Try add jacocoTestReport & codecov

.travis.yml

@@ -6,20 +6,26 @@ jdk:
 before_install:
   - chmod +x gradlew
 
+install:
+  - echo "Override default Travis install step to avoid unnecessary './gradlew assemble'."
+
 script:
-  - ./gradlew test buildPlugin --console=plain
+  - ./gradlew check buildPlugin --console=plain
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+deploy:
+  provider: script
+  script: ./gradlew clean check publishPlugin --console=plain
+  on:
+    tags: true
+    all_branches: true
 
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
 
-deploy:
-  provider: script
-  script: ./gradlew clean test publishPlugin --console=plain
-  on:
-    tags: true
-    all_branches: true
-
 cache:
   directories:
     - $HOME/.gradle/caches/

build.gradle

@@ -25,6 +25,7 @@ repositories {
 apply plugin: "idea"
 apply plugin: "kotlin"
 apply plugin: "org.jetbrains.intellij"
+apply plugin: "jacoco"
 
 intellij {
     pluginName name
@@ -67,4 +68,14 @@ jar.archiveName = "intellij-rainbow-brackets.jar"
     languageVersion = kotlinLanguageVersion
     apiVersion = kotlinTargetVersion
     jvmTarget = javaVersion
-}
+}
+
+jacocoTestReport {
+    reports {
+        xml.enabled true
+        csv.enabled false
+        html.enabled true
+    }
+}
+
+check.dependsOn jacocoTestReport