[Fix] nvm_has_colors: also check if stdout is a terminal

ljharb · ljharb · commit 35212c134652 · 2026-01-27T10:31:07.000-08:00
diff --git a/nvm.sh b/nvm.sh
@@ -83,7 +83,7 @@ nvm_has_colors() {
   if nvm_has tput; then
     NVM_NUM_COLORS="$(command tput -T "${TERM:-vt100}" colors)"
   fi
-  [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]
+  [ -t 1 ] && [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]
 }
 
 nvm_curl_libz_support() {
diff --git a/test/fast/Aliases/Running 'nvm alias ˂aliasname˃ ˂target˃' again should change the target b/test/fast/Aliases/Running 'nvm alias ˂aliasname˃ ˂target˃' again should change the target
@@ -15,11 +15,11 @@ fi
 nvm alias test-stable-1 0.0.2 || die '`nvm alias test-stable-1 0.0.2` failed'
 
 OUTPUT="$(nvm alias test-stable-1 | strip_colors)"
-EXPECTED_OUTPUT='test-stable-1 -> 0.0.2 (-> v0.0.2)'
+EXPECTED_OUTPUT='test-stable-1 -> 0.0.2 (-> v0.0.2 *)'
 echo "$OUTPUT" | \grep -F "$EXPECTED_OUTPUT" || die "nvm alias test-stable-1 0.0.2 did not set test-stable-1 to 0.0.2: got '$OUTPUT'"
 
 nvm alias test-stable-1 0.0.1 || die '`nvm alias test-stable-1 0.0.1` failed'
 
 OUTPUT="$(nvm alias test-stable-1 | strip_colors)"
-EXPECTED_OUTPUT='test-stable-1 -> 0.0.1 (-> v0.0.1)'
+EXPECTED_OUTPUT='test-stable-1 -> 0.0.1 (-> v0.0.1 *)'
 echo "$OUTPUT" | \grep -F "$EXPECTED_OUTPUT" || die "nvm alias test-stable-1 0.0.1 did not set test-stable-1 to 0.0.1: got '$OUTPUT'"
diff --git a/test/fast/Aliases/Running 'nvm alias' lists implicit aliases when they do not exist b/test/fast/Aliases/Running 'nvm alias' lists implicit aliases when they do not exist
@@ -10,18 +10,18 @@ NVM_ALIAS_OUTPUT=$(nvm alias | strip_colors)
 
 EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
 STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "stable -> $EXPECTED_STABLE (-> $STABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "stable -> $EXPECTED_STABLE (-> $STABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local stable node version; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "node -> stable (-> $STABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "node -> stable (-> $STABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local stable node version under 'node'; got '$NVM_ALIAS_OUTPUT'"
 
 EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
 UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "unstable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "unstable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local unstable node version; got '$NVM_ALIAS_OUTPUT'"
 
 EXPECTED_IOJS="$(nvm_print_implicit_alias local iojs)"
 IOJS_VERSION="$(nvm_version "$EXPECTED_IOJS")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "iojs -> $EXPECTED_IOJS (-> $IOJS_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "iojs -> $EXPECTED_IOJS (-> $IOJS_VERSION *) (default)" \
   || die "nvm alias did not contain the default local iojs version; got '$NVM_ALIAS_OUTPUT'"
diff --git a/test/fast/Aliases/Running 'nvm alias' lists manual aliases instead of implicit aliases when present b/test/fast/Aliases/Running 'nvm alias' lists manual aliases instead of implicit aliases when present
@@ -35,16 +35,16 @@ nvm alias iojs unstable
 
 NVM_ALIAS_OUTPUT=$(nvm alias | strip_colors)
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'stable' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'unstable' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "node -> stable (-> $UNSTABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "node -> stable (-> $UNSTABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'node' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "iojs -> unstable (-> $STABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "iojs -> unstable (-> $STABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'iojs' alias; got '$NVM_ALIAS_OUTPUT'"
 
 cleanup
diff --git a/test/fast/Aliases/Running 'nvm alias' should list all aliases b/test/fast/Aliases/Running 'nvm alias' should list all aliases
@@ -7,43 +7,43 @@
 die () { echo "$@" ; exit 1; }
 
 NVM_ALIAS_OUTPUT="$(nvm alias | strip_colors)"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-1 -> 0.0.1 (-> v0.0.1)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-1 -> 0.0.1 (-> v0.0.1 *)' \
   || die "did not find test-stable-1 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-2 -> 0.0.2 (-> v0.0.2)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-2 -> 0.0.2 (-> v0.0.2 *)' \
   || die "did not find test-stable-2 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-3 -> 0.0.3 (-> v0.0.3)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-3 -> 0.0.3 (-> v0.0.3 *)' \
   || die "did not find test-stable-3 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-4 -> 0.0.4 (-> v0.0.4)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-4 -> 0.0.4 (-> v0.0.4 *)' \
   || die "did not find test-stable-4 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-5 -> 0.0.5 (-> v0.0.5)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-5 -> 0.0.5 (-> v0.0.5 *)' \
   || die "did not find test-stable-5 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-6 -> 0.0.6 (-> v0.0.6)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-6 -> 0.0.6 (-> v0.0.6 *)' \
   || die "did not find test-stable-6 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-7 -> 0.0.7 (-> v0.0.7)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-7 -> 0.0.7 (-> v0.0.7 *)' \
   || die "did not find test-stable-7 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-8 -> 0.0.8 (-> v0.0.8)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-8 -> 0.0.8 (-> v0.0.8 *)' \
   || die "did not find test-stable-8 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-9 -> 0.0.9 (-> v0.0.9)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-9 -> 0.0.9 (-> v0.0.9 *)' \
   || die "did not find test-stable-9 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-10 -> 0.0.10 (-> v0.0.10)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-10 -> 0.0.10 (-> v0.0.10 *)' \
   || die "did not find test-stable-10 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-1 -> 0.1.1 (-> v0.1.1)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-1 -> 0.1.1 (-> v0.1.1 *)' \
   || die "did not find test-unstable-1 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-2 -> 0.1.2 (-> v0.1.2)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-2 -> 0.1.2 (-> v0.1.2 *)' \
   || die "did not find test-unstable-2 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-3 -> 0.1.3 (-> v0.1.3)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-3 -> 0.1.3 (-> v0.1.3 *)' \
   || die "did not find test-unstable-3 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-4 -> 0.1.4 (-> v0.1.4)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-4 -> 0.1.4 (-> v0.1.4 *)' \
   || die "did not find test-unstable-4 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-5 -> 0.1.5 (-> v0.1.5)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-5 -> 0.1.5 (-> v0.1.5 *)' \
   || die "did not find test-unstable-5 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-6 -> 0.1.6 (-> v0.1.6)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-6 -> 0.1.6 (-> v0.1.6 *)' \
   || die "did not find test-unstable-6 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-7 -> 0.1.7 (-> v0.1.7)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-7 -> 0.1.7 (-> v0.1.7 *)' \
   || die "did not find test-unstable-7 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-8 -> 0.1.8 (-> v0.1.8)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-8 -> 0.1.8 (-> v0.1.8 *)' \
   || die "did not find test-unstable-8 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-9 -> 0.1.9 (-> v0.1.9)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-9 -> 0.1.9 (-> v0.1.9 *)' \
   || die "did not find test-unstable-9 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-10 -> 0.1.10 (-> v0.1.10)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-10 -> 0.1.10 (-> v0.1.10 *)' \
   || die "did not find test-unstable-10 alias; got '$NVM_ALIAS_OUTPUT'"
diff --git a/test/fast/Aliases/nvm_ensure_default_set b/test/fast/Aliases/nvm_ensure_default_set
@@ -14,7 +14,7 @@ nvm_ensure_default_set 0.3 || die "'nvm_ensure_default_set' with an existing def
 nvm unalias default || die "'nvm unalias default' failed"
 
 OUTPUT="$(nvm_ensure_default_set 0.2)"
-EXPECTED_OUTPUT="Creating default alias: default -> 0.2 (-> iojs-v0.2.10)"
+EXPECTED_OUTPUT="Creating default alias: default -> 0.2 (-> iojs-v0.2.10 *)"
 EXIT_CODE="$?"
 
 [ "_$(echo "$OUTPUT" | strip_colors)" = "_$EXPECTED_OUTPUT" ] || die "'nvm_ensure_default_set 0.2' did not output '$EXPECTED_OUTPUT', got '$OUTPUT'"
diff --git a/test/fast/Aliases/nvm_list_aliases calls nvm_get_colors b/test/fast/Aliases/nvm_list_aliases calls nvm_get_colors
@@ -7,6 +7,8 @@ die () { echo "$@" ; exit 1; }
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
   echo "0;95m"
 }
diff --git a/test/fast/Aliases/nvm_print_alias_path calls nvm_get_colors b/test/fast/Aliases/nvm_print_alias_path calls nvm_get_colors
@@ -11,6 +11,8 @@ die () {
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
   echo "0;95m"
 }
diff --git a/test/fast/Aliases/nvm_print_formatted_alias calls nvm_get_colors b/test/fast/Aliases/nvm_print_formatted_alias calls nvm_get_colors
@@ -9,6 +9,9 @@ die () {
 }
 
 set -e
+
+nvm_has_colors() { return 0; }
+
 # # # expecting in red and two grays:
 OUTPUT=$(echo $(nvm_print_formatted_alias fakealias fakedest) | awk '{ print substr($0, 1, 21); }')
 EXPECTED_OUTPUT="$(command printf %b "\033[0;31mfakealias\033[0m ")"
diff --git a/test/fast/Set Colors/nvm_print_default_alias calls nvm_get_colors b/test/fast/Set Colors/nvm_print_default_alias calls nvm_get_colors
@@ -11,6 +11,8 @@ die () {
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
     echo "0;95m"
 }
diff --git a/test/fast/Set Colors/nvm_print_versions calls nvm_get_colors b/test/fast/Set Colors/nvm_print_versions calls nvm_get_colors
@@ -22,6 +22,8 @@ if [ -n ${NVM_COLORS} ]; then
   unset NVM_COLORS
 fi
 
+nvm_has_colors() { return 0; }
+
 # default system color
 nvm use system
 OUTPUT=$(nvm_print_versions system)
diff --git a/test/fast/Unit tests/nvm ls-remote b/test/fast/Unit tests/nvm ls-remote
@@ -33,6 +33,8 @@ printf '%s\n' "$(cat "${LTS_NAMES_PATH}" | tail -n +1)" | while IFS= read -r LTS
   cp "${NVM_DIR}/alias/lts-backup/${LTS}" "${NVM_DIR}/alias/lts/"
 done
 
+nvm_has_colors() { return 0; }
+
 nvm deactivate 2>/dev/null || die 'unable to deactivate'
 
 \. ../../common.sh
@@ -67,12 +69,14 @@ printf '%s\n' "${LTS_LIST}" | while IFS= read -r LTS; do
   INDEX=$(($INDEX + 1))
 done
 
+nvm_has_colors() { return 1; }
 OUTPUT="$(nvm ls-remote lts/ARGON 2>&1)"
 EXIT_CODE=$?
+nvm_has_colors() { return 0; }
 [ $EXIT_CODE -eq 3 ] || die "nvm ls-remote lts/ARGON did not exit 3, got '${EXIT_CODE}'"
 
 EXPECTED_OUTPUT="LTS names must be lowercase
-            N/A"
+            N/A *"
 [ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "nvm ls-remote lts/ARGON did not output expected error message; got >${OUTPUT}< expected >${EXPECTED_OUTPUT}<"
 
 REMOTE="${PWD}/mocks/nvm_ls_remote.txt"
diff --git a/test/fast/Unit tests/nvm_has_colors b/test/fast/Unit tests/nvm_has_colors
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+die () { echo "$@" ; exit 1; }
+
+: nvm.sh
+\. ../../../nvm.sh
+
+# nvm_has_colors should be false in command substitution (stdout is not a terminal)
+[ "$(nvm_has_colors; echo $?)" = "1" ] || die 'nvm_has_colors should be false in command substitution'
+
+# nvm_has_colors should be false when stdout goes to /dev/null
+! nvm_has_colors >/dev/null || die 'nvm_has_colors should be false when stdout goes to /dev/null'
+
+# nvm_has_colors should be false when stdout goes to a pipe
+(! nvm_has_colors || echo "boo!") | read && die 'nvm_has_colors should be false when stdout goes to a pipe'
+
+# nvm_has_colors should be false when NVM_NO_COLORS is set, even if stdout is a terminal
+if [ -t 1 ]; then
+  ! NVM_NO_COLORS="--no-colors" nvm_has_colors || die 'nvm_has_colors should be false when NVM_NO_COLORS is set'
+fi
+
+# nvm_has_colors should be true when stdout is a terminal and colors are supported
+if [ -t 1 ] && nvm_has tput && [ "$(command tput -T "${TERM:-vt100}" colors)" -ge 8 ]; then
+  nvm_has_colors || die 'nvm_has_colors should be true when stdout is a terminal with color support'
+fi
+
+# nvm_has_colors should be true when redirected to /dev/tty (if available)
+if (exec >/dev/tty) 2>/dev/null && nvm_has tput && [ "$(command tput -T "${TERM:-vt100}" colors)" -ge 8 ]; then
+  nvm_has_colors >/dev/tty || die 'nvm_has_colors should be true when stdout goes to /dev/tty'
+fi
diff --git a/test/fast/Unit tests/nvm_print_alias_path b/test/fast/Unit tests/nvm_print_alias_path
@@ -39,7 +39,7 @@ nvm_version() {
 }
 
 OUTPUT="$(nvm_print_alias_path "$NVM_ALIAS_DIR" "$NVM_ALIAS_DIR/blah" | strip_colors)"
-EXPECTED_OUTPUT='blah -> "blah" (-> v"blah")'
+EXPECTED_OUTPUT='blah -> "blah" (-> v"blah" *)'
 [ "$OUTPUT" = "$EXPECTED_OUTPUT" ] || die "'nvm_print_alias_path \"\$NVM_ALIAS_DIR\" \"\$NVM_ALIAS_DIR/blah\"' should strip alias dir and print nvm_alias output; got '$OUTPUT', expected '$EXPECTED_OUTPUT'"
 
 cleanup
diff --git a/test/fast/Unit tests/nvm_print_default_alias b/test/fast/Unit tests/nvm_print_default_alias
@@ -33,7 +33,7 @@ nvm_version() {
 }
 
 OUTPUT="$(nvm_print_default_alias blah | strip_colors)"
-EXPECTED_OUTPUT='blah -> "local-blah" (-> v"local-blah") (default)'
+EXPECTED_OUTPUT='blah -> "local-blah" (-> v"local-blah" *) (default)'
 [ "$OUTPUT" = "$EXPECTED_OUTPUT" ] || die "'nvm_print_default_alias blah' should strip alias dir and print nvm_print_implicit_alias output; got '$OUTPUT', expected '$EXPECTED_OUTPUT'"
 
 cleanup
diff --git a/test/sourcing/Sourcing nvm.sh should use the default if available and no nvm node is loaded b/test/sourcing/Sourcing nvm.sh should use the default if available and no nvm node is loaded
@@ -24,5 +24,10 @@ NVM_LS_CURRENT="$(nvm ls current | strip_colors | \grep -o v0.10.1)"
 # NVM_LS_CURRENT_COLORED="$(nvm ls current | sed -n l)"
 
 NVM_ALIAS_DEFAULT="$(nvm alias default | strip_colors)"
-[ "_${NVM_ALIAS_DEFAULT}" = "_default -> 0.10.1 (-> v0.10.1)" ] \
-  || die "'nvm alias default did not return 'default -> 0.10.1 (-> v0.10.1)', got '${NVM_ALIAS_DEFAULT}'"
+[ "_${NVM_ALIAS_DEFAULT}" = "_default -> 0.10.1 (-> v0.10.1 *)" ] \
+  || die "'nvm alias default' without colors did not return 'default -> 0.10.1 (-> v0.10.1 *)', got '${NVM_ALIAS_DEFAULT}'"
+
+nvm_has_colors() { return 0; }
+NVM_ALIAS_DEFAULT_STRIPPED="$(nvm alias default | strip_colors)"
+[ "_${NVM_ALIAS_DEFAULT_STRIPPED}" = "_default -> 0.10.1 (-> v0.10.1)" ] \
+  || die "'nvm alias default' with colors stripped did not return 'default -> 0.10.1 (-> v0.10.1)', got '${NVM_ALIAS_DEFAULT_STRIPPED}'"
diff --git a/test/sourcing/Sourcing nvm.sh with --install should install the default b/test/sourcing/Sourcing nvm.sh with --install should install the default
@@ -33,5 +33,10 @@ NVM_LS_CURRENT="$(nvm ls current | strip_colors | command grep -o v0.10.2)"
 [ "_$NVM_LS_CURRENT" = '_v0.10.2' ] || die "'nvm ls current' did not return '-> v0.10.2', >${NVM_LS_CURRENT}<\n$(nvm_ls)"
 
 NVM_ALIAS_DEFAULT="$(nvm alias default | strip_colors)"
-[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.2 (-> v0.10.2)" ] \
-  || die "'nvm alias default did not return 'default -> 0.10.2 (-> v0.10.2)', got >${NVM_ALIAS_DEFAULT}<\n$(nvm_ls)"
+[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.2 (-> v0.10.2 *)" ] \
+  || die "'nvm alias default' without colors did not return 'default -> 0.10.2 (-> v0.10.2 *)', got >${NVM_ALIAS_DEFAULT}<\n$(nvm_ls)"
+
+nvm_has_colors() { return 0; }
+NVM_ALIAS_DEFAULT_STRIPPED="$(nvm alias default | strip_colors)"
+[ "_$NVM_ALIAS_DEFAULT_STRIPPED" = "_default -> 0.10.2 (-> v0.10.2)" ] \
+  || die "'nvm alias default' with colors stripped did not return 'default -> 0.10.2 (-> v0.10.2)', got >${NVM_ALIAS_DEFAULT_STRIPPED}<\n$(nvm_ls)"

Original file line number	Diff line number	Diff line change
`@@ -83,7 +83,7 @@ nvm_has_colors() {`
`83`	`83`	`if nvm_has tput; then`
`84`	`84`	`NVM_NUM_COLORS="$(command tput -T "${TERM:-vt100}" colors)"`
`85`	`85`	`fi`
`86`		`- [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]`
	`86`	`+ [ -t 1 ] && [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]`
`87`	`87`	`}`
`88`	`88`
`89`	`89`	`nvm_curl_libz_support() {`
Original file line number	Diff line number	Diff line change
`@@ -7,6 +7,8 @@ die () { echo "$@" ; exit 1; }`
`7`	`7`
`8`	`8`	`set -e`
`9`	`9`
	`10`	`+nvm_has_colors() { return 0; }`
	`11`	`+`
`10`	`12`	`nvm_get_colors(){`
`11`	`13`	`echo "0;95m"`
`12`	`14`	`}`
Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,8 @@ die () {`
`11`	`11`
`12`	`12`	`set -e`
`13`	`13`
	`14`	`+nvm_has_colors() { return 0; }`
	`15`	`+`
`14`	`16`	`nvm_get_colors(){`
`15`	`17`	`echo "0;95m"`
`16`	`18`	`}`
Original file line number	Diff line number	Diff line change
`@@ -9,6 +9,9 @@ die () {`
`9`	`9`	`}`
`10`	`10`
`11`	`11`	`set -e`
	`12`	`+`
	`13`	`+nvm_has_colors() { return 0; }`
	`14`	`+`
`12`	`15`	`# # # expecting in red and two grays:`
`13`	`16`	`OUTPUT=$(echo $(nvm_print_formatted_alias fakealias fakedest) \| awk '{ print substr($0, 1, 21); }')`
`14`	`17`	`EXPECTED_OUTPUT="$(command printf %b "\033[0;31mfakealias\033[0m ")"`