vers_test.go

     1  // Copyright 2023 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 constraint
     6  
     7  import (
     8  	"fmt"
     9  	"testing"
    10  )
    11  
    12  var tests = []struct {
    13  	in  string
    14  	out int
    15  }{
    16  	{"//go:build linux && go1.60", 60},
    17  	{"//go:build ignore && go1.60", 60},
    18  	{"//go:build ignore || go1.60", -1},
    19  	{"//go:build go1.50 || (ignore && go1.60)", 50},
    20  	{"// +build go1.60,linux", 60},
    21  	{"// +build go1.60 linux", -1},
    22  	{"//go:build go1.50 && !go1.60", 50},
    23  	{"//go:build !go1.60", -1},
    24  	{"//go:build linux && go1.50 || darwin && go1.60", 50},
    25  	{"//go:build linux && go1.50 || !(!darwin || !go1.60)", 50},
    26  }
    27  
    28  func TestGoVersion(t *testing.T) {
    29  	for _, tt := range tests {
    30  		x, err := Parse(tt.in)
    31  		if err != nil {
    32  			t.Fatal(err)
    33  		}
    34  		v := GoVersion(x)
    35  		want := ""
    36  		if tt.out == 0 {
    37  			want = "go1"
    38  		} else if tt.out > 0 {
    39  			want = fmt.Sprintf("go1.%d", tt.out)
    40  		}
    41  		if v != want {
    42  			t.Errorf("GoVersion(%q) = %q, want %q, nil", tt.in, v, want)
    43  		}
    44  	}
    45  }
    46
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