test harness: Fix a bug with empty actual or expected results.
Fixes zsh-users/zsh-syntax-highlighting#217.
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@ -75,7 +75,7 @@ run_test() {
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# Overlapping regions can be declared in region_highlight, so we first build an array of the
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# observed highlighting.
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local -A observed_result
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for i in {1..${#region_highlight}}; do
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for ((i=1; i<=${#region_highlight}; i++)); do
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highlight_zone=${(z)region_highlight[$i]}
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integer start=$highlight_zone[1] end=$highlight_zone[2]
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if (( start < end )) # region_highlight ranges are half-open
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@ -92,7 +92,7 @@ run_test() {
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# Then we compare the observed result with the expected one.
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echo "1..${#expected_region_highlight}"
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for i in {1..${#expected_region_highlight}}; do
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for ((i=1; i<=${#expected_region_highlight}; i++)); do
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local todo=
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highlight_zone=${(z)expected_region_highlight[$i]}
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[[ -n "$highlight_zone[4]" ]] && todo=" # TODO $highlight_zone[4]"
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