github.com/senomas/gqlgen@v0.17.11-0.20220626120754-9aee61b0716a/plugin/resolvergen/resolver_test.go (about)

     1  package resolvergen
     2  
     3  import (
     4  	"fmt"
     5  	"os"
     6  	"syscall"
     7  	"testing"
     8  
     9  	"github.com/99designs/gqlgen/codegen"
    10  	"github.com/99designs/gqlgen/codegen/config"
    11  	"github.com/stretchr/testify/require"
    12  	"golang.org/x/tools/go/packages"
    13  )
    14  
    15  func TestLayoutSingleFile(t *testing.T) {
    16  	_ = syscall.Unlink("testdata/singlefile/out/resolver.go")
    17  
    18  	cfg, err := config.LoadConfig("testdata/singlefile/gqlgen.yml")
    19  	require.NoError(t, err)
    20  	p := Plugin{}
    21  
    22  	require.NoError(t, cfg.Init())
    23  
    24  	data, err := codegen.BuildData(cfg)
    25  	if err != nil {
    26  		panic(err)
    27  	}
    28  
    29  	require.NoError(t, p.GenerateCode(data))
    30  	assertNoErrors(t, "github.com/99designs/gqlgen/plugin/resolvergen/testdata/singlefile/out")
    31  }
    32  
    33  func TestLayoutFollowSchema(t *testing.T) {
    34  	testFollowSchemaPersistence(t, "testdata/followschema")
    35  
    36  	b, err := os.ReadFile("testdata/followschema/out/schema.resolvers.go")
    37  	require.NoError(t, err)
    38  	source := string(b)
    39  
    40  	require.Contains(t, source, "// CustomerResolverType.Resolver implementation")
    41  	require.Contains(t, source, "// CustomerResolverType.Name implementation")
    42  	require.Contains(t, source, "// AUserHelperFunction implementation")
    43  }
    44  
    45  func TestLayoutFollowSchemaWithCustomFilename(t *testing.T) {
    46  	testFollowSchemaPersistence(t, "testdata/filetemplate")
    47  
    48  	b, err := os.ReadFile("testdata/filetemplate/out/schema.custom.go")
    49  	require.NoError(t, err)
    50  	source := string(b)
    51  
    52  	require.Contains(t, source, "// CustomerResolverType.Resolver implementation")
    53  	require.Contains(t, source, "// CustomerResolverType.Name implementation")
    54  	require.Contains(t, source, "// AUserHelperFunction implementation")
    55  }
    56  
    57  func TestLayoutInvalidModelPath(t *testing.T) {
    58  	cfg, err := config.LoadConfig("testdata/invalid_model_path/gqlgen.yml")
    59  	require.NoError(t, err)
    60  
    61  	require.NoError(t, cfg.Init())
    62  
    63  	_, err = codegen.BuildData(cfg)
    64  	require.Error(t, err)
    65  }
    66  
    67  func testFollowSchemaPersistence(t *testing.T, dir string) {
    68  	_ = syscall.Unlink(dir + "/out/resolver.go")
    69  
    70  	cfg, err := config.LoadConfig(dir + "/gqlgen.yml")
    71  	require.NoError(t, err)
    72  	p := Plugin{}
    73  
    74  	require.NoError(t, cfg.Init())
    75  
    76  	data, err := codegen.BuildData(cfg)
    77  	if err != nil {
    78  		panic(err)
    79  	}
    80  
    81  	require.NoError(t, p.GenerateCode(data))
    82  	assertNoErrors(t, "github.com/99designs/gqlgen/plugin/resolvergen/"+dir+"/out")
    83  }
    84  
    85  func assertNoErrors(t *testing.T, pkg string) {
    86  	pkgs, err := packages.Load(&packages.Config{
    87  		Mode: packages.NeedName |
    88  			packages.NeedFiles |
    89  			packages.NeedCompiledGoFiles |
    90  			packages.NeedImports |
    91  			packages.NeedTypes |
    92  			packages.NeedTypesSizes,
    93  	}, pkg)
    94  	if err != nil {
    95  		panic(err)
    96  	}
    97  
    98  	hasErrors := false
    99  	for _, pkg := range pkgs {
   100  		for _, err := range pkg.Errors {
   101  			hasErrors = true
   102  			fmt.Println(err.Pos + ":" + err.Msg)
   103  		}
   104  	}
   105  	if hasErrors {
   106  		t.Fatal("see compilation errors above")
   107  	}
   108  }