diff --git a/scripts/tests/example_logfiles/failed_disabled_module.txt b/scripts/tests/example_logfiles/failed_disabled_module.txt
new file mode 100644
index 0000000..50fd552
--- /dev/null
+++ b/scripts/tests/example_logfiles/failed_disabled_module.txt
@@ -0,0 +1 @@
+[2021-06-12 12:49:18,452 - bdfr.downloader - DEBUG] - Submission m2601g skipped due to disabled module Direct
diff --git a/scripts/tests/example_logfiles/failed_no_downloader.txt b/scripts/tests/example_logfiles/failed_no_downloader.txt
new file mode 100644
index 0000000..511d11f
--- /dev/null
+++ b/scripts/tests/example_logfiles/failed_no_downloader.txt
@@ -0,0 +1,3 @@
+[2021-06-12 11:13:35,665 - bdfr.downloader - ERROR] - Could not download submission nxv3ew: No downloader module exists for url https://www.biorxiv.org/content/10.1101/2021.06.11.447961v1?rss=1
+[2021-06-12 11:14:21,958 - bdfr.downloader - ERROR] - Could not download submission nxv3ek: No downloader module exists for url https://alkossegyedit.hu/termek/pluss-macko-poloval-20cm/?feed_id=34832&_unique_id=60c40a1190ccb&utm_source=Reddit&utm_medium=AEAdmin&utm_campaign=Poster
+[2021-06-12 11:17:53,456 - bdfr.downloader - ERROR] - Could not download submission nxv3ea: No downloader module exists for url https://www.biorxiv.org/content/10.1101/2021.06.11.448067v1?rss=1
diff --git a/scripts/tests/example_logfiles/failed_resource_error.txt b/scripts/tests/example_logfiles/failed_resource_error.txt
new file mode 100644
index 0000000..c2ba24c
--- /dev/null
+++ b/scripts/tests/example_logfiles/failed_resource_error.txt
@@ -0,0 +1,2 @@
+[2021-06-12 11:18:25,794 - bdfr.downloader - ERROR] - Failed to download resource https://i.redd.it/61fniokpjq471.jpg in submission nxv3dt with downloader Direct: Unrecoverable error requesting resource: HTTP Code 404
+
diff --git a/scripts/tests/example_logfiles/failed_sitedownloader_error.txt b/scripts/tests/example_logfiles/failed_sitedownloader_error.txt
new file mode 100644
index 0000000..379ddac
--- /dev/null
+++ b/scripts/tests/example_logfiles/failed_sitedownloader_error.txt
@@ -0,0 +1,2 @@
+[2021-06-12 08:38:35,657 - bdfr.downloader - ERROR] - Site Gallery failed to download submission nxr7x9: No images found in Reddit gallery
+[2021-06-12 08:47:22,005 - bdfr.downloader - ERROR] - Site Gallery failed to download submission nxpn0h: Server responded with 503 to https://www.reddit.com/gallery/nxpkvh
diff --git a/scripts/tests/example_logfiles/failed_write_error.txt b/scripts/tests/example_logfiles/failed_write_error.txt
new file mode 100644
index 0000000..2462366
--- /dev/null
+++ b/scripts/tests/example_logfiles/failed_write_error.txt
@@ -0,0 +1 @@
+[2021-06-09 22:01:04,530 - bdfr.downloader - ERROR] - Failed to write file in submission nnboza to C:\Users\Yoga 14\path\to\output\ThotNetwork\KatieCarmine_I POST A NEW VIDEO ALMOST EVERYDAY AND YOU NEVER HAVE TO PAY EXTRA FOR IT! I want to share my sex life with you! Only $6 per month and you get full access to over 400 videos of me getting fuck_nnboza.mp4: [Errno 2] No such file or directory: 'C:\\Users\\Yoga 14\\path\\to\\output\\ThotNetwork\\KatieCarmine_I POST A NEW VIDEO ALMOST EVERYDAY AND YOU NEVER HAVE TO PAY EXTRA FOR IT! I want to share my sex life with you! Only $6 per month and you get full access to over 400 videos of me getting fuck_nnboza.mp4'
diff --git a/scripts/tests/example_logfiles/succeed_already_exists.txt b/scripts/tests/example_logfiles/succeed_already_exists.txt
new file mode 100644
index 0000000..e5713d7
--- /dev/null
+++ b/scripts/tests/example_logfiles/succeed_already_exists.txt
@@ -0,0 +1,3 @@
+[2021-06-12 08:41:51,464 - bdfr.downloader - DEBUG] - File /media/smaug/private/reddit/tumblr/nxry0l.jpg from submission nxry0l already exists, continuing
+[2021-06-12 08:41:51,469 - bdfr.downloader - DEBUG] - File /media/smaug/private/reddit/tumblr/nxrlgn.gif from submission nxrlgn already exists, continuing
+[2021-06-12 08:41:51,472 - bdfr.downloader - DEBUG] - File /media/smaug/private/reddit/tumblr/nxrq9g.png from submission nxrq9g already exists, continuing
diff --git a/scripts/tests/example_logfiles/succeed_download_filter.txt b/scripts/tests/example_logfiles/succeed_download_filter.txt
new file mode 100644
index 0000000..ce4c41d
--- /dev/null
+++ b/scripts/tests/example_logfiles/succeed_download_filter.txt
@@ -0,0 +1,3 @@
+[2021-06-10 20:36:48,722 - bdfr.downloader - DEBUG] - Download filter removed nwfirr with URL https://www.youtube.com/watch?v=NVSiX0Tsees
+[2021-06-12 19:56:36,848 - bdfr.downloader - DEBUG] - Download filter removed nwfgcl with URL https://www.reddit.com/r/MaliciousCompliance/comments/nwfgcl/new_guy_decided_to_play_manager_alright/
+[2021-06-12 19:56:28,587 - bdfr.downloader - DEBUG] - Download filter removed nxuxjy with URL https://www.reddit.com/r/MaliciousCompliance/comments/nxuxjy/you_want_an_omelette_with_nothing_inside_okay/
diff --git a/scripts/tests/example_logfiles/succeed_downloaded_submission.txt b/scripts/tests/example_logfiles/succeed_downloaded_submission.txt
new file mode 100644
index 0000000..fde97fa
--- /dev/null
+++ b/scripts/tests/example_logfiles/succeed_downloaded_submission.txt
@@ -0,0 +1,7 @@
+[2021-06-12 11:58:53,864 - bdfr.downloader - INFO] - Downloaded submission nxui9y from tumblr
+[2021-06-12 11:58:56,618 - bdfr.downloader - INFO] - Downloaded submission nxsr4r from tumblr
+[2021-06-12 11:58:59,026 - bdfr.downloader - INFO] - Downloaded submission nxviir from tumblr
+[2021-06-12 11:59:00,289 - bdfr.downloader - INFO] - Downloaded submission nxusva from tumblr
+[2021-06-12 11:59:00,735 - bdfr.downloader - INFO] - Downloaded submission nxvko7 from tumblr
+[2021-06-12 11:59:01,215 - bdfr.downloader - INFO] - Downloaded submission nxvd63 from tumblr
+[2021-06-12 11:59:13,891 - bdfr.downloader - INFO] - Downloaded submission nn9cor from tumblr
diff --git a/scripts/tests/example_logfiles/succeed_hard_link.txt b/scripts/tests/example_logfiles/succeed_hard_link.txt
new file mode 100644
index 0000000..6359f6b
--- /dev/null
+++ b/scripts/tests/example_logfiles/succeed_hard_link.txt
@@ -0,0 +1 @@
+[2021-06-11 17:33:02,118 - bdfr.downloader - INFO] - Hard link made linking /media/smaug/private/reddit/tumblr/nwnp2n.jpg to /media/smaug/private/reddit/tumblr/nwskqb.jpg in submission nwnp2n
diff --git a/scripts/tests/example_logfiles/succeed_resource_hash.txt b/scripts/tests/example_logfiles/succeed_resource_hash.txt
new file mode 100644
index 0000000..a089750
--- /dev/null
+++ b/scripts/tests/example_logfiles/succeed_resource_hash.txt
@@ -0,0 +1 @@
+[2021-06-11 17:33:02,118 - bdfr.downloader - INFO] - Resource hash aaaaaaaaaaaaaaaaaaaaaaa from submission n86jk8 downloaded elsewhere
diff --git a/scripts/tests/test_extract_failed_ids.bats b/scripts/tests/test_extract_failed_ids.bats
index e69de29..75b9bff 100644
--- a/scripts/tests/test_extract_failed_ids.bats
+++ b/scripts/tests/test_extract_failed_ids.bats
@@ -0,0 +1,43 @@
+setup() {
+    load ./test_helper/bats-support/load
+    load ./test_helper/bats-assert/load
+}
+
+teardown() {
+    rm -f failed.txt
+}
+
+@test "fail run no logfile" {
+    run ../extract_failed_ids.sh
+    assert_failure
+}
+
+@test "fail no downloader module" {
+    run ../extract_failed_ids.sh ./example_logfiles/failed_no_downloader.txt
+    assert [ "$( wc -l 'failed.txt' | awk '{ print $1 }' )" -eq "3" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'failed.txt' )" -eq "0" ];
+}
+
+@test "fail resource error" {
+    run ../extract_failed_ids.sh ./example_logfiles/failed_resource_error.txt
+    assert [ "$( wc -l 'failed.txt' | awk '{ print $1 }' )" -eq "1" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'failed.txt' )" -eq "0" ];
+}
+
+@test "fail site downloader error" {
+    run ../extract_failed_ids.sh ./example_logfiles/failed_sitedownloader_error.txt
+    assert [ "$( wc -l 'failed.txt' | awk '{ print $1 }' )" -eq "2" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'failed.txt' )" -eq "0" ];
+}
+
+@test "fail failed file write" {
+    run ../extract_failed_ids.sh ./example_logfiles/failed_write_error.txt
+    assert [ "$( wc -l 'failed.txt' | awk '{ print $1 }' )" -eq "1" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'failed.txt' )" -eq "0" ];
+}
+
+@test "fail disabled module" {
+    run ../extract_failed_ids.sh ./example_logfiles/failed_disabled_module.txt
+    assert [ "$( wc -l 'failed.txt' | awk '{ print $1 }' )" -eq "1" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'failed.txt' )" -eq "0" ];
+}
diff --git a/scripts/tests/test_extract_successful_ids.bats b/scripts/tests/test_extract_successful_ids.bats
index e69de29..364bedb 100644
--- a/scripts/tests/test_extract_successful_ids.bats
+++ b/scripts/tests/test_extract_successful_ids.bats
@@ -0,0 +1,38 @@
+setup() {
+    load ./test_helper/bats-support/load
+    load ./test_helper/bats-assert/load
+}
+
+teardown() {
+    rm -f successful.txt
+}
+
+@test "success downloaded submission" {
+    run ../extract_successful_ids.sh ./example_logfiles/succeed_downloaded_submission.txt
+    assert [ "$( wc -l 'successful.txt' | awk '{ print $1 }' )" -eq "7" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'successful.txt' )" -eq "0" ];
+}
+
+@test "success resource hash" {
+    run ../extract_successful_ids.sh ./example_logfiles/succeed_resource_hash.txt
+    assert [ "$( wc -l 'successful.txt' | awk '{ print $1 }' )" -eq "1" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'successful.txt' )" -eq "0" ];
+}
+
+@test "success download filter" {
+    run ../extract_successful_ids.sh ./example_logfiles/succeed_download_filter.txt
+    assert [ "$( wc -l 'successful.txt' | awk '{ print $1 }' )" -eq "3" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'successful.txt' )" -eq "0" ];
+}
+
+@test "success already exists" {
+    run ../extract_successful_ids.sh ./example_logfiles/succeed_already_exists.txt
+    assert [ "$( wc -l 'successful.txt' | awk '{ print $1 }' )" -eq "3" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'successful.txt' )" -eq "0" ];
+}
+
+@test "success hard link" {
+    run ../extract_successful_ids.sh ./example_logfiles/succeed_hard_link.txt
+    assert [ "$( wc -l 'successful.txt' | awk '{ print $1 }' )" -eq "1" ];
+    assert [ "$( grep -Ecv '\w{6,7}' 'successful.txt' )" -eq "0" ];
+}