github.com/adevinta/maiao@v0.0.0-20240318133227-b6f9656b5e07/pkg/system/system_test.go (about)

     1  package system_test
     2  
     3  import (
     4  	"os"
     5  	"testing"
     6  
     7  	"github.com/spf13/afero"
     8  	"github.com/stretchr/testify/assert"
     9  	"github.com/stretchr/testify/require"
    10  	"github.com/adevinta/maiao/pkg/system"
    11  )
    12  
    13  func TestGetEnvOrDefault(t *testing.T) {
    14  	t.Cleanup(system.Reset)
    15  	os.Setenv("some-key", "some-value")
    16  
    17  	assert.Equal(t, system.GetenvOrDefault("other-key", "default-value"), "default-value")
    18  	assert.Equal(t, system.GetenvOrDefault("some-key", "default-value"), "some-value")
    19  }
    20  
    21  func TestEnvConsidersCurrentEnvironmentVariables(t *testing.T) {
    22  	t.Cleanup(system.Reset)
    23  	_, ok := system.Env()["some-key"]
    24  	assert.False(t, ok)
    25  	os.Setenv("some-key", "some-value")
    26  	assert.Equal(t, "some-value", system.Env()["some-key"])
    27  }
    28  
    29  func TestResetRecoversDeletedEnvironmentVariables(t *testing.T) {
    30  	env := system.Env()
    31  
    32  	os.Unsetenv("PATH")
    33  	require.NotEqual(t, env, system.Env())
    34  	system.Reset()
    35  	assert.Equal(t, env, system.Env())
    36  }
    37  
    38  func TestResetRestoresModifiedEnvironmentVariables(t *testing.T) {
    39  	env := system.Env()
    40  
    41  	os.Setenv("PATH", "alternative-value")
    42  	require.NotEqual(t, env, system.Env())
    43  	system.Reset()
    44  	assert.Equal(t, env, system.Env())
    45  }
    46  
    47  func TestResetRemovesAddedEnvironmentVariables(t *testing.T) {
    48  	env := system.Env()
    49  
    50  	os.Setenv("some-key", "some-value")
    51  	require.NotEqual(t, env, system.Env())
    52  	system.Reset()
    53  	assert.Equal(t, env, system.Env())
    54  }
    55  
    56  func TestResetRestoresDefaultFileSystem(t *testing.T) {
    57  	fs := system.DefaultFileSystem
    58  	system.DefaultFileSystem = afero.NewMemMapFs()
    59  	require.NotEqual(t, fs, system.DefaultFileSystem)
    60  	system.Reset()
    61  	assert.Equal(t, fs, system.DefaultFileSystem)
    62  }
    63  
    64  func TestResetRestoresWorkingDirectory(t *testing.T) {
    65  	wd, err := os.Getwd()
    66  	require.NoError(t, err)
    67  	require.NoError(t, os.Chdir("../"))
    68  	cwd, err := os.Getwd()
    69  	require.NoError(t, err)
    70  	require.NotEqual(t, wd, cwd)
    71  	system.Reset()
    72  	cwd, err = os.Getwd()
    73  	require.NoError(t, err)
    74  	assert.Equal(t, wd, cwd)
    75  }