postcss: Move integration test to its own package

resources/resource_transformers/postcss/integration_test.go

@@ -0,0 +1,148 @@
+// Copyright 2021 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package postcss_test
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	jww "github.com/spf13/jwalterweatherman"
+
+	qt "github.com/frankban/quicktest"
+	"github.com/gohugoio/hugo/htesting"
+	"github.com/gohugoio/hugo/hugolib"
+)
+
+func TestTransformPostCSS(t *testing.T) {
+	if !htesting.IsCI() {
+		t.Skip("Skip long running test when running locally")
+	}
+
+	c := qt.New(t)
+
+	files := `
+-- assets/css/components/a.css --
+class-in-a {
+	color: blue;
+}
+
+-- assets/css/components/all.css --
+@import "a.css";
+@import "b.css";
+-- assets/css/components/b.css --
+@import "a.css";
+
+class-in-b {
+	color: blue;
+}
+
+-- assets/css/styles.css --
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+@import "components/all.css";
+h1 {
+	@apply text-2xl font-bold;
+}
+
+-- config.toml --
+disablekinds = ['taxonomy', 'term', 'page']
+-- content/p1.md --
+-- data/hugo.toml --
+slogan = "Hugo Rocks!"
+-- i18n/en.yaml --
+hello:
+   other: "Hello"
+-- i18n/fr.yaml --
+hello:
+   other: "Bonjour"
+-- layouts/index.html --
+{{ $options := dict "inlineImports" true }}
+{{ $styles := resources.Get "css/styles.css" | resources.PostCSS $options }}
+Styles RelPermalink: {{ $styles.RelPermalink }}
+{{ $cssContent := $styles.Content }}
+Styles Content: Len: {{ len $styles.Content }}|
+-- package.json --
+{
+	"scripts": {},
+
+	"devDependencies": {
+	"postcss-cli": "7.1.0",
+	"tailwindcss": "1.2.0"
+	}
+}
+-- postcss.config.js --
+console.error("Hugo Environment:", process.env.HUGO_ENVIRONMENT );
+// https://github.com/gohugoio/hugo/issues/7656
+console.error("package.json:", process.env.HUGO_FILE_PACKAGE_JSON );
+console.error("PostCSS Config File:", process.env.HUGO_FILE_POSTCSS_CONFIG_JS );
+
+module.exports = {
+	plugins: [
+	require('tailwindcss')
+	]
+}
+
+`
+
+	c.Run("Success", func(c *qt.C) {
+		b := hugolib.NewIntegrationTestBuilder(
+			hugolib.IntegrationTestConfig{
+				T:               c,
+				NeedsOsFS:       true,
+				NeedsNpmInstall: true,
+				LogLevel:        jww.LevelInfo,
+				TxtarString:     files,
+			}).Build()
+
+		b.AssertLogContains("Hugo Environment: production")
+		b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("PostCSS Config File: %s/postcss.config.js", b.Cfg.WorkingDir)))
+		b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("package.json: %s/package.json", b.Cfg.WorkingDir)))
+
+		b.AssertFileContent("public/index.html", `
+Styles RelPermalink: /css/styles.css
+Styles Content: Len: 770875|
+`)
+	})
+
+	c.Run("Error", func(c *qt.C) {
+		s, err := hugolib.NewIntegrationTestBuilder(
+			hugolib.IntegrationTestConfig{
+				T:               c,
+				NeedsOsFS:       true,
+				NeedsNpmInstall: true,
+				TxtarString:     strings.ReplaceAll(files, "color: blue;", "@apply foo;"), // Syntax error
+			}).BuildE()
+		s.AssertIsFileError(err)
+	})
+}
+
+// bookmark2
+func TestIntegrationTestTemplate(t *testing.T) {
+	c := qt.New(t)
+
+	files := ``
+
+	b := hugolib.NewIntegrationTestBuilder(
+		hugolib.IntegrationTestConfig{
+			T:               c,
+			NeedsOsFS:       false,
+			NeedsNpmInstall: false,
+			TxtarString:     files,
+		}).Build()
+
+	b.Assert(true, qt.IsTrue)
+}