Enable testing of graphql-client-web in CI

Author: tomhoule

.gitignore

@@ -3,3 +3,5 @@ node_modules/
 **/*.rs.bk
 Cargo.lock
 .idea
+scripts/*
+!scripts/*.sh

.travis.yml

@@ -9,10 +9,15 @@ before_script:
   - sudo apt-get install -y nodejs
   - npm i -g prettier
   - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (rustup component add rustfmt-preview clippy-preview) fi
+  - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (rustup target add wasm32-unknown-unknown) fi
+  - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (cargo install -f wasm-bindgen-cli) fi
+  - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (sudo apt-get install -y firefox) fi
+  - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (./scripts/install_geckodriver.sh) fi
 script:
   - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (cargo fmt --all -- --check) fi
   - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (cargo clippy -- -D warnings) fi
   - prettier --debug-check -l './**/*.json' './**/*.graphql'
   - cargo test --all
   - cargo build --manifest-path=./graphql_client/examples/github/Cargo.toml
   - cargo build --manifest-path=./graphql_client_cli/Cargo.toml
+  - if [ "$TRAVIS_RUST_VERSION" = "stable" ]; then (cd graphql_client_web && cargo test --target wasm32-unknown-unknown) fi

scripts/install_geckodriver.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# This script is meant for CI only.
+
+set -ex
+
+wget https://github.com/mozilla/geckodriver/releases/download/v0.23.0/geckodriver-v0.23.0-linux64.tar.gz
+tar xzf geckodriver-v0.23.0-linux64.tar.gz
+mv geckodriver /usr/local/bin/