectIdentifier]
-}
-
-func Abc(t *testing.T, id sdk.AccountObjectIdentifier) *AbcAssert {
-    t.Helper()
-    return &AbcAssert{
-        NewSnowflakeObjectAssertWithProvider(sdk.ObjectTypeAbc, id, acc.TestClient().Abc.Show),
-    }
-}
-
-func AbcFromObject(t *testing.T, abc *sdk.Abc) *AbcAssert {
-    t.Helper()
-    return &AbcAssert{
-        NewSnowflakeObjectAssertWithObject(sdk.ObjectTypeAbc, abc.ID(), abc),
-    }
-}
-```
-
-A method for each object parameter (let's say parameter name is xyz):
-```go
-func (w *AbcAssert) HasXyz(expected string) *AbcAssert {
-    w.assertions = append(w.assertions, func(t *testing.T, o *sdk.Abc) error {
-        t.Helper()
-        if o.Xyz != expected {
-            return fmt.Errorf("expected xyz: %v; got: %v", expected, o.Xyz)
-        }
-        return nil
-    })
-    return w
-}
-```
-
-- `abc_snowflake_ext.go` - for the easier separation later (when we start generating the common checks for each object). Example would be:
+Snowflake object assertions can be generated automatically. For object `abc` do the following:
+- add object you want to generate to `allStructs` slice in the `assert/objectassert/gen/main/main.go`
+- to add custom (not generated assertions) create file `abc_snowflake_ext.go` in the `objectassert` package. Example would be:
 ```go
 func (w *WarehouseAssert) HasStateOneOf(expected ...sdk.WarehouseState) *WarehouseAssert {
     w.assertions = append(w.assertions, func(t *testing.T, o *sdk.Warehouse) error {
@@ -395,6 +365,19 @@ func (w *WarehouseAssert) HasStateOneOf(expected ...sdk.WarehouseState) *Warehou
 }
 ```
 
+## Adding new Snowflake object parameters assertions
+Snowflake object parameters assertions can be generated automatically. For object `abc` do the following:
+- add object you want to generate to `allObjectsParameters` slice in the `assert/objectparametersassert/gen/main/main.go`
+- make sure that test helper method `acc.TestClient().Parameter.ShowAbcParameters` exists in `/pkg/acceptance/helpers/parameter_client.go`
+- to add custom (not generated assertions) create file `abc_parameters_snowflake_ext.go` in the `objectparametersassert` package. Example would be:
+```go
+func (w *WarehouseParametersAssert) HasDefaultMaxConcurrencyLevel() *WarehouseParametersAssert {
+    return w.
+        HasMaxConcurrencyLevel(8).
+        HasMaxConcurrencyLevelLevel("")
+}
+```
+
 ## Adding new models
 For object `abc` create the following files with the described content in the `config` package:
 - `abc_model.go`
@@ -447,7 +430,7 @@ func BasicWarehouseModel(
 ```
 
 ## Known limitations/planned improvements
-- Generate all assertions and models.
+- Generate all missing assertions and models.
 - Test all the utilities for assertion/model construction (public interfaces, methods, functions).
 - Verify if all the config types are supported.
 - Consider a better implementation for the model conversion to config (TODO left).
@@ -468,3 +451,7 @@ func (w *WarehouseDatasourceShowOutputAssert) IsEmpty() {
     w.assertions = append(w.assertions, valueSet("show_output.#", "0"))
 }
 ```
+- support other mappings if needed (TODO left in `assert/objectassert/gen/model.go`)
+- consider extracting preamble model to commons (TODOs left in `assert/objectassert/gen/model.go` and in `assert/objectparametersassert/gen/model.go`)
+- get a runtime name for the assertion creator (TODOs left in `assert/objectparametersassert/gen/model.go`)
+- use a better definition for each objet's snowflake parameters (TODO left in `assert/objectparametersassert/gen/main/main.go`)

pkg/acceptance/bettertestspoc/assert/objectassert/gen/main/main.go

@@ -0,0 +1,55 @@
+//go:build exclude
+
+package main
+
+import (
+	"github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance/bettertestspoc/assert/objectassert/gen"
+	"github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/internal/genhelpers"
+	"github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/sdk"
+)
+
+func main() {
+	genhelpers.NewGenerator(
+		getSdkObjectDetails,
+		gen.ModelFromSdkObjectDetails,
+		getFilename,
+		gen.AllTemplates,
+	).
+		RunAndHandleOsReturn()
+}
+
+type SdkObjectDef struct {
+	idType       string
+	objectType   sdk.ObjectType
+	objectStruct any
+}
+
+func getSdkObjectDetails() []genhelpers.SdkObjectDetails {
+	allSdkObjectsDetails := make([]genhelpers.SdkObjectDetails, len(allStructs))
+	for idx, d := range allStructs {
+		structDetails := genhelpers.ExtractStructDetails(d.objectStruct)
+		allSdkObjectsDetails[idx] = genhelpers.SdkObjectDetails{
+			IdType:        d.idType,
+			ObjectType:    d.objectType,
+			StructDetails: structDetails,
+		}
+	}
+	return allSdkObjectsDetails
+}
+
+func getFilename(_ genhelpers.SdkObjectDetails, model gen.SnowflakeObjectAssertionsModel) string {
+	return genhelpers.ToSnakeCase(model.Name) + "_snowflake" + "_gen.go"
+}
+
+var allStructs = []SdkObjectDef{
+	{
+		idType:       "sdk.AccountObjectIdentifier",
+		objectType:   sdk.ObjectTypeUser,
+		objectStruct: sdk.User{},
+	},
+	{
+		idType:       "sdk.AccountObjectIdentifier",
+		objectType:   sdk.ObjectTypeWarehouse,
+		objectStruct: sdk.Warehouse{},
+	},
+}

pkg/acceptance/bettertestspoc/assert/objectassert/gen/model.go

@@ -0,0 +1,81 @@
+package gen
+
+import (
+	"os"
+	"slices"
+	"strings"
+
+	"github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/internal/genhelpers"
+)
+
+// TODO [SNOW-1501905]: extract to commons?
+type PreambleModel struct {
+	PackageName               string
+	AdditionalStandardImports []string
+}
+
+type SnowflakeObjectAssertionsModel struct {
+	Name    string
+	SdkType string
+	IdType  string
+	Fields  []SnowflakeObjectFieldAssertion
+	PreambleModel
+}
+
+func (m SnowflakeObjectAssertionsModel) SomeFunc() {
+}
+
+type SnowflakeObjectFieldAssertion struct {
+	Name                  string
+	ConcreteType          string
+	IsOriginalTypePointer bool
+	Mapper                genhelpers.Mapper
+}
+
+func ModelFromSdkObjectDetails(sdkObject genhelpers.SdkObjectDetails) SnowflakeObjectAssertionsModel {
+	name, _ := strings.CutPrefix(sdkObject.Name, "sdk.")
+	fields := make([]SnowflakeObjectFieldAssertion, len(sdkObject.Fields))
+	imports := make(map[string]struct{})
+	for idx, field := range sdkObject.Fields {
+		fields[idx] = MapToSnowflakeObjectFieldAssertion(field)
+		additionalImport, isImportedType := field.GetImportedType()
+		if isImportedType {
+			imports[additionalImport] = struct{}{}
+		}
+	}
+	additionalImports := make([]string, 0)
+	for k := range imports {
+		if !slices.Contains([]string{"sdk"}, k) {
+			additionalImports = append(additionalImports, k)
+		}
+	}
+
+	packageWithGenerateDirective := os.Getenv("GOPACKAGE")
+	return SnowflakeObjectAssertionsModel{
+		Name:    name,
+		SdkType: sdkObject.Name,
+		IdType:  sdkObject.IdType,
+		Fields:  fields,
+		PreambleModel: PreambleModel{
+			PackageName:               packageWithGenerateDirective,
+			AdditionalStandardImports: additionalImports,
+		},
+	}
+}
+
+func MapToSnowflakeObjectFieldAssertion(field genhelpers.Field) SnowflakeObjectFieldAssertion {
+	concreteTypeWithoutPtr, _ := strings.CutPrefix(field.ConcreteType, "*")
+
+	// TODO [SNOW-1501905]: handle other mappings if needed
+	mapper := genhelpers.Identity
+	if concreteTypeWithoutPtr == "sdk.AccountObjectIdentifier" {
+		mapper = genhelpers.Name
+	}
+
+	return SnowflakeObjectFieldAssertion{
+		Name:                  field.Name,
+		ConcreteType:          field.ConcreteType,
+		IsOriginalTypePointer: field.IsPointer(),
+		Mapper:                mapper,
+	}
+}

pkg/acceptance/bettertestspoc/assert/objectassert/gen/templates.go

@@ -0,0 +1,33 @@
+package gen
+
+import (
+	"text/template"
+
+	_ "embed"
+
+	"github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/internal/genhelpers"
+)
+
+var (
+	//go:embed templates/preamble.tmpl
+	preambleTemplateContent string
+	PreambleTemplate, _     = template.New("preambleTemplate").Parse(preambleTemplateContent)
+
+	//go:embed templates/definition.tmpl
+	definitionTemplateContent string
+	DefinitionTemplate, _     = template.New("definitionTemplate").Funcs(genhelpers.BuildTemplateFuncMap(
+		genhelpers.FirstLetterLowercase,
+	)).Parse(definitionTemplateContent)
+
+	//go:embed templates/assertions.tmpl
+	assertionsTemplateContent string
+	AssertionsTemplate, _     = template.New("assertionsTemplate").Funcs(genhelpers.BuildTemplateFuncMap(
+		genhelpers.FirstLetterLowercase,
+		genhelpers.FirstLetter,
+		genhelpers.TypeWithoutPointer,
+		genhelpers.CamelToWords,
+		genhelpers.RunMapper,
+	)).Parse(assertionsTemplateContent)
+
+	AllTemplates = []*template.Template{PreambleTemplate, DefinitionTemplate, AssertionsTemplate}
+)

pkg/acceptance/bettertestspoc/assert/objectassert/gen/templates/assertions.tmpl

@@ -0,0 +1,23 @@
+{{- /*gotype: github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance/bettertestspoc/assert/objectassert/gen.SnowflakeObjectAssertionsModel*/ -}}
+
+{{ $assertName := .Name | printf "%sAssert" }}
+{{ $sdkType := .SdkType }}
+{{ $nameLowerCase := FirstLetterLowercase .Name }}
+{{ $assertVar := FirstLetter $nameLowerCase }}
+{{- range .Fields }}
+    func ({{ $assertVar }} *{{ $assertName }}) Has{{ .Name }}(expected {{ TypeWithoutPointer .ConcreteType }}) *{{ $assertName }} {
+        {{ $assertVar }}.AddAssertion(func(t *testing.T, o *{{ $sdkType }}) error {
+            t.Helper()
+            {{ if .IsOriginalTypePointer -}}
+            if o.{{ .Name }} == nil {
+                return fmt.Errorf("expected {{ CamelToWords .Name }} to have value; got: nil")
+            }
+            {{ end -}}
+            if {{ if .IsOriginalTypePointer }}*{{ end }}{{ RunMapper .Mapper "o." .Name }} != {{ RunMapper .Mapper "expected" }} {
+                return fmt.Errorf("expected {{ CamelToWords .Name }}: %v; got: %v", {{ RunMapper .Mapper "expected" }}, {{ if .IsOriginalTypePointer }}*{{ end }}{{ RunMapper .Mapper "o." .Name }})
+            }
+            return nil
+        })
+        return {{ $assertVar }}
+    }
+{{ end }}

pkg/acceptance/bettertestspoc/assert/objectassert/gen/templates/definition.tmpl

@@ -0,0 +1,21 @@
+{{- /*gotype: github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance/bettertestspoc/assert/objectassert/gen.SnowflakeObjectAssertionsModel*/ -}}
+
+{{ $assertName := .Name | printf "%sAssert" }}
+{{ $nameLowerCase := FirstLetterLowercase .Name }}
+type {{ $assertName }} struct {
+    *assert.SnowflakeObjectAssert[{{ .SdkType }}, {{ .IdType }}]
+}
+
+func {{ .Name }}(t *testing.T, id {{ .IdType }}) *{{ $assertName }} {
+    t.Helper()
+    return &{{ $assertName }}{
+        assert.NewSnowflakeObjectAssertWithProvider(sdk.ObjectType{{ .Name }}, id, acc.TestClient().{{ .Name }}.Show),
+    }
+}
+
+func {{ .Name }}FromObject(t *testing.T, {{ $nameLowerCase }} *{{ .SdkType }}) *{{ $assertName }} {
+    t.Helper()
+    return &{{ $assertName }}{
+        assert.NewSnowflakeObjectAssertWithObject(sdk.ObjectType{{ .Name }}, {{ $nameLowerCase }}.ID(), {{ $nameLowerCase }}),
+    }
+}

pkg/acceptance/bettertestspoc/assert/objectassert/gen/templates/preamble.tmpl

@@ -0,0 +1,18 @@
+{{- /*gotype: github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance/bettertestspoc/assert/objectassert/gen.PreambleModel*/ -}}
+
+// Code generated by sdk-to-schema generator; DO NOT EDIT.
+
+package {{ .PackageName }}
+
+import (
+    "fmt"
+    "testing"
+    {{- range .AdditionalStandardImports }}
+    "{{- . }}"
+    {{- end }}
+
+    acc "github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance"
+
+    "github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/acceptance/bettertestspoc/assert"
+    "github.com/Snowflake-Labs/terraform-provider-snowflake/pkg/sdk"
+)

pkg/acceptance/bettertestspoc/assert/objectassert/generate.go

@@ -0,0 +1,3 @@
+package objectassert
+
+//go:generate go run ./gen/main/main.go $SF_TF_GENERATOR_ARGS