Add coverage checks

Makefile

@@ -1,13 +1,22 @@
+SHELL := /bin/bash
+
 BINDIR         := bin
 EXECUTABLE_CLI := airshipadm
 
+SCRIPTS_DIR    := scripts
+
 # linting
 LINTER_CMD     := "github.com/golangci/golangci-lint/cmd/golangci-lint" run
 ADDTL_LINTERS  := goconst,gofmt,lll,unparam
 
 # go options
-PKG        := ./...
-TESTS      := .
+PKG          := ./...
+TESTS        := .
+
+# coverage
+COVER        := $(SCRIPTS_DIR)/coverage_test.sh
+COVER_FILE   := cover.out
+MIN_COVERAGE := 70
 
 
 .PHONY: build
@@ -19,13 +28,19 @@ test: build
 test: lint
 test: TESTFLAGS += -race -v
 test: unit-tests
+test: cover
 
 .PHONY: unit-tests
 unit-tests: build
 	@echo "Performing unit test step..."
-	@go test -run $(TESTS) $(PKG) $(TESTFLAGS)
+	@go test -run $(TESTS) $(PKG) $(TESTFLAGS) -coverprofile=$(COVER_FILE)
 	@echo "All unit tests passed"
 
+.PHONY: cover
+cover: unit-tests
+	@./$(COVER) $(COVER_FILE) $(MIN_COVERAGE)
+
+
 .PHONY: lint
 lint:
 	@echo "Performing linting step..."
@@ -35,6 +50,7 @@ lint:
 .PHONY: clean
 clean:
 	@rm -fr $(BINDIR)
+	@rm -fr $(COVER_FILE)
 
 .PHONY: docs
 docs:

scripts/coverage_test.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+check_coverage() {
+  COVER_FILE=$1
+  MIN_COVERAGE=$2
+  coverage_float=$(go tool cover -func="${COVER_FILE}" | awk "/^total:/ { print \$3 }")
+  coverage_int=${coverage_float%.*}
+  if (( "${coverage_int}" < "${MIN_COVERAGE}" )) ; then
+    echo "Coverage is at ${coverage_float}, but the required coverage is ${MIN_COVERAGE}"
+    exit 1
+  fi
+}
+
+if [ "$#" -ne 2 ]; then
+  echo "Usage: $0 <cover_file> <required_coverage>"
+  exit 1
+fi
+
+check_coverage $1 $2