pkg_test.go

     1  // Copyright 2019 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package load
     6  
     7  import (
     8  	"cmd/go/internal/cfg"
     9  	"testing"
    10  )
    11  
    12  func TestPkgDefaultExecName(t *testing.T) {
    13  	oldModulesEnabled := cfg.ModulesEnabled
    14  	defer func() { cfg.ModulesEnabled = oldModulesEnabled }()
    15  	for _, tt := range []struct {
    16  		in         string
    17  		files      []string
    18  		wantMod    string
    19  		wantGopath string
    20  	}{
    21  		{"example.com/mycmd", []string{}, "mycmd", "mycmd"},
    22  		{"example.com/mycmd/v0", []string{}, "v0", "v0"},
    23  		{"example.com/mycmd/v1", []string{}, "v1", "v1"},
    24  		{"example.com/mycmd/v2", []string{}, "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
    25  		{"example.com/mycmd/v3", []string{}, "mycmd", "v3"}, // Semantic import versioning, use second last element in module mode.
    26  		{"mycmd", []string{}, "mycmd", "mycmd"},
    27  		{"mycmd/v0", []string{}, "v0", "v0"},
    28  		{"mycmd/v1", []string{}, "v1", "v1"},
    29  		{"mycmd/v2", []string{}, "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
    30  		{"v0", []string{}, "v0", "v0"},
    31  		{"v1", []string{}, "v1", "v1"},
    32  		{"v2", []string{}, "v2", "v2"},
    33  		{"command-line-arguments", []string{"output.go", "foo.go"}, "output", "output"},
    34  	} {
    35  		{
    36  			cfg.ModulesEnabled = true
    37  			pkg := new(Package)
    38  			pkg.ImportPath = tt.in
    39  			pkg.GoFiles = tt.files
    40  			pkg.Internal.CmdlineFiles = len(tt.files) > 0
    41  			gotMod := pkg.DefaultExecName()
    42  			if gotMod != tt.wantMod {
    43  				t.Errorf("pkg.DefaultExecName with ImportPath = %q in module mode = %v; want %v", tt.in, gotMod, tt.wantMod)
    44  			}
    45  		}
    46  		{
    47  			cfg.ModulesEnabled = false
    48  			pkg := new(Package)
    49  			pkg.ImportPath = tt.in
    50  			pkg.GoFiles = tt.files
    51  			pkg.Internal.CmdlineFiles = len(tt.files) > 0
    52  			gotGopath := pkg.DefaultExecName()
    53  			if gotGopath != tt.wantGopath {
    54  				t.Errorf("pkg.DefaultExecName with ImportPath = %q in gopath mode = %v; want %v", tt.in, gotGopath, tt.wantGopath)
    55  			}
    56  		}
    57  	}
    58  }
    59  
    60  func TestIsVersionElement(t *testing.T) {
    61  	t.Parallel()
    62  	for _, tt := range []struct {
    63  		in   string
    64  		want bool
    65  	}{
    66  		{"v0", false},
    67  		{"v05", false},
    68  		{"v1", false},
    69  		{"v2", true},
    70  		{"v3", true},
    71  		{"v9", true},
    72  		{"v10", true},
    73  		{"v11", true},
    74  		{"v", false},
    75  		{"vx", false},
    76  	} {
    77  		got := isVersionElement(tt.in)
    78  		if got != tt.want {
    79  			t.Errorf("isVersionElement(%q) = %v; want %v", tt.in, got, tt.want)
    80  		}
    81  	}
    82  }
    83
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