add tests for branches get step

Signed-off-by: Taylor Silva <dev@taydev.net>

Author: taylorsilva

test/all.sh

@@ -5,6 +5,7 @@ set -e
 $(dirname $0)/image.sh
 $(dirname $0)/check.sh
 $(dirname $0)/check_branches.sh
+$(dirname $0)/get_branches.sh
 $(dirname $0)/common.sh
 $(dirname $0)/get.sh
 $(dirname $0)/put.sh

test/get_branches.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+set -e
+
+source $(dirname $0)/helpers.sh
+
+it_saves_the_given_branches() {
+  local dest=$TMPDIR/destination
+  mkdir -p $dest
+
+  get_branches "some-uri" "feat/foo,feat/bar,issue/qwerty" $dest | jq -e '
+    .version.branches == "feat/foo,feat/bar,issue/qwerty"
+  '
+
+  jq -e '. == ["feat/foo","feat/bar","issue/qwerty"]' < $dest/branches.json
+}
+
+it_saves_a_single_branch() {
+  local dest=$TMPDIR/destination
+  mkdir -p $dest
+
+  get_branches "some-uri" "feat/foo" $dest | jq -e '
+    .version.branches == "feat/foo"
+  '
+
+  jq -e '. == ["feat/foo"]' < $dest/branches.json
+}
+
+it_saves_emtpy_array_when_version_is_none() {
+  local dest=$TMPDIR/destination
+  mkdir -p $dest
+
+  get_branches "some-uri" "NONE" $dest
+
+  jq -e '. == []' < $dest/branches.json
+}
+
+it_saves_metadata_as_multiline_string() {
+  local dest=$TMPDIR/destination
+  mkdir -p $dest
+
+  get_branches "some-uri" "feat/foo,feat/bar,issue/qwerty" $dest | jq -e '
+    (.metadata[] | select(.name == "branches") | .value) == "feat/foo\nfeat/bar\nissue/qwerty"
+  '
+}
+
+run it_saves_the_given_branches
+run it_saves_a_single_branch
+run it_saves_emtpy_array_when_version_is_none
+run it_saves_metadata_as_multiline_string

test/helpers.sh

@@ -1175,6 +1175,22 @@ get_uri_with_fetch_branches() {
   }" | ${resource_dir}/in "$dest" | tee /dev/stderr
 }
 
+get_branches() {
+  local uri=$1
+  local branches=$2
+  local dest=$3
+
+  jq -n "{
+    source: {
+      uri: $(echo $uri | jq -R .),
+      version_type: \"branches\"
+    },
+    version: {
+      branches: $(echo $branches | jq -R .)
+    }
+  }" | ${resource_dir}/in "$dest" | tee /dev/stderr
+}
+
 get_uri_with_all_branches() {
   jq -n "{
     source: {