rcc: add an integration test

cmd/miqt-rcc/integration_test.go

@@ -0,0 +1,145 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestRcc(t *testing.T) {
+
+	// Temporary directory
+
+	td := t.TempDir() // The go test package auto cleans this up
+
+	// Simulate working out of a Go module that has this miqt checkout as a
+	// local dependency
+
+	RccDir, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	fakeGoMod := `module miqt-rcc-integration-test
+
+go 1.19
+
+require (
+	github.com/mappu/miqt v1.0.0
+)
+
+replace github.com/mappu/miqt => ` + filepath.Clean(RccDir+`/../../`) + `
+`
+	err = ioutil.WriteFile(filepath.Join(td, `go.mod`), []byte(fakeGoMod), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Add some test content
+
+	err = ioutil.WriteFile(filepath.Join(td, "sample.data"), []byte("the quick brown fox jumps over the lazy dog"), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Make a .qrc that includes this file
+
+	err = ioutil.WriteFile(filepath.Join(td, "resources.qrc"), []byte(
+		`<RCC>
+    <qresource prefix="/">
+        <file>sample.data</file>
+    </qresource>
+</RCC>`), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Build miqt-rcc and add it to our fake tools path
+
+	toolsDir := t.TempDir()
+
+	t.Run("Compile miqt-rcc", func(t *testing.T) {
+
+		buildCmd := exec.Command(`go`, `build`, `-o`, filepath.Join(toolsDir, `miqt-rcc`))
+		buildCmd.Stderr = os.Stderr
+		buildCmd.Stdout = os.Stdout
+		err = buildCmd.Run()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+	})
+
+	t.Run("Initial build", func(t *testing.T) {
+
+		// Run miqt-rcc
+
+		rccCmd := exec.Command(filepath.Join(toolsDir, `miqt-rcc`), `-Input`, filepath.Join(td, `resources.qrc`), `-OutputGo`, filepath.Join(td, `resources.go`))
+		rccCmd.Stderr = os.Stderr
+		err = rccCmd.Run()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		// Verify that files are created
+
+		_, err = os.Stat(filepath.Join(td, `resources.rcc`))
+		if err != nil {
+			t.Errorf("resources.rcc should exist: %v", err)
+		}
+
+		goResult, err := ioutil.ReadFile(filepath.Join(td, `resources.go`))
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		// Verify the go:embed line accurately used a relative path
+
+		if !strings.Contains(string(goResult), "//go:embed resources.rcc\n") {
+			t.Fatal("missing expected embed line")
+		}
+
+		// Verify the go:generate line matches our expectation
+
+		expect := `//go:generate miqt-rcc -Input "` + filepath.Join(td, `resources.qrc`) + `" -OutputGo "resources.go" -OutputRcc "resources.rcc"`
+		if !strings.Contains(string(goResult), expect) {
+			t.Fatal("missing expected generate line")
+		}
+
+	})
+
+	t.Run("Go generate", func(t *testing.T) {
+
+		// Verify that `go generate` works
+
+		regenCmd := exec.Command(`go`, `generate`)
+		regenCmd.Env = []string{"PATH=" + toolsDir + ":" + os.Getenv("PATH")}
+		regenCmd.Dir = td
+		regenCmd.Stderr = os.Stderr
+		err = regenCmd.Run()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		goResult, err := ioutil.ReadFile(filepath.Join(td, `resources.go`))
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		// Verify the go:embed line accurately used a relative path
+
+		if !strings.Contains(string(goResult), "//go:embed resources.rcc\n") {
+			t.Fatal("missing expected embed line")
+		}
+
+		// Verify the go:generate line matches our expectation
+
+		expect := `//go:generate miqt-rcc -Input "` + filepath.Join(td, `resources.qrc`) + `" -OutputGo "resources.go" -OutputRcc "resources.rcc"`
+		if !strings.Contains(string(goResult), expect) {
+			t.Fatal("missing expected generate line")
+		}
+	})
+}