Start to integrate file based testing

internal/repository_test/importFlag.go

@@ -4,52 +4,52 @@
 // license that can be found in the LICENSE file.
 package repository_test
 
-import "testing"
+import (
+	"bytes"
+	"go/format"
+	"os"
+	"path/filepath"
+	"testing"
+)
 
 func TestHandleImportFlag(t *testing.T) {
 	r := setupRepo(t)
 
-  paths, err := filepath.Glob(filepath.Join("testdata", "*.input"))
-  if err != nil {
-    t.Fatal(err)
-  }
+	tests, err := filepath.Glob(filepath.Join("testdata", "*.input"))
+	if err != nil {
+		t.Fatal(err)
+	}
 
-  for _, path := range paths {
-    _, filename := filepath.Split(path)
-    testname := filename[:len(filename)-len(filepath.Ext(path))]
-
-    // Each path turns into a test: the test name is the filename without the
-    // extension.
-    t.Run(testname, func(t *testing.T) {
-      source, err := os.ReadFile(path)
-      if err != nil {
-        t.Fatal("error reading source file:", err)
-      }
-
-      // >>> This is the actual code under test.
-      output, err := format.Source(source)
-      if err != nil {
-        t.Fatal("error formatting:", err)
-      }
-      // <<<
-
-      // Each input file is expected to have a "golden output" file, with the
-      // same path except the .input extension is replaced by .golden
-      goldenfile := filepath.Join("testdata", testname+".golden")
-      want, err := os.ReadFile(goldenfile)
-      if err != nil {
-        t.Fatal("error reading golden file:", err)
-      }
-
-      if !bytes.Equal(output, want) {
-        t.Errorf("\n==== got:\n%s\n==== want:\n%s\n", output, want)
-      }
-    })
-  }
+	for _, path := range tests {
+		_, filename := filepath.Split(path)
+		testname := filename[:len(filename)-len(filepath.Ext(path))]
 
+		t.Run(testname, func(t *testing.T) {
+			source, err := os.ReadFile(path)
+			if err != nil {
+				t.Fatal("error reading source file:", err)
+			}
 
+			// >>> This is the actual code under test.
+			output, err := format.Source(source)
+			if err != nil {
+				t.Fatal("error formatting:", err)
+			}
+			// <<<
 
+			// Each input file is expected to have a "golden output" file, with the
+			// same path except the .input extension is replaced by .golden
+			goldenfile := filepath.Join("testdata", testname+".golden")
+			want, err := os.ReadFile(goldenfile)
+			if err != nil {
+				t.Fatal("error reading golden file:", err)
+			}
 
+			if !bytes.Equal(output, want) {
+				t.Errorf("\n==== got:\n%s\n==== want:\n%s\n", output, want)
+			}
+		})
+	}
 
 	s := "../../test/repo/meta1.json:../../test/repo/data1.json"
 	err := HandleImportFlag(s)