Fix default suggestion strategy and add testing

Makefile

@@ -24,6 +24,9 @@ ALL_TARGETS := \
 	$(PLUGIN_TARGET) \
 	$(OH_MY_ZSH_LINK_TARGET)
 
+TEST_FILES := \
+	$(SCRIPT_DIR)/test*.zsh
+
 all: $(ALL_TARGETS)
 
 $(PLUGIN_TARGET): $(HEADER_FILES) $(SRC_FILES)
@@ -39,4 +42,7 @@ clean:
 
 .PHONY: test
 test: all
-	$(SCRIPT_DIR)/test.zsh
+	@for test_file in $(TEST_FILES); do \
+		echo "\nRunning $$test_file"; \
+		$$test_file; \
+	done

script/test-strategy-default.zsh

@@ -0,0 +1,80 @@
+#!/usr/bin/env zsh
+
+SCRIPT_DIR=$(dirname "$0")
+TEST_DIR=$SCRIPT_DIR/../test
+DIST_DIR=$SCRIPT_DIR/../
+
+source $TEST_DIR/stub-1.0.2.sh
+
+source $DIST_DIR/zsh-autosuggestions.zsh
+
+#--------------------------------------------------------------------#
+# Default Suggestions Strategy                                       #
+#--------------------------------------------------------------------#
+
+TMPHIST_FILE=/tmp/zsh-autosuggestions-test-tmp-hist
+
+# Use stub.sh for stubbing/mocking
+HISTSIZE=0  # Clear history
+HISTSIZE=100
+
+cat > $TMPHIST_FILE <<-EOH
+	one
+	two
+	three
+	four
+	five
+	six
+	seven
+	eight
+	nine
+	ten
+	eleven
+EOH
+echo >> $TMPHIST_FILE
+
+fc -R $TMPHIST_FILE
+
+rm $TMPHIST_FILE
+
+ZSH_AUTOSUGGEST_STRATEGY=default
+
+testNoMatch() {
+	assertEquals \
+		"Did not pick correct suggestion for prefix 'garbage'" \
+		"" \
+		"$(_zsh_autosuggest_suggestion garbage)"
+}
+
+testMatch() {
+	assertEquals \
+		"Did not pick correct suggestion for prefix 'o'" \
+		"one" \
+		"$(_zsh_autosuggest_suggestion o)"
+
+	assertEquals \
+		"Did not pick correct suggestion for prefix 't'" \
+		"ten" \
+		"$(_zsh_autosuggest_suggestion t)"
+
+	assertEquals \
+		"Did not pick correct suggestion for prefix 'tw'" \
+		"two" \
+		"$(_zsh_autosuggest_suggestion tw)"
+
+	assertEquals \
+		"Did not pick correct suggestion for prefix 'f'" \
+		"five" \
+		"$(_zsh_autosuggest_suggestion f)"
+
+	assertEquals \
+		"Did not pick correct suggestion for prefix 'fo'" \
+		"four" \
+		"$(_zsh_autosuggest_suggestion fo)"
+}
+
+setopt shwordsplit
+SHUNIT_PARENT=$0
+
+source $TEST_DIR/shunit2-2.1.6/src/shunit2
+

src/strategies/default.zsh

@@ -10,7 +10,7 @@ _zsh_autosuggest_strategy_default() {
 	local prefix="$(_zsh_autosuggest_escape_command_prefix "$1")"
 
 	# Get the hist number of the most recent history item that matches
-	local histkey="${${(k)history[(R)$prefix*]}[1]}"
+	local histkey="${${(@k)history[(R)$prefix*]}[1]}"
 
 	# Echo the history entry
 	echo -E "${history[$histkey]}"

zsh-autosuggestions.zsh

@@ -341,7 +341,7 @@ _zsh_autosuggest_strategy_default() {
 	local prefix="$(_zsh_autosuggest_escape_command_prefix "$1")"
 
 	# Get the hist number of the most recent history item that matches
-	local histkey="${${(k)history[(R)$prefix*]}[1]}"
+	local histkey="${${(@k)history[(R)$prefix*]}[1]}"
 
 	# Echo the history entry
 	echo -E "${history[$histkey]}"