[WIP] Add unit-tests for getdeps.

lib/getdeps/test/getdeps.bats

@@ -0,0 +1,116 @@
+#!/usr/bin/env bats
+
+readonly sSourceFile="${BATS_TMPDIR}/bats.$$.src"
+
+# Load test dependencies
+load "${PROJECT_ROOT}/vendor/bats-assert/load.bash"
+
+setup() {
+    # Load file under test
+    load "$(dirname "${BATS_TEST_DIRNAME}")/$(basename ${BATS_TEST_FILENAME} '.bats').sh"
+
+    # File descriptor 9 is used in mock functions to store input in
+    # After the file descriptor has been created, the assigned file needs to be
+    # deleted so that `/dev/fd/9` can be used for reading elsewhere without the
+    # need to know which file was originally used.
+    local -r sFileDescriptor="$(mktemp bats-mock.XXXXXX)"
+    exec 9<> "${sFileDescriptor}"
+    rm "${sFileDescriptor}"
+
+    getMockContent() {
+        cat /dev/fd/9
+    }
+
+    export -f getMockContent
+}
+
+teardown() {
+    exec 9>&- # close file descriptor
+}
+
+@test "getdeps--help should return OK when called" {
+    run bpkg_getdeps --help
+
+    assert_success
+}
+
+@test "getdeps--help should show expected output when called" {
+    run bpkg_getdeps --help
+
+    assert_output <<OUTPUT
+    Installs dependencies for a package.
+    usage: bpkg-getdeps [-h|--help]
+        or: bpkg-getdeps'
+OUTPUT
+}
+
+@test "getdeps should complain when called without package.json being present" {
+    cd /tmp
+
+    run bpkg_getdeps
+
+    assert_output --partial 'error: Unable to find `package.json'
+}
+
+@test "getdeps should complain when called without bpkg-json being present" {
+    run bpkg_getdeps
+
+    assert_output --partial  'bpkg-json: command not found'
+}
+
+@test "getdeps should not exit with error status when called without bpkg-json being present" {
+    run bpkg_getdeps
+
+    assert_success
+}
+
+@test "getdeps should return OK when called" {
+    bpkg-json() { echo '["dependencies","mock-dependency"'; }
+
+    run bpkg_getdeps
+
+    assert_success
+}
+
+
+@test "getdeps should call bpkg-install when called with bpkg-json present" {
+
+    # arrange
+    bpkg-json() { echo '["dependencies","mock-dependency"'; }
+
+    bpkg() { echo "$@" >&9; }
+
+    # act
+    run bpkg_getdeps
+
+    # assert
+    assert_equal "$(getMockContent)" 'install mock-dependency'
+}
+
+@test "getdeps should call bpkg-install for each dependency when called for multiple dependencies" {
+
+    # arrange
+    bpkg-json() { echo '\
+["dependencies","mock-dependency"
+["dependencies","mock-dependency-1"
+["dependencies","mock-dependency-2"
+["dependencies","mock-dependency-3"
+'
+    }
+
+    bpkg() { echo -n "$@ " >&9; }
+
+    # act
+    run bpkg_getdeps
+
+    # assert
+    assert_equal "$(getMockContent)" 'install mock-dependency install mock-dependency-1 install mock-dependency-2 install mock-dependency-3 '
+}
+
+# echo "# : ${status}" >&3
+# echo "# : ${output}" >&3
+# echo -e "# : ${lines[@]}" >&3
+
+# arrange
+# act
+# assert