Add a test script to compile typings and test on travis (#2808)

tests/run_all_tests.sh

@@ -67,6 +67,9 @@ run_test_command "node" "./node_modules/.bin/mocha tests/node --opts tests/node/
 # Run generator tests inside a browser and check the results.
 run_test_command "generators" "tests/scripts/run_generators.sh"
 
+# Generate TypeScript typings and ensure there are no errors.
+run_test_command "typings" "tests/scripts/compile_typings.sh"
+
 # # Attempt advanced compilation of a Blockly app.
 # run_test_command "compile" "tests/compile/compile.sh"
 

tests/scripts/compile_typings.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# ANSI colors
+BOLD_GREEN='\033[1;32m'
+BOLD_RED='\033[1;31m'
+ANSI_RESET='\033[0m'
+
+# Download TypeScript to obtain the compiler.
+echo "Downloading TypeScript"
+npm install typescript
+
+# Generate Blockly typings.
+echo "Generating Blockly typings"
+npm run typings
+
+# Use the TypeScript compiler to compile the generated typings.
+echo "Compiling typings"
+cd typings
+../node_modules/.bin/tsc blockly.d.ts
+
+
+if [ $? -eq 0 ]
+then
+  echo -e "${BOLD_GREEN}TypeScript typings compiled successfully.${ANSI_RESET}"
+  exit 0
+else
+  echo -e "${BOLD_RED}Failed to compile TypeScript typings.${ANSI_RESET}" >&2
+  exit 1
+fi