Fix sarift-fmt checks for test/basic.sh

Previously, they were passing non-sarif input to sarif-fmt, which
obviously resulted in errors.

/facepalm

Signed-off-by: Adam Cmiel <[email protected]>

test/resources/files-to-check/busybox-sh.yaml-outputs/sarif-fmt.txt

@@ -1 +1,7 @@
-Error: missing field `runs` at line 36 column 1
+warning: Double quote to prevent globbing and word splitting.
+  ┌─ test/resources/files-to-check/busybox-sh.yaml:4:8
+  │
+4 │   echo $HELLO_THERE
+  │        ^^^^^^^^^^^^
+
+warning: 1 warnings emitted

test/resources/files-to-check/nested-scripts.yaml-outputs/sarif-fmt.txt

@@ -1 +1,7 @@
-Error: missing field `runs` at line 15 column 1
+warning: Remove surrounding $() to avoid executing output (or use eval if intentional).
+  ┌─ test/resources/files-to-check/nested-scripts.yaml:9:3
+  │
+9 │   $(bash script.sh)
+  │   ^^^^^^^^^^^^^^^^^
+
+warning: 1 warnings emitted

test/resources/files-to-check/tektontask.yaml-outputs/sarif-fmt.txt

@@ -1 +1,20 @@
-Error: missing field `runs` at line 58 column 1
+error: On most OS, shebangs can only specify a single parameter.
+   ┌─ test/resources/files-to-check/tektontask.yaml:34:9
+   │
+34 │         #!/bin/bash -e -u -o pipefail
+   │         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+warning: Double quote to prevent globbing and word splitting.
+   ┌─ test/resources/files-to-check/tektontask.yaml:29:14
+   │
+29 │         eval $SCRIPT
+   │              ^^^^^^^
+
+warning: watery_tart is referenced but not assigned.
+   ┌─ test/resources/files-to-check/tektontask.yaml:27:86
+   │
+27 │             echo "You can't expect to wield supreme executive power just 'cause some $watery_tart threw a sword at you!"
+   │                                                                                      ^^^^^^^^^^^^
+
+warning: 2 warnings emitted
+error: 1 errors emitted

test/test_helper/utils.bash

@@ -24,6 +24,17 @@ test_human_readable_files() {
     run csgrep --embed 4 <<< "$csgrep_input"
     assert_output_file "$output" "$expected_files_dir/csgrep.embed4.txt"
 
-    run sarif-fmt --color never <<< "$csgrep_input"
+    local input_is_sarif
+    input_is_sarif=$(
+        jq '.["$schema"] and (.["$schema"] | test("sarif-.*\\.json$"))' <<< "$csgrep_input"
+    )
+    local sarif
+    if [[ $input_is_sarif == true ]]; then
+        sarif=$csgrep_input
+    else
+        sarif=$(csgrep --mode=sarif <<< "$csgrep_input")
+    fi
+
+    run sarif-fmt --color never <<< "$sarif"
     assert_output_file "$output" "$expected_files_dir/sarif-fmt.txt"
 }