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Diffstat (limited to 'dependencies/pkg/mod/github.com/mattn/go-colorable@v0.1.13/colorable_test.go')
-rw-r--r--dependencies/pkg/mod/github.com/mattn/go-colorable@v0.1.13/colorable_test.go98
1 files changed, 98 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/mattn/go-colorable@v0.1.13/colorable_test.go b/dependencies/pkg/mod/github.com/mattn/go-colorable@v0.1.13/colorable_test.go
new file mode 100644
index 0000000..b848a4f
--- /dev/null
+++ b/dependencies/pkg/mod/github.com/mattn/go-colorable@v0.1.13/colorable_test.go
@@ -0,0 +1,98 @@
+package colorable
+
+import (
+ "bytes"
+ "os"
+ "runtime"
+ "testing"
+)
+
+// checkEncoding checks that colorable is output encoding agnostic as long as
+// the encoding is a superset of ASCII. This implies that one byte not part of
+// an ANSI sequence must give exactly one byte in output
+func checkEncoding(t *testing.T, data []byte) {
+ // Send non-UTF8 data to colorable
+ b := bytes.NewBuffer(make([]byte, 0, 10))
+ if b.Len() != 0 {
+ t.FailNow()
+ }
+ // TODO move colorable wrapping outside the test
+ NewNonColorable(b).Write(data)
+ if b.Len() != len(data) {
+ t.Fatalf("%d bytes expected, got %d", len(data), b.Len())
+ }
+}
+
+func TestEncoding(t *testing.T) {
+ checkEncoding(t, []byte{}) // Empty
+ checkEncoding(t, []byte(`abc`)) // "abc"
+ checkEncoding(t, []byte(`é`)) // "é" in UTF-8
+ checkEncoding(t, []byte{233}) // 'é' in Latin-1
+}
+
+func TestNonColorable(t *testing.T) {
+ var buf bytes.Buffer
+ want := "hello"
+ NewNonColorable(&buf).Write([]byte("\x1b[0m" + want + "\x1b[2J"))
+ got := buf.String()
+ if got != "hello" {
+ t.Fatalf("want %q but %q", want, got)
+ }
+
+ buf.Reset()
+ NewNonColorable(&buf).Write([]byte("\x1b["))
+ got = buf.String()
+ if got != "" {
+ t.Fatalf("want %q but %q", "", got)
+ }
+}
+
+func TestNonColorableNil(t *testing.T) {
+ paniced := false
+ func() {
+ defer func() {
+ recover()
+ paniced = true
+ }()
+ NewNonColorable(nil)
+ NewColorable(nil)
+ }()
+
+ if !paniced {
+ t.Fatalf("should panic")
+ }
+}
+
+func TestNonColorableESC(t *testing.T) {
+ var b bytes.Buffer
+ NewNonColorable(&b).Write([]byte{0x1b})
+ if b.Len() > 0 {
+ t.Fatalf("0 bytes expected, got %d", b.Len())
+ }
+}
+
+func TestNonColorableBadESC(t *testing.T) {
+ var b bytes.Buffer
+ NewNonColorable(&b).Write([]byte{0x1b, 0x1b})
+ if b.Len() > 0 {
+ t.Fatalf("0 bytes expected, got %d", b.Len())
+ }
+}
+
+func TestColorable(t *testing.T) {
+ if runtime.GOOS == "windows" {
+ t.Skipf("skip this test on windows")
+ }
+ _, ok := NewColorableStdout().(*os.File)
+ if !ok {
+ t.Fatalf("should os.Stdout on UNIX")
+ }
+ _, ok = NewColorableStderr().(*os.File)
+ if !ok {
+ t.Fatalf("should os.Stdout on UNIX")
+ }
+ _, ok = NewColorable(os.Stdout).(*os.File)
+ if !ok {
+ t.Fatalf("should os.Stdout on UNIX")
+ }
+}