fix: test fixes and docs update

docs/reference/commands.md

@@ -191,7 +191,7 @@ Examples:
     garden dev
     garden dev --hot=foo-service,bar-service  # enable hot reloading for foo-service and bar-service
     garden dev --hot=*                        # enable hot reloading for all compatible services
-    garden dev --skip-tests=foo-service       # skip running any tests
+    garden dev --skip-tests=                  # skip running any tests
     garden dev --name integ                   # run all tests with the name 'integ' in the project
     garden test --name integ*                 # run all tests with the name starting with 'integ' in the project
 
@@ -204,8 +204,8 @@ Examples:
 | Argument | Alias | Type | Description |
 | -------- | ----- | ---- | ----------- |
   | `--hot-reload` | `-hot` | array:string | The name(s) of the service(s) to deploy with hot reloading enabled. Use comma as a separator to specify multiple services. Use * to deploy all services with hot reloading enabled (ignores services belonging to modules that don't support or haven't configured hot reloading).
-  | `--skip-tests` |  | boolean | Disable running the tests
-  | `--test-names` | `-tn` | array:string | The name(s) of the module(s) to test (skip to test all modules). Accepts glob patterns (e.g. integ* would run both 'integ' and 'integration')
+  | `--skip-tests` |  | boolean | Disable running the tests.
+  | `--test-names` | `-tn` | array:string | Filter the tests to run by test name across all modules (leave unset to run all tests). Accepts glob patterns (e.g. integ* would run both 'integ' and 'integration').
 
 ### garden exec
 

garden-service/src/commands/dev.ts

@@ -52,7 +52,7 @@ const devOpts = {
     help: "Disable running the tests.",
   }),
   "test-names": new StringsParameter({
-    help: "The name(s) of the module(s) to test (skip to test all modules). " +
+    help: "Filter the tests to run by test name across all modules (leave unset to run all tests). " +
       "Accepts glob patterns (e.g. integ* would run both 'integ' and 'integration').",
     alias: "tn",
   }),

garden-service/test/unit/src/config-graph.ts

@@ -211,6 +211,12 @@ describe("ConfigGraph", () => {
           moduleName: "module-c",
           key: "test.module-c.unit",
         },
+        {
+          type: "test",
+          name: "integ",
+          moduleName: "module-c",
+          key: "test.module-c.integ",
+        },
         {
           type: "run",
           name: "task-c",
@@ -229,6 +235,12 @@ describe("ConfigGraph", () => {
           moduleName: "module-a",
           key: "test.module-a.unit",
         },
+        {
+          type: "test",
+          name: "integration",
+          moduleName: "module-a",
+          key: "test.module-a.integration",
+        },
         {
           type: "run",
           name: "task-a",

garden-service/test/unit/src/config/base.ts

@@ -89,6 +89,10 @@ describe("loadConfig", () => {
           tests: [{
             name: "unit",
             command: ["echo", "OK"],
+          },
+          {
+            name: "integration",
+            command: ["echo", "OK"],
           }],
         },