github.com/paultyng/terraform@v0.6.11-0.20180227224804-66ff8f8bed40/configs/parser_test.go (about)

     1  package configs
     2  
     3  import (
     4  	"os"
     5  	"path"
     6  	"reflect"
     7  	"testing"
     8  
     9  	"github.com/davecgh/go-spew/spew"
    10  
    11  	"github.com/hashicorp/hcl2/hcl"
    12  	"github.com/spf13/afero"
    13  )
    14  
    15  // testParser returns a parser that reads files from the given map, which
    16  // is from paths to file contents.
    17  //
    18  // Since this function uses only in-memory objects, it should never fail.
    19  // If any errors are encountered in practice, this function will panic.
    20  func testParser(files map[string]string) *Parser {
    21  	fs := afero.Afero{Fs: afero.NewMemMapFs()}
    22  
    23  	for filePath, contents := range files {
    24  		dirPath := path.Dir(filePath)
    25  		err := fs.MkdirAll(dirPath, os.ModePerm)
    26  		if err != nil {
    27  			panic(err)
    28  		}
    29  		err = fs.WriteFile(filePath, []byte(contents), os.ModePerm)
    30  		if err != nil {
    31  			panic(err)
    32  		}
    33  	}
    34  
    35  	return NewParser(fs)
    36  }
    37  
    38  // testModuleFromFile reads a single file, wraps it in a module, and returns
    39  // it. This is a helper for use in unit tests.
    40  func testModuleFromFile(filename string) (*Module, hcl.Diagnostics) {
    41  	parser := NewParser(nil)
    42  	f, diags := parser.LoadConfigFile(filename)
    43  	mod, modDiags := NewModule([]*File{f}, nil)
    44  	diags = append(diags, modDiags...)
    45  	return mod, modDiags
    46  }
    47  
    48  // testModuleFromDir reads configuration from the given directory path as
    49  // a module and returns it. This is a helper for use in unit tests.
    50  func testModuleFromDir(path string) (*Module, hcl.Diagnostics) {
    51  	parser := NewParser(nil)
    52  	return parser.LoadConfigDir(path)
    53  }
    54  
    55  func assertNoDiagnostics(t *testing.T, diags hcl.Diagnostics) bool {
    56  	t.Helper()
    57  	return assertDiagnosticCount(t, diags, 0)
    58  }
    59  
    60  func assertDiagnosticCount(t *testing.T, diags hcl.Diagnostics, want int) bool {
    61  	t.Helper()
    62  	if len(diags) != 0 {
    63  		t.Errorf("wrong number of diagnostics %d; want %d", len(diags), want)
    64  		for _, diag := range diags {
    65  			t.Logf("- %s", diag)
    66  		}
    67  		return true
    68  	}
    69  	return false
    70  }
    71  
    72  func assertDiagnosticSummary(t *testing.T, diags hcl.Diagnostics, want string) bool {
    73  	t.Helper()
    74  
    75  	for _, diag := range diags {
    76  		if diag.Summary == want {
    77  			return false
    78  		}
    79  	}
    80  
    81  	t.Errorf("missing diagnostic summary %q", want)
    82  	for _, diag := range diags {
    83  		t.Logf("- %s", diag)
    84  	}
    85  	return true
    86  }
    87  
    88  func assertResultDeepEqual(t *testing.T, got, want interface{}) bool {
    89  	t.Helper()
    90  	if !reflect.DeepEqual(got, want) {
    91  		t.Errorf("wrong result\ngot: %swant: %s", spew.Sdump(got), spew.Sdump(want))
    92  		return true
    93  	}
    94  	return false
    95  }
    96  
    97  func stringPtr(s string) *string {
    98  	return &s
    99  }