tests/{cli-opts,integration}.sh: Add test implementations

3 files changed, 202 insertions, 0 deletions

diff --git a/tests/cli-opts.sh b/tests/cli-opts.sh
index e69de29..39f01f4 100755
--- a/tests/cli-opts.sh
+++ b/tests/cli-opts.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+set -eu
+
+. tests/lib.sh
+
+
+test_generates_uuid_with_0_args() {
+	testing 'generates UUID with 0 arguments'
+
+	N="$LINENO"
+	OUT="$(mkstemp)"
+	ERR="$(mkstemp)"
+	trap 'rm -f "$OUT" "$ERR"' EXIT
+	STATUS=0
+	./uuid.bin 1>"$OUT" 2>"$ERR" || STATUS=$?
+	assert_status 0
+	assert_empty_stderr
+	rm "$OUT" "$ERR"
+
+	test_ok
+}
+
+test_checks_string_with_1_arg() {
+	testing 'checks string with 1 arg'
+
+	N="$LINENO"
+	OUT="$(mkstemp)"
+	ERR="$(mkstemp)"
+	trap 'rm -f "$OUT" "$ERR"' EXIT
+	STATUS=0
+	./uuid.bin 'cac94e13-41fa-40c4-bd46-5b7b3b46c09e' 1>"$OUT" 2>"$ERR" || STATUS=$?
+	assert_status 0
+	assert_empty_stdout
+	assert_empty_stderr
+	rm "$OUT" "$ERR"
+
+	N="$LINENO"
+	OUT="$(mkstemp)"
+	ERR="$(mkstemp)"
+	trap 'rm -f "$OUT" "$ERR"' EXIT
+	STATUS=0
+	./uuid.bin 'bad-uuid-string' 1>"$OUT" 2>"$ERR" || STATUS=$?
+	assert_status 3
+	assert_empty_stdout
+	assert_stderr "uuid: str isn't of the correct length"
+	rm "$OUT" "$ERR"
+
+	test_ok
+}
+
+
+
+test_generates_uuid_with_0_args
+test_checks_string_with_1_arg
diff --git a/tests/integration.sh b/tests/integration.sh
index e69de29..04d37ac 100755
--- a/tests/integration.sh
+++ b/tests/integration.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+set -eu
+
+. tests/lib.sh
+
+
+test_a_generated_uuid_is_always_valid() {
+	testing 'a generated UUID is always valid'
+
+	N="$LINENO"
+	OUT="$(mkstemp)"
+	ERR="$(mkstemp)"
+	trap 'rm -f "$OUT" "$ERR"' EXIT
+	STATUS=0
+	./uuid.bin "$(./uuid.bin)" 1>"$OUT" 2>"$ERR" || STATUS=$?
+	assert_status 0
+	assert_empty_stdout
+	assert_empty_stderr
+	rm "$OUT" "$ERR"
+
+	test_ok
+}
+
+
+
+test_a_generated_uuid_is_always_valid
diff --git a/tests/lib.sh b/tests/lib.sh
new file mode 100644
index 0000000..649c61d
--- /dev/null
+++ b/tests/lib.sh
@@ -0,0 +1,122 @@
+#!/bin/sh
+
+
+export TMPDIR="${TMPDIR:-$XDG_RUNTIME_DIR}"
+
+end="\033[0m"
+red="\033[0;31m"
+green="\033[0;32m"
+yellow="\033[0;33m"
+
+N=
+OUT=
+ERR=
+STATUS=
+
+ERROR() {
+	# shellcheck disable=2059
+	printf "${red}ERROR${end}"
+}
+
+print_debug_info() {
+	# shellcheck disable=2016
+	printf 'LINENO:   %s\n$OUT:      %s\n$ERR:      %s\n' \
+		"$N" "$OUT" "$ERR" >&2
+}
+
+assert_status() {
+	if [ "$STATUS" != "$1" ]; then
+		printf '\n%s: Bad status.\n\nexpected: %s\ngot:      %s\n' \
+			"$(ERROR)" "$1" "$STATUS" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_usage() {
+	if ! grep -Fq 'Usage' "$1"; then
+		echo 'Expected to find "Usage" text, it was missing:' >&2
+		cat "$1" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_empty_stream() {
+	if [ -s "$2" ]; then
+		FMT='\n%s: Expected %s (%s) to be empty, but has content:\n%s\n'
+		# shellcheck disable=2059
+		printf "$FMT" \
+			"$(ERROR)" "$1" "$2" "$(cat "$2")" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_empty_stdout() {
+	assert_empty_stream STDOUT "$OUT"
+}
+
+assert_empty_stderr() {
+	assert_empty_stream STDERR "$ERR"
+}
+
+assert_stream() {
+	if [ "$(cat "$2")" != "$3" ]; then
+		printf '\n%s: Bad %s (%s)\n\nexpected: %s\ngot:      %s\n' \
+			"$(ERROR)" "$1" "$2" "$3" "$(cat "$2")" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_stdout() {
+	assert_stream STDOUT "$OUT" "$1"
+}
+
+assert_stderr() {
+	assert_stream STDERR "$ERR" "$1"
+}
+
+assert_grep_stream() {
+	if ! grep -qE "$3" "$2"; then
+		printf '\n%s: Bad %s (%s)\n\ngrepping: %s\nin:\n%s\n' \
+			"$(ERROR)" "$1" "$2" "$3"  "$(cat "$2")" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_grep_stdout() {
+	assert_grep_stream STDOUT "$OUT" "$1"
+}
+
+assert_grep_stderr() {
+	assert_grep_stream STDERR "$ERR" "$1"
+}
+
+assert_fgrep_stream() {
+	if ! grep -Fq -- "$3" "$2"; then
+		printf '\n%s: Bad %s (%s)\n\ngrepping: %s\nin:\n%s\n' \
+			"$(ERROR)" "$1" "$2" "$3"  "$(cat "$2")" >&2
+		print_debug_info
+		exit 1
+	fi
+}
+
+assert_fgrep_stdout() {
+	assert_fgrep_stream STDOUT "$OUT" "$1"
+}
+
+assert_fgrep_stderr() {
+	assert_fgrep_stream STDERR "$ERR" "$1"
+}
+
+testing() {
+	printf "${yellow}testing${end}: %s..." "$1" >&2
+}
+
+test_ok() {
+	# shellcheck disable=2059
+	printf " ${green}OK${end}.\n" >&2
+}